2014 Vol. 32 No. 3
2014, 32(3): 205-210.
DOI: 10.3724/SP.J.1142.2014.30205
Abstract：
The achene shape and pericarp micro-morphology of 18 species of Cyperus in Shandong were observed and studied under scanning electron microscopy (SEM). Results showed that the Cyperus achenes were ellipsoidal-,ovoid- and obovoid-triangular with a columnar or conoid short-beak at the apex. The pericarp micro-morphology was classified into four types,viz reticulate-verruciform,reticulate,verruciform and irregular raised ornamentation. Although micro-morphology classification did not exhibit a relationship with traditional macro-morphology classification,it found obvious differences among species similar in morphology within Cyperus and also provided evidence of circumscription among species. Pericarp micro-morphology supported the opinion of attributing Juncellus,Mariscus and Torulinium to Cyperus.
The achene shape and pericarp micro-morphology of 18 species of Cyperus in Shandong were observed and studied under scanning electron microscopy (SEM). Results showed that the Cyperus achenes were ellipsoidal-,ovoid- and obovoid-triangular with a columnar or conoid short-beak at the apex. The pericarp micro-morphology was classified into four types,viz reticulate-verruciform,reticulate,verruciform and irregular raised ornamentation. Although micro-morphology classification did not exhibit a relationship with traditional macro-morphology classification,it found obvious differences among species similar in morphology within Cyperus and also provided evidence of circumscription among species. Pericarp micro-morphology supported the opinion of attributing Juncellus,Mariscus and Torulinium to Cyperus.
2014, 32(3): 211-215.
DOI: 10.3724/SP.J.1142.2014.30211
Abstract：
Gelidocalamus Wen, of which the type specimen is Gelidocalamus stellatus distributed in Jinggang Mountain, was proposed by Wen Taihui in 1982. Since then, new species or taxa have been continuously reported, resulting in the need of a systematic study of the genus. To clarify the relationship among species of Gelidocalamus, leaf micromorphology of nine species were observed by scanning electron microscopy. Results showed that the shape and distribution patterns of long cell, micro hair and macro hair looked very similar in these species. Nevertheless,papillae, prickle hair, stomatal apparatus and short cell showed significant differences among species. In particular, the shape and distributional patterns of the papillae on the stomatal apparatus exhibited rich diversity and were of taxonomic significance for Gelidocalamus.
Gelidocalamus Wen, of which the type specimen is Gelidocalamus stellatus distributed in Jinggang Mountain, was proposed by Wen Taihui in 1982. Since then, new species or taxa have been continuously reported, resulting in the need of a systematic study of the genus. To clarify the relationship among species of Gelidocalamus, leaf micromorphology of nine species were observed by scanning electron microscopy. Results showed that the shape and distribution patterns of long cell, micro hair and macro hair looked very similar in these species. Nevertheless,papillae, prickle hair, stomatal apparatus and short cell showed significant differences among species. In particular, the shape and distributional patterns of the papillae on the stomatal apparatus exhibited rich diversity and were of taxonomic significance for Gelidocalamus.
Abstract：
Chinese subtribe Conyzinae (Asteraceae：Astereae) consists of three small genera,Conyza,Microglossa and Thespis. To date,however,the molecular phylogenetic relationships among African Conyza,and Chinese Conyza,Thespis and Microglossa have not been investigated. The internal and external transcribed spacers of nuclear ribosomal DNA were used to reconstruct the phylogeny of Chinese Conyzinae through maximum parsimony and Bayesian analyses. Results showed that four Chinese Conyza species and Thespis divaricata belonged to a clade with most sampled African Conyza,whereas two Conyza stricta varieties and Microglossa pyrifolia were embedded deeply within the subtribe Grangeinae clade. Microglossa pyrifolia was closely related to Psiadia pascalii. Based on phylogeny,we considered that (1) C. stricta and C. incisa should be treated as a separate genus that belongs to subtribe Grangeiane;(2) four Chinese Conyza,Thespis and most sampled African Conyza belong to the genus Eschenbachia. Eschenbachia should belong to a new separate subtribe,while Thespis should be treated as a section of Eschenbachia. Eschenbachia may have arrived at southern China by several long-distance dispersals from Africa;(3) it is reasonable to maintain the generic status of Welwitschiella and Microglossa and treat Psiadia pascalii,C. scabrida and C. pyrrhopappa as members of Microglossa.
Chinese subtribe Conyzinae (Asteraceae：Astereae) consists of three small genera,Conyza,Microglossa and Thespis. To date,however,the molecular phylogenetic relationships among African Conyza,and Chinese Conyza,Thespis and Microglossa have not been investigated. The internal and external transcribed spacers of nuclear ribosomal DNA were used to reconstruct the phylogeny of Chinese Conyzinae through maximum parsimony and Bayesian analyses. Results showed that four Chinese Conyza species and Thespis divaricata belonged to a clade with most sampled African Conyza,whereas two Conyza stricta varieties and Microglossa pyrifolia were embedded deeply within the subtribe Grangeinae clade. Microglossa pyrifolia was closely related to Psiadia pascalii. Based on phylogeny,we considered that (1) C. stricta and C. incisa should be treated as a separate genus that belongs to subtribe Grangeiane;(2) four Chinese Conyza,Thespis and most sampled African Conyza belong to the genus Eschenbachia. Eschenbachia should belong to a new separate subtribe,while Thespis should be treated as a section of Eschenbachia. Eschenbachia may have arrived at southern China by several long-distance dispersals from Africa;(3) it is reasonable to maintain the generic status of Welwitschiella and Microglossa and treat Psiadia pascalii,C. scabrida and C. pyrrhopappa as members of Microglossa.
Abstract：
Phylogenetic analyses of 32 species of Polygonum L. and related genera were conducted on the basis of nrDNA ITS sequences using maximum parsimony. Results suggested that Polygonum did not constitute a monophyletic group,and that one monophyletic clade of Fagopyrum and Parapteropyrum named tribe Fagopyreae was placed outside the two major clades corresponding to tribes Persicarieae and Polygoneae. Furthermore,Koenigia and sect. Aconogonon composed a monophyletic group with a close relationship to sect. Bistorta.
Phylogenetic analyses of 32 species of Polygonum L. and related genera were conducted on the basis of nrDNA ITS sequences using maximum parsimony. Results suggested that Polygonum did not constitute a monophyletic group,and that one monophyletic clade of Fagopyrum and Parapteropyrum named tribe Fagopyreae was placed outside the two major clades corresponding to tribes Persicarieae and Polygoneae. Furthermore,Koenigia and sect. Aconogonon composed a monophyletic group with a close relationship to sect. Bistorta.
2014, 32(3): 236-239.
DOI: 10.3724/SP.J.1142.2014.30236
Abstract：
On the basis of the literature and specimens, we conducted a systematic study on the distribution of Cephaloziella in Guizhou. Eight species and one variety of Cephaloziella were confirmed to occur in Guizhou Province, China. Among them, Cephaloziella spinicaulis is a new addition to the province, which is described and illustrated in detail in this article. A key to all species of this genus in Guizhou and its distribution are provided.
On the basis of the literature and specimens, we conducted a systematic study on the distribution of Cephaloziella in Guizhou. Eight species and one variety of Cephaloziella were confirmed to occur in Guizhou Province, China. Among them, Cephaloziella spinicaulis is a new addition to the province, which is described and illustrated in detail in this article. A key to all species of this genus in Guizhou and its distribution are provided.
2014, 32(3): 240-250.
DOI: 10.3724/SP.J.1142.2014.30240
Abstract：
To expand the application of molecular markers in the analysis and identification of oat germplasm resources, EST-SSR markers were developed and utilized using publicly available oat EST data. After splice and redundancy check, 11618 sequences were obtained, and 556 ESTs containing 595 microsatellites loci were selected and assembled from 25376 oat EST sequences. Firstly, 50 primers were designed based on 556 ESTs, and 40 primers were screened. The amplified products were tested and sequenced using four primer pairs on five oat germplasm resources. The results showed the polymorphisms of bands were caused by differences in SSR. Forty effective primer pairs were tested on the genetic diversity of 15 hexaploid oat germplasm resources, and the study of transferability was analyzed among oat species. Eighty-nine loci were successfully amplified in 15 hexaploid oat germplasm resources, with an average of 2.23 loci per primer pair. Based on genetic similarity coefficient (Dice=0.93), the UPGMA dendrogram grouped 15 hexaploid oat germplasm resources into three clusters. The 15 germplasm resources were clustered according to species, and were sub-clustered following geographic origin. The EST-SSR primers showed higher availability on the study of chromosome ploidy of 31 unknown oat germplasm resources. Results showed some diploids and tetraploids of oat germplasm resources were tested in the genetic analysis of 31 oat germplasm resources. This study proved that EST-SSRs are valuable for genetic analysis, linkage mapping and transferability study among oat species. The EST-SSRs also proved useful in discriminating different species and different genome ploidy in oat.
To expand the application of molecular markers in the analysis and identification of oat germplasm resources, EST-SSR markers were developed and utilized using publicly available oat EST data. After splice and redundancy check, 11618 sequences were obtained, and 556 ESTs containing 595 microsatellites loci were selected and assembled from 25376 oat EST sequences. Firstly, 50 primers were designed based on 556 ESTs, and 40 primers were screened. The amplified products were tested and sequenced using four primer pairs on five oat germplasm resources. The results showed the polymorphisms of bands were caused by differences in SSR. Forty effective primer pairs were tested on the genetic diversity of 15 hexaploid oat germplasm resources, and the study of transferability was analyzed among oat species. Eighty-nine loci were successfully amplified in 15 hexaploid oat germplasm resources, with an average of 2.23 loci per primer pair. Based on genetic similarity coefficient (Dice=0.93), the UPGMA dendrogram grouped 15 hexaploid oat germplasm resources into three clusters. The 15 germplasm resources were clustered according to species, and were sub-clustered following geographic origin. The EST-SSR primers showed higher availability on the study of chromosome ploidy of 31 unknown oat germplasm resources. Results showed some diploids and tetraploids of oat germplasm resources were tested in the genetic analysis of 31 oat germplasm resources. This study proved that EST-SSRs are valuable for genetic analysis, linkage mapping and transferability study among oat species. The EST-SSRs also proved useful in discriminating different species and different genome ploidy in oat.
2014, 32(3): 251-258.
DOI: 10.3724/SP.J.1142.2014.30251
Abstract：
Asarina procumbens, Scrophulariaceae, is a perennial vine and good ornamental plant for vertical greening in the garden. However, when the leaves of A.procumbens become dry and abscised after senescing, the bare tendrils greatly reduce its ornamental value. AtNAP is a NAC family transcription factor gene that plays a key role in regulating leaf senescence in Arabidopsis. In this study, ApNAP, a homologous gene of AtNAP, was cloned from A.procumbens senescent leaves by RT-PCR and RACE. Results showed that the ApNAP gene was located in the nucleus and had a total length of 1341 bp with an open reading frame of 936 bp, encoding 311 amino acids, of which the relative molecular weight was 35.21 kD and the isoelectric point was 9.13. The length of the genome was 1526 bp with two introns and three exons. Multiple sequence alignment indicated that the ApNAP gene was a NAC transcription factor. Phylogenetic analysis indicated that the ApNAP gene belonged to the NAP subfamily and shared highest similarity with AtNAM in Arabidopsis. The results of real-time qPCR showed that the expression level of ApNAP was increased under treatments induced by natural and dark-induced senescence, indicating that it was involved in the regulation of the leaf senescent process of A.procumbens. The isolation and cloning of ApNAP had an important value in delaying leaf senescence and improving the greening value of A.procumbens.
Asarina procumbens, Scrophulariaceae, is a perennial vine and good ornamental plant for vertical greening in the garden. However, when the leaves of A.procumbens become dry and abscised after senescing, the bare tendrils greatly reduce its ornamental value. AtNAP is a NAC family transcription factor gene that plays a key role in regulating leaf senescence in Arabidopsis. In this study, ApNAP, a homologous gene of AtNAP, was cloned from A.procumbens senescent leaves by RT-PCR and RACE. Results showed that the ApNAP gene was located in the nucleus and had a total length of 1341 bp with an open reading frame of 936 bp, encoding 311 amino acids, of which the relative molecular weight was 35.21 kD and the isoelectric point was 9.13. The length of the genome was 1526 bp with two introns and three exons. Multiple sequence alignment indicated that the ApNAP gene was a NAC transcription factor. Phylogenetic analysis indicated that the ApNAP gene belonged to the NAP subfamily and shared highest similarity with AtNAM in Arabidopsis. The results of real-time qPCR showed that the expression level of ApNAP was increased under treatments induced by natural and dark-induced senescence, indicating that it was involved in the regulation of the leaf senescent process of A.procumbens. The isolation and cloning of ApNAP had an important value in delaying leaf senescence and improving the greening value of A.procumbens.
2014, 32(3): 259-264.
DOI: 10.3724/SP.J.1142.2014.30259
Abstract：
The number of stigma pollen genotypes is often related to fruit maturation and seed product in many angiosperms species. However, there is conflicting evidence that increasing pollen diversity can enhance plant fecundity. The present work examined whether genetic diversity of pollen (1, 2, 3 and 4 donors) affected plant fecundity in Xanthoceras sorbifolium, a self-incompatible species. Results showed that increasing the diversity of compatible pollen enhanced the mean number of fruit in an inflorescence and seed number per fruit and mean seed weight. The highest mean number of fruits in an inflorescence, the highest mean number of seeds per fruit, and the highest mean weight of seeds were produced by four, three and three compatible donors, respectively. If mixed pollen donors contained self-pollen, all fruits were aborted. In addition to diversity of pollen genotypes, recipient genotypes also affected female reproductive success. The present results suggest that greater attention to high diversity varieties may help maintain or enhance fruit and seed production in X.sorbifolium. The efffect of pollen genetic diversity, maternal mate choice and selective fruit abortion were discussed in this paper.
The number of stigma pollen genotypes is often related to fruit maturation and seed product in many angiosperms species. However, there is conflicting evidence that increasing pollen diversity can enhance plant fecundity. The present work examined whether genetic diversity of pollen (1, 2, 3 and 4 donors) affected plant fecundity in Xanthoceras sorbifolium, a self-incompatible species. Results showed that increasing the diversity of compatible pollen enhanced the mean number of fruit in an inflorescence and seed number per fruit and mean seed weight. The highest mean number of fruits in an inflorescence, the highest mean number of seeds per fruit, and the highest mean weight of seeds were produced by four, three and three compatible donors, respectively. If mixed pollen donors contained self-pollen, all fruits were aborted. In addition to diversity of pollen genotypes, recipient genotypes also affected female reproductive success. The present results suggest that greater attention to high diversity varieties may help maintain or enhance fruit and seed production in X.sorbifolium. The efffect of pollen genetic diversity, maternal mate choice and selective fruit abortion were discussed in this paper.
Abstract：
To understand the distribution and changes of sugars and acids in peach fruit during the growing stages, their distribution and concentrations in vacuoles, cytoplasm, and free space in fruits of Prunus persicae‘Hakuho’ at different growing stages were studied by compartmental analysis, and their contribution to fruit sweetness and sourness was assessed. Results showed that the concentration of sugars (sucrose, glucose, fructose and sorbitol) and acids (malate, citrate, quinate and shikimate) in vacuoles, cytoplasm and free space of mature fruits was 27.3, 11.6 and 9.0 mg/g, and 2.09, 0.94 and 0.35 mg/g, respectively, and was 0.97, 2.2 and 2.3 mg/g, and 0.25, 0.44 and 0.82 mg/g in immature fruit, respectively. Sweetness and sourness was less affected by the different distribution of sugar and acid in cells in immature fruit than that in mature fruit. There was an obvious concentration gradient between the vacuoles, cytoplasm and free space for sugars and acids, and the differences in the intracellular distribution of sugar and acid may be responsible for the changes of fruit sweetness.
To understand the distribution and changes of sugars and acids in peach fruit during the growing stages, their distribution and concentrations in vacuoles, cytoplasm, and free space in fruits of Prunus persicae‘Hakuho’ at different growing stages were studied by compartmental analysis, and their contribution to fruit sweetness and sourness was assessed. Results showed that the concentration of sugars (sucrose, glucose, fructose and sorbitol) and acids (malate, citrate, quinate and shikimate) in vacuoles, cytoplasm and free space of mature fruits was 27.3, 11.6 and 9.0 mg/g, and 2.09, 0.94 and 0.35 mg/g, respectively, and was 0.97, 2.2 and 2.3 mg/g, and 0.25, 0.44 and 0.82 mg/g in immature fruit, respectively. Sweetness and sourness was less affected by the different distribution of sugar and acid in cells in immature fruit than that in mature fruit. There was an obvious concentration gradient between the vacuoles, cytoplasm and free space for sugars and acids, and the differences in the intracellular distribution of sugar and acid may be responsible for the changes of fruit sweetness.
2014, 32(3): 273-278.
DOI: 10.3724/SP.J.1142.2014.30273
Abstract：
To study the physiological function changes during bamboo flowering, and explore the methods of rejuvenation after flowering, we selected different Phyllostachys iridescens non-flowering bamboo blades, heteromorphic blades and normal blades from flowering bamboo stands, and observed their anatomical structures and photosynthetic parameters. Results showed that during the phase change from vegetative to reproductive growth, the blades of flowering bamboo appeared smaller and thinner and the distance between adjacent vascular bundles tended to increase, while the vascular bundle transverse area and stomatal density decreased. The overall thickness, upper epidermis thickness, vascular bundle transverse area and stomatal density of the heteromorphic blades were 71.59%, 87.40%, 77.79% and 73.56% that of the non-flowering bamboo blades, respectively, while the distances between adjacent vascular bundles were 19.34% larger than that of non-flowering bamboo blades, leading to reductions in photosynthesis and transpiration of flowering bamboo blades. Light-response parameters such as the light saturation point, apparent quantum yield, and maximum photosynthetic rates of heteromorphic blades were 67%, 40.5% and 8.27% that of non-flowering blades, respectively, 900, 0.015 and 1.22 μmol·m-2·s-1, and the light compensation point of the heteromorphic blades (85.11 μmol·m-2·s-1) was 208.5% higher than that of non-flowering blades. However, the light-response parameters of normal blades of flowering bamboo were somewhere in between. The weakened leaf structure and function alienation exacerbated by the flowering bamboo eventually led to perennial bamboos, which could not grow normally after flowering.
To study the physiological function changes during bamboo flowering, and explore the methods of rejuvenation after flowering, we selected different Phyllostachys iridescens non-flowering bamboo blades, heteromorphic blades and normal blades from flowering bamboo stands, and observed their anatomical structures and photosynthetic parameters. Results showed that during the phase change from vegetative to reproductive growth, the blades of flowering bamboo appeared smaller and thinner and the distance between adjacent vascular bundles tended to increase, while the vascular bundle transverse area and stomatal density decreased. The overall thickness, upper epidermis thickness, vascular bundle transverse area and stomatal density of the heteromorphic blades were 71.59%, 87.40%, 77.79% and 73.56% that of the non-flowering bamboo blades, respectively, while the distances between adjacent vascular bundles were 19.34% larger than that of non-flowering bamboo blades, leading to reductions in photosynthesis and transpiration of flowering bamboo blades. Light-response parameters such as the light saturation point, apparent quantum yield, and maximum photosynthetic rates of heteromorphic blades were 67%, 40.5% and 8.27% that of non-flowering blades, respectively, 900, 0.015 and 1.22 μmol·m-2·s-1, and the light compensation point of the heteromorphic blades (85.11 μmol·m-2·s-1) was 208.5% higher than that of non-flowering blades. However, the light-response parameters of normal blades of flowering bamboo were somewhere in between. The weakened leaf structure and function alienation exacerbated by the flowering bamboo eventually led to perennial bamboos, which could not grow normally after flowering.
2014, 32(3): 279-288.
DOI: 10.3724/SP.J.1142.2014.30279
Abstract：
To provide valuable references for the evaluation and screening, in-depth development, and comprehensive utilization of oil plants of Lauraceae, we investigated the existing oil plants of this family in China. Based on investigation data, the oil content, fatty acid composition, iodine value and physicochemical properties of methyl esters (MEs) of 74 samples (9 genera and 47 species) were analyzed. According to the evaluation standard of non-food biodiesel plants (NFBP), 19 samples (9 genera and 18 species) with development and utilization value were preliminarily screened.
To provide valuable references for the evaluation and screening, in-depth development, and comprehensive utilization of oil plants of Lauraceae, we investigated the existing oil plants of this family in China. Based on investigation data, the oil content, fatty acid composition, iodine value and physicochemical properties of methyl esters (MEs) of 74 samples (9 genera and 47 species) were analyzed. According to the evaluation standard of non-food biodiesel plants (NFBP), 19 samples (9 genera and 18 species) with development and utilization value were preliminarily screened.
2014, 32(3): 289-296.
DOI: 10.3724/SP.J.1142.2014.30289
Abstract：
The study of medicinal plant resources and their diversity is important for future sustainable development and conservation. Based on field work, sample collection, herbarium inspection, and literature search, a total of 651 medicinal vascular species were recorded in Tengchong County, Yunnan Province. The species belonged to 450 genera and 153 families, among which pteridophyte had 32 families, 51 genera and 68 species; gymnosperms had 3 families, 3 genera and 4 species; and angiosperms had 118 families, 396 genera and 579 species. Dominant species were from the families of Labiatae, Compositae and Leguminosae. The number of plants that used whole plantlets as the medicinal parts was largest, followed by radices and rhizomes. Most plants found in Tengchong County were used as antipyretics, antirheumatics and drugs for promoting blood circulation and removing blood stasis. Based on the above analysis, strategies for resources protection and sustainable exploitation are discussed in this paper.
The study of medicinal plant resources and their diversity is important for future sustainable development and conservation. Based on field work, sample collection, herbarium inspection, and literature search, a total of 651 medicinal vascular species were recorded in Tengchong County, Yunnan Province. The species belonged to 450 genera and 153 families, among which pteridophyte had 32 families, 51 genera and 68 species; gymnosperms had 3 families, 3 genera and 4 species; and angiosperms had 118 families, 396 genera and 579 species. Dominant species were from the families of Labiatae, Compositae and Leguminosae. The number of plants that used whole plantlets as the medicinal parts was largest, followed by radices and rhizomes. Most plants found in Tengchong County were used as antipyretics, antirheumatics and drugs for promoting blood circulation and removing blood stasis. Based on the above analysis, strategies for resources protection and sustainable exploitation are discussed in this paper.
2014, 32(3): 297-303.
DOI: 10.3724/SP.J.1142.2014.30297
Abstract：
DREB2s is a plant-specific transcription factor, which belongs to the AP2/EREBP transcription factor family. DREB2s plays an important role in regulating abiotic stress (drought, high salinity, low temperature, and high temperature) responsive gene expression. The genetic structure of DREB2 transcription factor is slightly different, as is its response to abiotic stress. We reviewed the structural features of the DREB2s proteins and their responses to various abiotic stresses, and the recent advances in the molecular mechanism of DREB2s at the level of transcription and post transcriptional regulation of gene expression, which will provide a theoretical basis for understanding the gene function, molecular mechanism and genetic engineering approach to improving plant abiotic stress resistance of DREB2s.
DREB2s is a plant-specific transcription factor, which belongs to the AP2/EREBP transcription factor family. DREB2s plays an important role in regulating abiotic stress (drought, high salinity, low temperature, and high temperature) responsive gene expression. The genetic structure of DREB2 transcription factor is slightly different, as is its response to abiotic stress. We reviewed the structural features of the DREB2s proteins and their responses to various abiotic stresses, and the recent advances in the molecular mechanism of DREB2s at the level of transcription and post transcriptional regulation of gene expression, which will provide a theoretical basis for understanding the gene function, molecular mechanism and genetic engineering approach to improving plant abiotic stress resistance of DREB2s.
2014, 32(3): 304-314.
DOI: 10.3724/SP.J.1142.2014.30304
Abstract：
Aquaporins are important functional proteins in plants, which not only transport water between different plant tissues but also participate in other nutrient transmembrane movement. Aquaporins also play a significant role in many physiological processes such as photosynthesis, plant growth and development, immune response, and signal transduction. We reviewed recent research progress on the structural features, classification, and physiological functions, as well as transcriptional and post-transcriptional regulation of aquaporins, and provided good study prospects on the processes plant AQPs take part in for plant growth. Detailed research on aquaporins could contribute to a better understanding of the physiological functions and molecular mechanisms of nutrient movement in plants, thus providing a theoretical base for growth and development regulation in crop production.
Aquaporins are important functional proteins in plants, which not only transport water between different plant tissues but also participate in other nutrient transmembrane movement. Aquaporins also play a significant role in many physiological processes such as photosynthesis, plant growth and development, immune response, and signal transduction. We reviewed recent research progress on the structural features, classification, and physiological functions, as well as transcriptional and post-transcriptional regulation of aquaporins, and provided good study prospects on the processes plant AQPs take part in for plant growth. Detailed research on aquaporins could contribute to a better understanding of the physiological functions and molecular mechanisms of nutrient movement in plants, thus providing a theoretical base for growth and development regulation in crop production.
