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Zou Z, Zheng Y, Chang L, Zou L, Zhang L, Min Y, Zhao Y. TIP aquaporins in Cyperus esculentus: genome-wide identification, expression profiles, subcellular localizations, and interaction patterns. BMC PLANT BIOLOGY 2024; 24:298. [PMID: 38632542 PMCID: PMC11025170 DOI: 10.1186/s12870-024-04969-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 03/31/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Tonoplast intrinsic proteins (TIPs), which typically mediate water transport across vacuolar membranes, play an essential role in plant growth, development, and stress responses. However, their characterization in tigernut (Cyperus esculentus L.), an oil-bearing tuber plant of the Cyperaceae family, is still in the infancy. RESULTS In this study, a first genome-wide characterization of the TIP subfamily was conducted in tigernut, resulting in ten members representing five previously defined phylogenetic groups, i.e., TIP1-5. Although the gene amounts are equal to that present in two model plants Arabidopsis and rice, the group composition and/or evolution pattern were shown to be different. Except for CeTIP1;3 that has no counterpart in both Arabidopsis and rice, complex orthologous relationships of 1:1, 1:2, 1:3, 2:1, and 2:2 were observed. Expansion of the CeTIP subfamily was contributed by whole-genome duplication (WGD), transposed, and dispersed duplications. In contrast to the recent WGD-derivation of CeTIP3;1/-3;2, synteny analyses indicated that TIP4 and - 5 are old WGD repeats of TIP2, appearing sometime before monocot-eudicot divergence. Expression analysis revealed that CeTIP genes exhibit diverse expression profiles and are subjected to developmental and diurnal fluctuation regulation. Moreover, when transiently overexpressed in tobacco leaves, CeTIP1;1 was shown to locate in the vacuolar membrane and function in homo/heteromultimer, whereas CeTIP2;1 is located in the cell membrane and only function in heteromultimer. Interestingly, CeTIP1;1 could mediate the tonoplast-localization of CeTIP2;1 via protein interaction, implying complex regulatory patterns. CONCLUSIONS Our findings provide a global view of CeTIP genes, which provide valuable information for further functional analysis and genetic improvement through manipulating key members in tigernut.
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Affiliation(s)
- Zhi Zou
- National Key Laboratory for Tropical Crop Breeding/Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Institute of Tropical Biosciences and Biotechnology/Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, P. R. China.
| | - Yujiao Zheng
- National Key Laboratory for Tropical Crop Breeding/Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Institute of Tropical Biosciences and Biotechnology/Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, P. R. China
| | - Lili Chang
- National Key Laboratory for Tropical Crop Breeding/Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Institute of Tropical Biosciences and Biotechnology/Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, P. R. China
| | - Liangping Zou
- National Key Laboratory for Tropical Crop Breeding/Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Institute of Tropical Biosciences and Biotechnology/Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, P. R. China
| | - Li Zhang
- Hubei Provincial Key Laboratory for Protection and Application of Special Plants in Wuling Area of China, College of Life Science, South-Central Minzu University, Wuhan, Hubei, 430074, P. R. China
| | - Yi Min
- Hainan University, Haikou, Hainan, 570228, P. R. China.
| | - Yongguo Zhao
- National Key Laboratory for Tropical Crop Breeding/Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Institute of Tropical Biosciences and Biotechnology/Sanya Research Institute of Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, P. R. China.
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, P. R. China.
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Liu Q, Zhao Y, Rahman S, She M, Zhang J, Yang R, Islam S, O'Hara G, Varshney RK, Liu H, Ma H, Ma W. The putative vacuolar processing enzyme gene TaVPE3cB is a candidate gene for wheat stem pith-thickness. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:138. [PMID: 37233825 DOI: 10.1007/s00122-023-04372-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 04/27/2023] [Indexed: 05/27/2023]
Abstract
KEY MESSAGE The vacuolar processing enzyme gene TaVPE3cB is identified as a candidate gene for a QTL of wheat pith-thickness on chromosome 3B by BSR-seq and differential expression analyses. The high pith-thickness (PT) of the wheat stem could greatly enhance stem mechanical strength, especially the basal internodes which support the heavier upper part, such as upper stems, leaves and spikes. A QTL for PT in wheat was previously discovered on 3BL in a double haploid population of 'Westonia' × 'Kauz'. Here, a bulked segregant RNA-seq analysis was applied to identify candidate genes and develop associated SNP markers for PT. In this study, we aimed at screening differentially expressed genes (DEGs) and SNPs in the 3BL QTL interval. Sixteen DEGs were obtained based on BSR-seq and differential expression analyses. Twenty-four high-probability SNPs in eight genes were identified by comparing the allelic polymorphism in mRNA sequences between the high PT and low PT samples. Among them, six genes were confirmed to be associated with PT by qRT-PCR and sequencing. A putative vacuolar processing enzyme gene TaVPE3cB was screened out as a potential PT candidate gene in Australian wheat 'Westonia'. A robust SNP marker associated with TaVPE3cB was developed, which can assist in the introgression of TaVPE3cB.b in wheat breeding programs. In addition, we also discussed the function of other DEGs which may be related to pith development and programmed cell death (PCD). A five-level hierarchical regulation mechanism of stem pith PCD in wheat was proposed.
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Affiliation(s)
- Qier Liu
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
- Provincial Key Laboratory of Agrobiology, and Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
| | - Yun Zhao
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
- Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, 050035, People's Republic of China
| | - Shanjida Rahman
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
| | - Maoyun She
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
| | - Jingjuan Zhang
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
| | - Rongchang Yang
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
| | - Shahidul Islam
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
| | - Graham O'Hara
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
| | - Rajeev K Varshney
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
| | - Hang Liu
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia
| | - Hongxiang Ma
- Provincial Key Laboratory of Agrobiology, and Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
| | - Wujun Ma
- Centre for Crop and Food Innovation, Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, 6150, Australia.
- College of Agronomy, Qingdao Agriculture University, Qingdao, 266109, People's Republic of China.
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3
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Salvatierra A, Mateluna P, Toro G, Solís S, Pimentel P. Genome-Wide Identification and Gene Expression Analysis of Sweet Cherry Aquaporins ( Prunus avium L.) under Abiotic Stresses. Genes (Basel) 2023; 14:genes14040940. [PMID: 37107698 PMCID: PMC10138167 DOI: 10.3390/genes14040940] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 04/13/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Aquaporins (AQPs) are integral transmembrane proteins well known as channels involved in the mobilization of water, small uncharged molecules and gases. In this work, the main objective was to carry out a comprehensive study of AQP encoding genes in Prunus avium (cv. Mazzard F12/1) on a genome-wide scale and describe their transcriptional behaviors in organs and in response to different abiotic stresses. A total of 28 non-redundant AQP genes were identified in Prunus spp. Genomes, which were phylogenetically grouped into five subfamilies (seven PIPs, eight NIPs, eight TIPs, three SIPs and two XIPs). Bioinformatic analyses revealed a high synteny and remarkable conservation of structural features among orthologs of different Prunus genomes. Several cis-acting regulatory elements (CREs) related to stress regulation were detected (ARE, WRE3, WUN, STRE, LTR, MBS, DRE, AT-rich and TC-rich). The above could be accounting for the expression variations associated with plant organs and, especially, each abiotic stress analyzed. Gene expressions of different PruavAQPs were shown to be preferentially associated with different stresses. PruavXIP2;1 and PruavXIP1;1 were up-regulated in roots at 6 h and 72 h of hypoxia, and in PruavXIP2;1 a slight induction of expression was also detected in leaves. Drought treatment strongly down-regulated PruavTIP4;1 but only in roots. Salt stress exhibited little or no variation in roots, except for PruavNIP4;1 and PruavNIP7;1, which showed remarkable gene repression and induction, respectively. Interestingly, PruavNIP4;1, the AQP most expressed in cherry roots subjected to cold temperatures, also showed this pattern in roots under high salinity. Similarly, PruavNIP4;2 consistently was up-regulated at 72 h of heat and drought treatments. From our evidence is possible to propose candidate genes for the development of molecular markers for selection processes in breeding programs for rootstocks and/or varieties of cherry.
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Affiliation(s)
- Ariel Salvatierra
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
| | - Patricio Mateluna
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
| | - Guillermo Toro
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
| | - Simón Solís
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
| | - Paula Pimentel
- Centro de Estudios Avanzados en Fruticultura (CEAF), Camino Las Parcelas 882, km 105 Ruta 5 Sur, Sector Los Choapinos, Rengo 2940000, Chile
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Inden T, Hoshino A, Otagaki S, Matsumoto S, Shiratake K. Genome-Wide Analysis of Aquaporins in Japanese Morning Glory ( Ipomoea nil). PLANTS (BASEL, SWITZERLAND) 2023; 12:1511. [PMID: 37050139 PMCID: PMC10096635 DOI: 10.3390/plants12071511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/14/2023] [Accepted: 03/28/2023] [Indexed: 06/19/2023]
Abstract
The aquaporin (AQP) family, also called water channels or major intrinsic proteins, facilitate water transport. AQPs also transport low-molecular-weight solutes, including boric acid, glycerol, urea, and ammonia. Since plants are sessile, water homeostasis is crucial. Therefore, plants have developed diverse AQP variants at higher expression levels than animals. For example, 35 and 33 AQPs have been identified in Arabidopsis and rice, respectively. In the present study, we identified AQPs in morning glory (Ipomoea nil), which has been widely used as a model plant in research on flowering and floral morphology. The importance of AQPs in the opening of morning glory flowers has been reported. In the morning glory genome, 44 AQPs were identified, and their characteristics were analyzed. A phylogenetic analysis revealed five AQP subfamilies in morning glory: plasma membrane-intrinsic proteins (PIPs), tonoplast-intrinsic proteins (TIPs), nodulin 26-like intrinsic proteins (NIPs), small basic intrinsic proteins (SIPs), and X-intrinsic proteins (XIPs). Further, transport substrates of morning glory AQPs were estimated based on their homology to the known AQPs in other plant species and their corresponding amino acid motifs that possess permeability pores. It was expected that PIPs are likely to transport water, carbon dioxide, and hydrogen peroxide; TIPs are likely transport water, hydrogen peroxide, ammonia, urea, and boric acid; NIPs are likely transport water, boric acid, ammonia, glycerol, and formamide; and XIPs are likely to transport water, hydrogen peroxide, and glycerol. Overall, these results suggest that AQPs are involved in water and nutrient transport in Japanese morning glory. An in silico gene expression analysis suggested the importance of AQPs in flower opening, water or nutrient uptakes from the soil to roots, and photosynthesis in morning glory. Our findings provide fundamental information that enables further study into the importance of AQPs in morning glory, including their roles in flower opening and other physiological events.
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Affiliation(s)
- Tamami Inden
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Atsushi Hoshino
- National Institute for Basic Biology, Okazaki 444-8585, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI, Okazaki 444-8585, Japan
| | - Shungo Otagaki
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Shogo Matsumoto
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Katsuhiro Shiratake
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
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Zaghdoud C, Ollio I, Solano CJ, Ochoa J, Suardiaz J, Fernández JA, Martínez Ballesta MDC. Red LED Light Improves Pepper ( Capsicum annuum L.) Seed Radicle Emergence and Growth through the Modulation of Aquaporins, Hormone Homeostasis, and Metabolite Remobilization. Int J Mol Sci 2023; 24:ijms24054779. [PMID: 36902208 PMCID: PMC10002511 DOI: 10.3390/ijms24054779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Red LED light (R LED) is an efficient tool to improve seed germination and plant growth under controlled environments since it is more readily absorbed by photoreceptors' phytochromes compared to other wavelengths of the spectrum. In this work, the effect of R LED on the radicle emergence and growth (Phase III of germination) of pepper seeds was evaluated. Thus, the impact of R LED on water transport through different intrinsic membrane proteins, via aquaporin (AQP) isoforms, was determined. In addition, the remobilization of distinct metabolites such as amino acids, sugars, organic acids, and hormones was analysed. R LED induced a higher germination speed index, regulated by an increased water uptake. PIP2;3 and PIP2;5 aquaporin isoforms were highly expressed and could contribute to a faster and more effective hydration of embryo tissues, leading to a reduction of the germination time. By contrast, TIP1;7, TIP1;8, TIP3;1 and TIP3;2 gene expressions were reduced in R LED-treated seeds, pointing to a lower need for protein remobilization. NIP4;5 and XIP1;1 were also involved in radicle growth but their role needs to be elucidated. In addition, R LED induced changes in amino acids and organic acids as well as sugars. Therefore, an advanced metabolome oriented to a higher energetic metabolism was observed, conditioning better seed germination performance together with a rapid water flux.
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Affiliation(s)
- Chokri Zaghdoud
- Bureau de Transfert de Technologie (BuTT), Université de Gafsa, Gafsa 2112, Tunisia
| | - Irene Ollio
- Ingeniería Agronómica, Technical University of Cartagena, Paseo Alfonso XIII 48, E-30203 Cartagena, Spain
- Recursos Fitogenéticos, Instituto de Biotecnología Vegetal, Edificio I+D+i, E-30202 Cartagena, Spain
| | - Cristóbal J. Solano
- División of Innovation in Telematic Systems and Electronic Technology (DINTEL), Technical University of Cartagena, Campus Muralla del Mar, s/n, E-30202 Cartagena, Spain
| | - Jesús Ochoa
- Ingeniería Agronómica, Technical University of Cartagena, Paseo Alfonso XIII 48, E-30203 Cartagena, Spain
- Recursos Fitogenéticos, Instituto de Biotecnología Vegetal, Edificio I+D+i, E-30202 Cartagena, Spain
| | - Juan Suardiaz
- División of Innovation in Telematic Systems and Electronic Technology (DINTEL), Technical University of Cartagena, Campus Muralla del Mar, s/n, E-30202 Cartagena, Spain
| | - Juan A. Fernández
- Ingeniería Agronómica, Technical University of Cartagena, Paseo Alfonso XIII 48, E-30203 Cartagena, Spain
- Recursos Fitogenéticos, Instituto de Biotecnología Vegetal, Edificio I+D+i, E-30202 Cartagena, Spain
| | - María del Carmen Martínez Ballesta
- Ingeniería Agronómica, Technical University of Cartagena, Paseo Alfonso XIII 48, E-30203 Cartagena, Spain
- Recursos Fitogenéticos, Instituto de Biotecnología Vegetal, Edificio I+D+i, E-30202 Cartagena, Spain
- Correspondence: ; Tel.: +34-968-325457
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6
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Khan R, Ma X, Hussain Q, Chen K, Farooq S, Asim M, Ren X, Shah S, Shi Y. Transcriptome and anatomical studies reveal alterations in leaf thickness under long-term drought stress in tobacco. JOURNAL OF PLANT PHYSIOLOGY 2023; 281:153920. [PMID: 36680840 DOI: 10.1016/j.jplph.2023.153920] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Drought is one of the foremost environmental factors that limit the growth of plants. Leaf thickness (LT) is an important quantitative trait in plant physiology. The experiment was carried out in a growth room and the plants were divided into two groups such as well-watered and drought-stressed. This work investigated leaf growth in terms of leaf surface growth and expansion rate, leaf stomata traits, LT, anticlinal growth, and leaf cell layers. The results showed that the leaf area and leaf surface expansion rate were decreased by drought stress (DS). Similarly, LT, anticlinal expansion rate, palisade and spongy tissue thickness, and their related expansion rates were also decreased at different days' time points (DTP) of DS. However, a steady increase was observed in the aforementioned parameters after 12 DTP of DS. The stomatal density increased while stomata size decreased at 3 DTP and 12 DTP (low leaf water potential and relative leaf water content at these time points) and vice versa at 24 DTP compared with the well-watered plants indicating adaptations in these traits in response to DS, and thus the leaf water status played a role in the regulation of leaf stomata traits. The cell length decreased in the upper epidermis, palisade and spongy tissues by DS up to 12 DTP led to lower LT while an increase was observed after 12 DTP that resulted in higher LT. The increase in the LT was supported by the upregulation of starch and sucrose metabolism, glycerolipid metabolism, protein processing in endoplasmic reticulum pathways at 18 DTP along with the differentially expressed genes induced that were related to cell wall remodeling (cellulose, expansin, xyloglucans) and cell expansion (auxin response factors and aquaporin). The results explain the response of leaf thickness to drought stress and show alterations in LT and leaf stomatal traits. This study might serve as a valuable source of gene information for functional studies and provide a theoretical basis to understand leaf growth in terms of leaf anatomy and leaf stomatal traits under drought stress.
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Affiliation(s)
- Rayyan Khan
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Xinghua Ma
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China.
| | - Quaid Hussain
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, 666 Wusu Street, Hangzhou, 311300, China
| | - Keling Chen
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Saqib Farooq
- Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety, Agricultural College of Guangxi University, Nanning, 530004, China
| | - Muhammad Asim
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Xiaochun Ren
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Shahen Shah
- Department of Agronomy, The University of Agriculture, Peshawar, 25130, Khyber Pakhtunkhwa, Pakistan
| | - Yi Shi
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China.
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Comparative transcriptomics reveals commonalities and differences in the genetic underpinnings of a floral dimorphism. Sci Rep 2022; 12:20771. [PMID: 36456708 PMCID: PMC9715534 DOI: 10.1038/s41598-022-25132-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022] Open
Abstract
Distyly, a floral dimorphism associated with heteromorphic self-incompatibility and controlled by the S-locus supergene, evolved independently multiple times. Comparative analyses of the first transcriptome atlas for the main distyly model, Primula veris, with other distylous species produced the following findings. A set of 53 constitutively expressed genes in P. veris did not include any of the housekeeping genes commonly used to normalize gene expression in qPCR experiments. The S-locus gene CYPT acquired its role in controlling style elongation via a change in expression profile. Comparison of genes differentially expressed between floral morphs revealed that brassinosteroids and auxin are the main hormones controlling style elongation in P. veris and Fagopyrum esculentum, respectively. Furthermore, shared biochemical pathways might underlie the expression of distyly in the distantly related P. veris, F. esculentum and Turnera subulata, suggesting a degree of correspondence between evolutionary convergence at phenotypic and molecular levels. Finally, we provide the first evidence supporting the previously proposed hypothesis that distyly supergenes of distantly related species evolved via the recruitment of genes related to the phytochrome-interacting factor (PIF) signaling network. To conclude, this is the first study that discovered homologous genes involved in the control of distyly in distantly related taxa.
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The Role of Aquaporins in Plant Growth under Conditions of Oxygen Deficiency. Int J Mol Sci 2022; 23:ijms231710159. [PMID: 36077554 PMCID: PMC9456501 DOI: 10.3390/ijms231710159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/28/2022] [Accepted: 09/02/2022] [Indexed: 11/21/2022] Open
Abstract
Plants frequently experience hypoxia due to flooding caused by intensive rainfall or irrigation, when they are partially or completely submerged under a layer of water. In the latter case, some resistant plants implement a hypoxia avoidance strategy by accelerating shoot elongation, which allows lifting their leaves above the water surface. This strategy is achieved due to increased water uptake by shoot cells through water channels (aquaporins, AQPs). It remains a puzzle how an increased flow of water through aquaporins into the cells of submerged shoots can be achieved, while it is well known that hypoxia inhibits the activity of aquaporins. In this review, we summarize the literature data on the mechanisms that are likely to compensate for the decline in aquaporin activity under hypoxic conditions, providing increased water entry into cells and accelerated shoot elongation. These mechanisms include changes in the expression of genes encoding aquaporins, as well as processes that occur at the post-transcriptional level. We also discuss the involvement of hormones, whose concentration changes in submerged plants, in the control of aquaporin activity.
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Guo Z, Ma D, Li J, Wei M, Zhang L, Zhou L, Zhou X, He S, Wang L, Shen Y, Li QQ, Zheng HL. Genome-wide identification and characterization of aquaporins in mangrove plant Kandelia obovata and its role in response to the intertidal environment. PLANT, CELL & ENVIRONMENT 2022; 45:1698-1718. [PMID: 35141923 DOI: 10.1111/pce.14286] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 01/30/2022] [Indexed: 05/26/2023]
Abstract
Aquaporins (AQPs) play important roles in plant growth, development and tolerance to environmental stresses. To understand the role of AQPs in the mangrove plant Kandelia obovata, which has the ability to acquire water from seawater, we identified 34 AQPs in the K. obovata genome and analysed their structural features. Phylogenetic analysis revealed that KoAQPs are homologous to AQPs of Populus and Arabidopsis, which are evolutionarily conserved. The key amino acid residues were used to assess water-transport ability. Analysis of cis-acting elements in the promoters indicated that KoAQPs may be stress- and hormone-responsive. Subcellular localization of KoAQPs in yeast showed most KoAQPs function in the membrane system. That transgenic yeast with increased cell volume showed that some KoAQPs have significant water-transport activity, and the substrate sensitivity assay indicates that some KoAQPs can transport H2 O2 . The transcriptome data were used to analyze the expression patterns of KoAQPs in different tissues and developing fruits of K. obovata. In addition, real-time quantitative PCR analyses combined transcriptome data showed that KoAQPs have complex responses to environmental factors, including salinity, flooding and cold. Collectively, the transport of water and solutes by KoAQPs contributed to the adaptation of K. obovata to the coastal intertidal environment.
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Affiliation(s)
- Zejun Guo
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Dongna Ma
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Jing Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Mingyue Wei
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Ludan Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Lichun Zhou
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Xiaoxuan Zhou
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Shanshan He
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Lin Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Yingjia Shen
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Qingshun Quinn Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
- Graduate College of Biomedical Sciences, Western University of Health Sciences, Pomona, California, USA
| | - Hai-Lei Zheng
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, China
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10
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Liu C, Sun D, Zheng HX, Wang GB, Liu WS, Cao Y, Tang YT, Qiu RL. The limited exclusion and efficient translocation mediated by organic acids contribute to rare earth element hyperaccumulation in Phytolacca americana. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150335. [PMID: 34818777 DOI: 10.1016/j.scitotenv.2021.150335] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
Organic acids play an important role in metal tolerance, uptake, and translocation in hyperaccumulators. Phytolacca americana is a rare earth element (REE) hyperaccumulator, but the underlying mechanisms on REE tolerance and accumulation mediated by organic acids are poorly understood. Here, we reported for the first time the strategy of P. americana to enhance REE tolerance and accumulation through organic acids from root external secretion to internal biosynthesis. Different from the exclusion of heavy metal by organic acid in the typical plants, the results showed that oxalate secretion (0.3-0.6 μmol h-1 g-1 root DW) induced by yttrium (Y) could not prevent Y from entering the roots, resulting in excess Y uptake by P. americana. Yttrium stress also stimulated the accumulation of malate and citrate by 1.4- and 2.0-folds in the root cortex. Exogenous malate and citrate promoted the redistribution of Y from the root cell walls to the shoot by 30% and 21%, respectively. Based on comparative transcriptome analysis, 6-fold up-regulation was observed in PaNIP1;2, whose homology AtNIP1;2 is responsible for the transport of Al-malate in Arabidopsis. These results suggested that the promoted formation of Y-malate complexes within the roots potentially accelerated the transport of Y from P. americana roots to shoots through PaNIP1;2. Our study revealed the potential mechanism of organic acids in the external exclusion and internal detoxification and translocation of REE in P. americana roots, which provided a basis for improving the efficiency of REE phytoextraction.
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Affiliation(s)
- Chong Liu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Dan Sun
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Hong-Xiang Zheng
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Guo-Bao Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Wen-Shen Liu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China.
| | - Yue Cao
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China.
| | - Ye-Tao Tang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Rong-Liang Qiu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
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11
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Kang BH, Anderson CT, Arimura SI, Bayer E, Bezanilla M, Botella MA, Brandizzi F, Burch-Smith TM, Chapman KD, Dünser K, Gu Y, Jaillais Y, Kirchhoff H, Otegui MS, Rosado A, Tang Y, Kleine-Vehn J, Wang P, Zolman BK. A glossary of plant cell structures: Current insights and future questions. THE PLANT CELL 2022; 34:10-52. [PMID: 34633455 PMCID: PMC8846186 DOI: 10.1093/plcell/koab247] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/29/2021] [Indexed: 05/03/2023]
Abstract
In this glossary of plant cell structures, we asked experts to summarize a present-day view of plant organelles and structures, including a discussion of outstanding questions. In the following short reviews, the authors discuss the complexities of the plant cell endomembrane system, exciting connections between organelles, novel insights into peroxisome structure and function, dynamics of mitochondria, and the mysteries that need to be unlocked from the plant cell wall. These discussions are focused through a lens of new microscopy techniques. Advanced imaging has uncovered unexpected shapes, dynamics, and intricate membrane formations. With a continued focus in the next decade, these imaging modalities coupled with functional studies are sure to begin to unravel mysteries of the plant cell.
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Affiliation(s)
- Byung-Ho Kang
- School of Life Sciences, Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Charles T Anderson
- Department of Biology and Center for Lignocellulose Structure and Formation, The Pennsylvania State University, University Park, Pennsylvania 16802 USA
| | - Shin-ichi Arimura
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Emmanuelle Bayer
- Université de Bordeaux, CNRS, Laboratoire de Biogenèse Membranaire, UMR 5200, Villenave d'Ornon F-33140, France
| | - Magdalena Bezanilla
- Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire 03755, USA
| | - Miguel A Botella
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortifruticultura Subtropical y Mediterránea “La Mayora,” Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Málaga 29071, Spain
| | - Federica Brandizzi
- MSU-DOE Plant Research Lab, Michigan State University, East Lansing, Michigan 48824 USA
- Department of Plant Biology, Michigan State University, East Lansing, Michigan 48824, USA
- Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan 48824, USA
| | - Tessa M Burch-Smith
- Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - Kent D Chapman
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203, USA
| | - Kai Dünser
- Faculty of Biology, Chair of Molecular Plant Physiology (MoPP) University of Freiburg, Freiburg 79104, Germany
- Center for Integrative Biological Signalling Studies (CIBSS), University of Freiburg, Freiburg 79104, Germany
| | - Yangnan Gu
- Department of Plant and Microbial Biology, Innovative Genomics Institute, University of California, Berkeley, California 94720, USA
| | - Yvon Jaillais
- Laboratoire Reproduction et Développement des Plantes (RDP), Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Lyon, France
| | - Helmut Kirchhoff
- Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164, USA
| | - Marisa S Otegui
- Department of Botany and Center for Quantitative Cell Imaging, University of Wisconsin-Madison, Wisconsin 53706, USA
| | - Abel Rosado
- Department of Botany, University of British Columbia, Vancouver V6T1Z4, Canada
| | - Yu Tang
- Department of Plant and Microbial Biology, Innovative Genomics Institute, University of California, Berkeley, California 94720, USA
| | - Jürgen Kleine-Vehn
- Faculty of Biology, Chair of Molecular Plant Physiology (MoPP) University of Freiburg, Freiburg 79104, Germany
- Center for Integrative Biological Signalling Studies (CIBSS), University of Freiburg, Freiburg 79104, Germany
| | - Pengwei Wang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Bethany Karlin Zolman
- Department of Biology, University of Missouri, St. Louis, St. Louis, Missouri 63121, USA
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12
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Yu L, Zhang S, Liu H, Wang Y, Wei Y, Ren X, Zhang Q, Rong J, Sun C. Genome-Wide Analysis of SRNF Genes in Gossypium hirsutum Reveals the Role of GhSRNF18 in Primary Root Growth. FRONTIERS IN PLANT SCIENCE 2021; 12:731834. [PMID: 34630480 PMCID: PMC8494181 DOI: 10.3389/fpls.2021.731834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Root systems are instrumental for water and nutrient uptake and the anchorage of plants in the soil. Root regulating GL2-interacting repressors (GIRs) contain a Short RING-like Zinc-Finger (SRNF) domain, but there has been no comprehensive characterization about this gene family in any plant species. Here, we renamed the GIR-like proteins as SRNF proteins due to their conserved domain and identified 140 SRNF genes from 16 plant species including 24 GhSRNF genes in Gossypium hirsutum. Phylogenetic analysis of the SRNFs revealed both similarities and divergences between five subfamilies. Notably, synteny analysis revealed that polyploidization and whole-genome duplication contribute to the expansion of the GhSRNF gene family. Various cis-acting regulatory elements were shown to be pertinent to light, phytohormone, defense responsive, and meristem regulation. Furthermore, GhSRNF2/15 were predominantly expressed in root, whereas the expression of GhSRNF18 is positively correlated with the primary root (PR) length in G. hirsutum, quantified by quantitative real-time PCR (qRT-PCR). Over-expression of GhSRNF18 in Arabidopsis and virus-induced gene silencing (VIGS) of GhSRNF18 in G. hirsutum has revealed the role of GhSRNF18 in PR growth. The over-expression of GhSRNF18 in Arabidopsis resulted in an increase of meristematic activities and auxin accumulations in PRs, which were consistent with the transcriptomic data. Our results suggested that GhSRNF18 positively regulates PR growth. This study increased our understanding of the SRNF gene family in plants and provided a novel rationale for the further investigation of cotton root morphogenesis regulated by the GhSRNFs.
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Affiliation(s)
- Li Yu
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Shuojun Zhang
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Hailun Liu
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Yufei Wang
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Yiting Wei
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Xujiao Ren
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Qian Zhang
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Junkang Rong
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, China
- The State Key Laboratory of Subtropical Silviculture, College of Forest and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Chendong Sun
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou, China
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13
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Liu J, Qin G, Liu C, Liu X, Zhou J, Li J, Lu B, Zhao J. Genome-wide identification of candidate aquaporins involved in water accumulation of pomegranate outer seed coat. PeerJ 2021; 9:e11810. [PMID: 34316414 PMCID: PMC8286702 DOI: 10.7717/peerj.11810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 06/27/2021] [Indexed: 01/25/2023] Open
Abstract
Aquaporins (AQPs) are a class of highly conserved integral membrane proteins that facilitate the uptake and transport of water and other small molecules across cell membranes. However, little is known about AQP genes in pomegranate (Punica granatum L.) and their potential role in water accumulation of the outer seed coat. We identified 38 PgrAQP genes in the pomegranate genome and divided them into five subfamilies based on a comparative analysis. Purifying selection played a role in the evolution of PgrAQP genes and a whole-genome duplication event in Myrtales may have contributed to the expansion of PgrTIP, PgrSIP, and PgrXIP genes. Transcriptome data analysis revealed that the PgrAQP genes exhibited different tissue-specific expression patterns. Among them, the transcript abundance of PgrPIPs were significantly higher than that of other subfamilies. The mRNA transcription levels of PgrPIP1.3, PgrPIP2.8, and PgrSIP1.2 showed a significant linear relationship with water accumulation in seed coats, indicating that PgrPIP1.3/PgrPIP2.8 located in the plasma membrane and PgrSIP1.2 proteins located on the tonoplast may be involved in water accumulation and contribute to the cell expansion of the outer seed coat, which then develops into juicy edible flesh. Overall, our results provided not only information on the characteristics and evolution of PgrAQPs, but also insights on the genetic improvement of outer seed coats.
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Affiliation(s)
- Jianjian Liu
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, China.,Institute of Horticultural Research (Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crop, Anhui Province), Anhui Academy of Agricultural Sciences, Hefei, China
| | - Gaihua Qin
- Institute of Horticultural Research (Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crop, Anhui Province), Anhui Academy of Agricultural Sciences, Hefei, China.,Key Laboratory of Fruit Quality and Developmental Biology, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Chunyan Liu
- Institute of Horticultural Research (Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crop, Anhui Province), Anhui Academy of Agricultural Sciences, Hefei, China.,Key Laboratory of Fruit Quality and Developmental Biology, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Xiuli Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jie Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jiyu Li
- Institute of Horticultural Research (Key Laboratory of Genetic Improvement and Ecophysiology of Horticultural Crop, Anhui Province), Anhui Academy of Agricultural Sciences, Hefei, China.,Key Laboratory of Fruit Quality and Developmental Biology, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Bingxin Lu
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, China
| | - Jianrong Zhao
- College of Resource and Environment, Anhui Science and Technology University, Fengyang, China
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14
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Venisse JS, Õunapuu-Pikas E, Dupont M, Gousset-Dupont A, Saadaoui M, Faize M, Chen S, Chen S, Petel G, Fumanal B, Roeckel-Drevet P, Sellin A, Label P. Genome-Wide Identification, Structure Characterization, and Expression Pattern Profiling of the Aquaporin Gene Family in Betula pendula. Int J Mol Sci 2021; 22:7269. [PMID: 34298887 PMCID: PMC8304918 DOI: 10.3390/ijms22147269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 01/12/2023] Open
Abstract
Aquaporin water channels (AQPs) constitute a large family of transmembrane proteins present throughout all kingdoms of life. They play key roles in the flux of water and many solutes across the membranes. The AQP diversity, protein features, and biological functions of silver birch are still unknown. A genome analysis of Betula pendula identified 33 putative genes encoding full-length AQP sequences (BpeAQPs). They are grouped into five subfamilies, representing ten plasma membrane intrinsic proteins (PIPs), eight tonoplast intrinsic proteins (TIPs), eight NOD26-like intrinsic proteins (NIPs), four X intrinsic proteins (XIPs), and three small basic intrinsic proteins (SIPs). The BpeAQP gene structure is conserved within each subfamily, with exon numbers ranging from one to five. The predictions of the aromatic/arginine selectivity filter (ar/R), Froger's positions, specificity-determining positions, and 2D and 3D biochemical properties indicate noticeable transport specificities to various non-aqueous substrates between members and/or subfamilies. Nevertheless, overall, the BpePIPs display mostly hydrophilic ar/R selective filter and lining-pore residues, whereas the BpeTIP, BpeNIP, BpeSIP, and BpeXIP subfamilies mostly contain hydrophobic permeation signatures. Transcriptional expression analyses indicate that 23 BpeAQP genes are transcribed, including five organ-related expressions. Surprisingly, no significant transcriptional expression is monitored in leaves in response to cold stress (6 °C), although interesting trends can be distinguished and will be discussed, notably in relation to the plasticity of this pioneer species, B. pendula. The current study presents the first detailed genome-wide analysis of the AQP gene family in a Betulaceae species, and our results lay a foundation for a better understanding of the specific functions of the BpeAQP genes in the responses of the silver birch trees to cold stress.
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Affiliation(s)
- Jean-Stéphane Venisse
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Eele Õunapuu-Pikas
- Institute of Ecology and Earth Sciences, University of Tartu, 51005 Tartu, Estonia; (E.Õ.-P.); (A.S.)
| | - Maxime Dupont
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Aurélie Gousset-Dupont
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Mouadh Saadaoui
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
- National Institute of Agronomy of Tunisia (INAT), Crop Improvement Laboratory, INRAT, Tunis CP 1004, Tunisia
| | - Mohamed Faize
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorization, Faculty of Sciences, University Chouaib Doukkali, El Jadida 24000, Morocco;
| | - Song Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; (S.C.); (S.C.)
| | - Su Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; (S.C.); (S.C.)
| | - Gilles Petel
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Boris Fumanal
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Patricia Roeckel-Drevet
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
| | - Arne Sellin
- Institute of Ecology and Earth Sciences, University of Tartu, 51005 Tartu, Estonia; (E.Õ.-P.); (A.S.)
| | - Philippe Label
- Université Clermont Auvergne, INRAE, PIAF, 63000 Clermont-Ferrand, France; (M.D.); (A.G.-D.); (M.S.); (G.P.); (B.F.); (P.R.-D.)
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15
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Sudhakaran S, Thakral V, Padalkar G, Rajora N, Dhiman P, Raturi G, Sharma Y, Tripathi DK, Deshmukh R, Sharma TR, Sonah H. Significance of solute specificity, expression, and gating mechanism of tonoplast intrinsic protein during development and stress response in plants. PHYSIOLOGIA PLANTARUM 2021; 172:258-274. [PMID: 33723851 DOI: 10.1111/ppl.13386] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/01/2021] [Accepted: 03/05/2021] [Indexed: 06/12/2023]
Abstract
Tonoplast intrinsic proteins (TIPs), belonging to the aquaporin family, are transmembrane channels located mostly at the tonoplast of plant cells. The TIPs are known to transport water and many other small solutes such as ammonia, urea, hydrogen peroxide, and glycerol. In the present review, phylogenetic distribution, structure, transport dynamics, gating mechanism, sub-cellular localization, tissue-specific expression, and co-expression of TIPs are discussed to define their versatile role in plants. Based on the phylogenetic distribution, TIPs are classified into five distinct groups with aromatic-arginine (Ar/R) selectivity filters, typical pore-morphology, and tissue-specific gene expression patterns. The tissue-specific expression of TIPs is conserved among diverse plant species, more particularly for TIP3s, which are expressed exclusively in seeds. Studying TIP3 evolution will help to understand seed development and germination. The solute specificity of TIPs plays an imperative role in physiological processes like stomatal movement and vacuolar sequestration as well as in alleviating environmental stress. TIPs also play an important role in growth and developmental processes like radicle protrusion, anther dehiscence, seed germination, cell elongation, and expansion. The gating mechanism of TIPs regulates the solute flow in response to external signals, which helps to maintain the physiological functions of the cell. The information provided in this review is a base to explore TIP's potential in crop improvement programs.
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Affiliation(s)
- Sreeja Sudhakaran
- Division of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Vandana Thakral
- Division of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Gunashri Padalkar
- Division of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Nitika Rajora
- Division of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Pallavi Dhiman
- Division of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Gaurav Raturi
- Division of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Yogesh Sharma
- Division of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Durgesh K Tripathi
- Amity Institute of Organic Agriculture (AIOA), Amity University Uttar Pradesh, Noida, India
| | - Rupesh Deshmukh
- Division of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Tilak Raj Sharma
- Division of Crop Science, Indian Council of Agricultural Research, New Delhi, India
| | - Humira Sonah
- Division of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
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16
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Versatile Roles of Aquaporins in Plant Growth and Development. Int J Mol Sci 2020; 21:ijms21249485. [PMID: 33322217 PMCID: PMC7763978 DOI: 10.3390/ijms21249485] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 12/14/2022] Open
Abstract
Aquaporins (AQPs) are universal membrane integrated water channel proteins that selectively and reversibly facilitate the movement of water, gases, metalloids, and other small neutral solutes across cellular membranes in living organisms. Compared with other organisms, plants have the largest number of AQP members with diverse characteristics, subcellular localizations and substrate permeabilities. AQPs play important roles in plant water relations, cell turgor pressure maintenance, the hydraulic regulation of roots and leaves, and in leaf transpiration, root water uptake, and plant responses to multiple biotic and abiotic stresses. They are also required for plant growth and development. In this review, we comprehensively summarize the expression and roles of diverse AQPs in the growth and development of various vegetative and reproductive organs in plants. The functions of AQPs in the intracellular translocation of hydrogen peroxide are also discussed.
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17
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Singh S, Bhatt V, Kumar V, Kumawat S, Khatri P, Singla P, Shivaraj S, Nadaf A, Deshmukh R, Sharma TR, Sonah H. Evolutionary Understanding of Aquaporin Transport System in the Basal Eudicot Model Species Aquilegia coerulea. PLANTS 2020; 9:plants9060799. [PMID: 32604788 PMCID: PMC7355465 DOI: 10.3390/plants9060799] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 06/07/2020] [Accepted: 06/22/2020] [Indexed: 01/02/2023]
Abstract
Aquaporins (AQPs) play a pivotal role in the cellular transport of water and many other small solutes, influencing many physiological and developmental processes in plants. In the present study, extensive bioinformatics analysis of AQPs was performed in Aquilegia coerulea L., a model species belonging to basal eudicots, with a particular focus on understanding the AQPs role in the developing petal nectar spur. A total of 29 AQPs were identified in Aquilegia, and their phylogenetic analysis performed with previously reported AQPs from rice, poplar and Arabidopsis depicted five distinct subfamilies of AQPs. Interestingly, comparative analysis revealed the loss of an uncharacterized intrinsic protein II (XIP-II) group in Aquilegia. The absence of the entire XIP subfamily has been reported in several previous studies, however, the loss of a single clade within the XIP family has not been characterized. Furthermore, protein structure analysis of AQPs was performed to understand pore diversity, which is helpful for the prediction of solute specificity. Similarly, an AQP AqcNIP2-1 was identified in Aquilegia, predicted as a silicon influx transporter based on the presence of features such as the G-S-G-R aromatic arginine selectivity filter, the spacing between asparagine-proline-alanine (NPA) motifs and pore morphology. RNA-seq analysis showed a high expression of tonoplast intrinsic proteins (TIPs) and plasma membrane intrinsic proteins (PIPs) in the developing petal spur. The results presented here will be helpful in understanding the AQP evolution in Aquilegia and their expression regulation, particularly during floral development.
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Affiliation(s)
- Shweta Singh
- National Agri-Food Biotechnology Institute (NABI), Mohali Punjab 140306, India; (S.S.); (V.K.); (S.K.); (P.K.); (P.S.); (S.M.S.); (R.D.)
| | - Vacha Bhatt
- Department of Botany, Savitribai Phule Pune University, Pune, Maharashtra 411007, India; (V.B.); (A.N.)
| | - Virender Kumar
- National Agri-Food Biotechnology Institute (NABI), Mohali Punjab 140306, India; (S.S.); (V.K.); (S.K.); (P.K.); (P.S.); (S.M.S.); (R.D.)
| | - Surbhi Kumawat
- National Agri-Food Biotechnology Institute (NABI), Mohali Punjab 140306, India; (S.S.); (V.K.); (S.K.); (P.K.); (P.S.); (S.M.S.); (R.D.)
- Department of Biotechnology, Panjab University, Chandigarh 160014, India
| | - Praveen Khatri
- National Agri-Food Biotechnology Institute (NABI), Mohali Punjab 140306, India; (S.S.); (V.K.); (S.K.); (P.K.); (P.S.); (S.M.S.); (R.D.)
| | - Pankaj Singla
- National Agri-Food Biotechnology Institute (NABI), Mohali Punjab 140306, India; (S.S.); (V.K.); (S.K.); (P.K.); (P.S.); (S.M.S.); (R.D.)
| | - S.M. Shivaraj
- National Agri-Food Biotechnology Institute (NABI), Mohali Punjab 140306, India; (S.S.); (V.K.); (S.K.); (P.K.); (P.S.); (S.M.S.); (R.D.)
| | - Altaf Nadaf
- Department of Botany, Savitribai Phule Pune University, Pune, Maharashtra 411007, India; (V.B.); (A.N.)
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute (NABI), Mohali Punjab 140306, India; (S.S.); (V.K.); (S.K.); (P.K.); (P.S.); (S.M.S.); (R.D.)
| | - Tilak Raj Sharma
- National Agri-Food Biotechnology Institute (NABI), Mohali Punjab 140306, India; (S.S.); (V.K.); (S.K.); (P.K.); (P.S.); (S.M.S.); (R.D.)
- Division of Crop Science, Indian Council of Agricultural Research, Krishi Bhavan, New Delhi 110001, India
- Correspondence: (T.R.S.); (H.S.); Tel.: +91-172-522-1181 (H.S.)
| | - Humira Sonah
- National Agri-Food Biotechnology Institute (NABI), Mohali Punjab 140306, India; (S.S.); (V.K.); (S.K.); (P.K.); (P.S.); (S.M.S.); (R.D.)
- Correspondence: (T.R.S.); (H.S.); Tel.: +91-172-522-1181 (H.S.)
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Lian X, Tan B, Yan L, Jiang C, Cheng J, Zheng X, Wang W, Chen T, Ye X, Li J, Feng J. Transcript profiling provides insights into molecular processes during shoot elongation in temperature-sensitive peach (Prunus persica). Sci Rep 2020; 10:7801. [PMID: 32385278 PMCID: PMC7210264 DOI: 10.1038/s41598-020-63952-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 04/08/2020] [Indexed: 11/23/2022] Open
Abstract
Plant growth caused by ambient temperature is thought to be regulated by a complex transcriptional network. A temperature-sensitive peach (Prunus persica) was used to explore the mechanisms behind shoot internode elongation at elevated temperatures. There was a significantly positive correlation between the length of the terminal internode (TIL) and the maximum temperature three days prior to the measuring day. Four critical growth stages (initial period and initial elongation period at lower temperature, rapid growth period and stable growth period at higher temperature) were selected for comparative RNA-seq analysis. About 6.64G clean bases were obtained for each library, and 88.27% of the data were mapped to the reference genome. Differentially expressed gene (DEG) analysis among the three pairwise comparisons resulted in the detection of several genes related to the shoot elongation in temperature-sensitive peach. HSFAs were up-regulated in response to the elevated temperature, while the up-regulated expression of HSPs might influence hormone signaling pathways. Most of DEGs involved in auxin, abscisic acid and jasmonic acid were up-regulated, while some involved in cytokinin and brassinosteroid were down-regulated. Genes related to ethylene, salicylic acid and circadian rhythm were also differentially expressed. Genes related to aquaporins, expansins, pectinesterases and endoglucanase were up-regulated, which would promote cell elongation. These results lay a foundation for further dissection of the regulatory mechanisms underlying shoot elongation at elevated temperatures.
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Affiliation(s)
- Xiaodong Lian
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Bin Tan
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Liu Yan
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Chao Jiang
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Jun Cheng
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Xianbo Zheng
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Wei Wang
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Tanxing Chen
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Xia Ye
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Jidong Li
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China
| | - Jiancan Feng
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450002, China. .,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, 450002, China.
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19
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Singh RK, Deshmukh R, Muthamilarasan M, Rani R, Prasad M. Versatile roles of aquaporin in physiological processes and stress tolerance in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 149:178-189. [PMID: 32078896 DOI: 10.1016/j.plaphy.2020.02.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 02/11/2020] [Accepted: 02/11/2020] [Indexed: 05/21/2023]
Abstract
Aquaporins are pore-forming transmembrane proteins that facilitate the movement of water and many other small neutral solutes across the cells and intracellular compartments. Plants exhibits high diversity in aquaporin isoforms and broadly classified into five different subfamilies on the basis of phylogenetic distribution and subcellular occurrence: plasma membrane intrinsic proteins (PIPs), tonoplast intrinsic proteins (TIPs), nodulin 26-like proteins (NIPs), small basic intrinsic proteins (SIPs) and uncharacterized intrinsic proteins (XIPs). The gating mechanism of aquaporin channels is tightly regulated by post-translational modifications such as phosphorylation, methylation, acetylation, glycosylation, and deamination. Aquaporin expression and transport functions are also modulated by the various phytohormones-mediated signalling in plants. Combined physiology and transcriptome analysis revealed the role of aquaporins in regulating hydraulic conductance in roots and leaves. The present review mainly focused on aquaporin functional activity during solute transport, plant development, abiotic stress response, and plant-microbe symbiosis. Genetically modified plants overexpressing aquaporin-encoding genes display improved agronomic and abiotic stress tolerance.
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Affiliation(s)
- Roshan Kumar Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute, Mohali, 140306, Chandigarh, India
| | | | - Rekha Rani
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Manoj Prasad
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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20
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Bizzarri M, Delledonne M, Ferrarini A, Tononi P, Zago E, Vittori D, Damiani F, Paolocci F. Whole-Transcriptome Analysis Unveils the Synchronized Activities of Genes for Fructans in Developing Tubers of the Jerusalem Artichoke. FRONTIERS IN PLANT SCIENCE 2020; 11:101. [PMID: 32153609 PMCID: PMC7046554 DOI: 10.3389/fpls.2020.00101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 01/23/2020] [Indexed: 05/04/2023]
Abstract
Helianthus tuberosus L., known as the Jerusalem artichoke, is a hexaploid plant species, adapted to low-nutrient soils, that accumulates high levels of inulin in its tubers. Inulin is a fructose-based polysaccharide used either as dietary fiber or for the production of bioethanol. Key enzymes involved in inulin biosynthesis are well known. However, the gene networks underpinning tuber development and inulin accumulation in H. tuberous remain elusive. To fill this gap, we selected 6,365 expressed sequence tags (ESTs) from an H. tuberosus library to set up a microarray platform and record their expression across three tuber developmental stages, when rhizomes start enlarging (T0), at maximum tuber elongation rate (T3), and at tuber physiological maturity (Tm), in "VR" and "K8-HS142"clones. The former was selected as an early tuberizing and the latter as a late-tuberizing clone. We quantified inulin and starch levels, and qRT-PCR confirmed the expression of critical genes accounting for inulin biosynthesis. The microarray analysis revealed that the differences in morphological and physiological traits between tubers of the two clones are genetically determined since T0 and that is relatively low the number of differentially expressed ESTs across the stages shared between the clones (93). The expression of ESTs for sucrose:sucrose 1-fructosyltransferase (1-SST) and fructan:fructan 1-fructosyltransferase (1-FFT), the two critical genes for fructans polymerization, resulted to be temporarily synchronized and mirror the progress of inulin accumulation and stretching. The expression of ESTs for starch biosynthesis was insignificant throughout the developmental stages of the clones in line with the negligible level of starch into their mature tubers, where inulin was the dominant polysaccharide. Overall, our study disclosed candidate genes underpinning the development and storage of carbohydrates in the tubers of two H. tuberosus clones. A model according to which the steady-state levels of 1-SST and 1-FFT transcripts are developmentally controlled and might represent a limiting factor for inulin accumulation has been provided. Our finding may have significant repercussions for breeding clones with improved levels of inulin for food and chemical industry.
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Affiliation(s)
- Marco Bizzarri
- Department of Science and Technology for Agriculture, Forests, Nature and Energy (DAFNE), University of Tuscia, Viterbo, Italy
| | | | | | - Paola Tononi
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Elisa Zago
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Doriano Vittori
- Department of Science and Technology for Agriculture, Forests, Nature and Energy (DAFNE), University of Tuscia, Viterbo, Italy
| | - Francesco Damiani
- Institute of Bioscience and Bioresources (IBBR), National Research Council (CNR), Perugia, Italy
| | - Francesco Paolocci
- Institute of Bioscience and Bioresources (IBBR), National Research Council (CNR), Perugia, Italy
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21
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Vercruysse J, Van Bel M, Osuna‐Cruz CM, Kulkarni SR, Storme V, Nelissen H, Gonzalez N, Inzé D, Vandepoele K. Comparative transcriptomics enables the identification of functional orthologous genes involved in early leaf growth. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:553-567. [PMID: 31361386 PMCID: PMC6953196 DOI: 10.1111/pbi.13223] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/10/2019] [Accepted: 07/25/2019] [Indexed: 05/20/2023]
Abstract
Leaf growth is a complex trait for which many similarities exist in different plant species, suggesting functional conservation of the underlying pathways. However, a global view of orthologous genes involved in leaf growth showing conserved expression in dicots and monocots is currently missing. Here, we present a genome-wide comparative transcriptome analysis between Arabidopsis and maize, identifying conserved biological processes and gene functions active during leaf growth. Despite the orthology complexity between these distantly related plants, 926 orthologous gene groups including 2829 Arabidopsis and 2974 maize genes with similar expression during leaf growth were found, indicating conservation of the underlying molecular networks. We found 65% of these genes to be involved in one-to-one orthology, whereas only 28.7% of the groups with divergent expression had one-to-one orthology. Within the pool of genes with conserved expression, 19 transcription factor families were identified, demonstrating expression conservation of regulators active during leaf growth. Additionally, 25 Arabidopsis and 25 maize putative targets of the TCP transcription factors with conserved expression were determined based on the presence of enriched transcription factor binding sites. Based on large-scale phenotypic data, we observed that genes with conserved expression have a higher probability to be involved in leaf growth and that leaf-related phenotypes are more frequently present for genes having orthologues between dicots and monocots than clade-specific genes. This study shows the power of integrating transcriptomic with orthology data to identify or select candidates for functional studies during leaf development in flowering plants.
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Affiliation(s)
- Jasmien Vercruysse
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGentBelgium
- Center for Plant Systems BiologyVIBGentBelgium
| | - Michiel Van Bel
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGentBelgium
- Center for Plant Systems BiologyVIBGentBelgium
| | - Cristina M. Osuna‐Cruz
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGentBelgium
- Center for Plant Systems BiologyVIBGentBelgium
| | - Shubhada R. Kulkarni
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGentBelgium
- Center for Plant Systems BiologyVIBGentBelgium
| | - Véronique Storme
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGentBelgium
- Center for Plant Systems BiologyVIBGentBelgium
| | - Hilde Nelissen
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGentBelgium
- Center for Plant Systems BiologyVIBGentBelgium
| | - Nathalie Gonzalez
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGentBelgium
- Center for Plant Systems BiologyVIBGentBelgium
- INRAUMR1332 Biologie du fruit et PathologieINRA Bordeaux AquitaineVillenave d'Ornon CedexFrance
| | - Dirk Inzé
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGentBelgium
- Center for Plant Systems BiologyVIBGentBelgium
| | - Klaas Vandepoele
- Department of Plant Biotechnology and BioinformaticsGhent UniversityGentBelgium
- Center for Plant Systems BiologyVIBGentBelgium
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22
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Quesada-Traver C, Guerrero BI, Badenes ML, Rodrigo J, Ríos G, Lloret A. Structure and Expression of Bud Dormancy-Associated MADS-Box Genes ( DAM) in European Plum. FRONTIERS IN PLANT SCIENCE 2020; 11:1288. [PMID: 32973847 PMCID: PMC7466548 DOI: 10.3389/fpls.2020.01288] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/07/2020] [Indexed: 05/22/2023]
Abstract
Bud dormancy in temperate perennials ensures the survival of growing meristems under the harsh environmental conditions of autumn and winter, and facilitates an optimal growth and development resumption in the spring. Although the molecular pathways controlling the dormancy process are still unclear, DORMANCY-ASSOCIATED MADS-BOX genes (DAM) have emerged as key regulators of the dormancy cycle in different species. In the present study, we have characterized the orthologs of DAM genes in European plum (Prunus domestica L.). Their expression patterns together with sequence similarities are consistent with a role of PdoDAMs in dormancy maintenance mechanisms in European plum. Furthermore, other genes related to dormancy, flowering, and stress response have been identified in order to obtain a molecular framework of these three different processes taking place within the dormant flower bud in this species. This research provides a set of candidate genes to be genetically modified in future research, in order to better understand dormancy regulation in perennial species.
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Affiliation(s)
- Carles Quesada-Traver
- Centro de Citricultura y Producción Vegetal, Instituto Valenciano de Investigaciones Agrarias (IVIA), Valencia, Spain
| | - Brenda Ivette Guerrero
- Unidad de Hortofruticultura, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Zaragoza, Spain
| | - María Luisa Badenes
- Centro de Citricultura y Producción Vegetal, Instituto Valenciano de Investigaciones Agrarias (IVIA), Valencia, Spain
| | - Javier Rodrigo
- Unidad de Hortofruticultura, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Zaragoza, Spain
- Instituto Agroalimentario de Aragón-IA2, CITA-Universidad de Zaragoza, Zaragoza, Spain
| | - Gabino Ríos
- Centro de Citricultura y Producción Vegetal, Instituto Valenciano de Investigaciones Agrarias (IVIA), Valencia, Spain
| | - Alba Lloret
- Centro de Citricultura y Producción Vegetal, Instituto Valenciano de Investigaciones Agrarias (IVIA), Valencia, Spain
- *Correspondence: Alba Lloret,
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23
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Kaiser S, Scheuring D. To Lead or to Follow: Contribution of the Plant Vacuole to Cell Growth. FRONTIERS IN PLANT SCIENCE 2020; 11:553. [PMID: 32457785 PMCID: PMC7227418 DOI: 10.3389/fpls.2020.00553] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 04/14/2020] [Indexed: 05/06/2023]
Abstract
Cell division and cell elongation are fundamental processes for growth. In contrast to animal cells, plant cells are surrounded by rigid walls and therefore loosening of the wall is required during elongation. On the other hand, vacuole size has been shown to correlate with cell size and inhibition of vacuolar expansion limits cell growth. However, the specific role of the vacuole during cell elongation is still not fully resolved. Especially the question whether the vacuole is the leading unit during cellular growth or just passively expands upon water uptake remains to be answered. Here, we review recent findings about the contribution of the vacuole to cell elongation. In addition, we also discuss the connection between cell wall status and vacuolar morphology. In particular, we focus on the question whether vacuolar size is dictated by cell size or vice versa and share our personnel view about the sequential steps during cell elongation.
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24
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Tan X, Li K, Wang Z, Zhu K, Tan X, Cao J. A Review of Plant Vacuoles: Formation, Located Proteins, and Functions. PLANTS 2019; 8:plants8090327. [PMID: 31491897 PMCID: PMC6783984 DOI: 10.3390/plants8090327] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/22/2019] [Accepted: 09/04/2019] [Indexed: 12/19/2022]
Abstract
Vacuoles, cellular membrane-bound organelles, are the largest compartments of cells, occupying up to 90% of the volume of plant cells. Vacuoles are formed by the biosynthetic and endocytotic pathways. In plants, the vacuole is crucial for growth and development and has a variety of functions, including storage and transport, intracellular environmental stability, and response to injury. Depending on the cell type and growth conditions, the size of vacuoles is highly dynamic. Different types of cell vacuoles store different substances, such as alkaloids, protein enzymes, inorganic salts, sugars, etc., and play important roles in multiple signaling pathways. Here, we summarize vacuole formation, types, vacuole-located proteins, and functions.
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Affiliation(s)
- Xiaona Tan
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Kaixia Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Zheng Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Keming Zhu
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Xiaoli Tan
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Jun Cao
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
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25
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Zhou Y, Tao J, Ahammed GJ, Li J, Yang Y. Genome-wide identification and expression analysis of aquaporin gene family related to abiotic stress in watermelon. Genome 2019; 62:643-656. [PMID: 31418287 DOI: 10.1139/gen-2019-0061] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The plant aquaporins (AQPs) are highly conserved integral membrane proteins that participate in multiple developmental processes and responses to various stresses. In this study, a total of 35 AQP genes were identified in the watermelon genome. The phylogenetic analysis showed that these AQPs can be divided into five types, including 16 plasma membrane intrinsic proteins (PIPs), eight tonoplast intrinsic proteins (TIPs), eight nodulin 26-like intrinsic proteins (NIPs), two small basic intrinsic proteins (SIPs), and one uncategorized X intrinsic protein (XIP). A number of cis-elements related to plant responses to hormones and stresses were detected in the promoter sequences of ClAQP genes. Chromosome distribution analysis revealed that the genes are unevenly distributed on eight chromosomes, with chromosomes 1 and 4 possessing the most genes. Expression analysis at different developmental stages in flesh and rind indicated that most of ClAQPs have tissue-specific expression. Meanwhile, some other AQP genes showed differential expression in response to cold, salt, and ABA treatments, which is consistent with the organization of the stress-responsive cis-elements detected in the promoter regions. Our results lay a foundation for understanding the specific functions of ClAQP genes to help the genetic improvement of watermelon.
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Affiliation(s)
- Yong Zhou
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Junjie Tao
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China.,Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
| | - Golam Jalal Ahammed
- College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Jingwen Li
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China.,Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
| | - Youxin Yang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China.,Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
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26
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Ng WL, Wu W, Zou P, Zhou R. Comparative transcriptomics sheds light on differential adaptation and species diversification between two Melastoma species and their F 1 hybrid. AOB PLANTS 2019; 11:plz019. [PMID: 31037213 PMCID: PMC6481908 DOI: 10.1093/aobpla/plz019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 03/27/2019] [Indexed: 06/09/2023]
Abstract
Variation in gene expression has been shown to promote adaptive divergence, and can lead to speciation. The plant genus Melastoma, thought to have diversified through adaptive radiation, provides an excellent model for the study of gene expressional changes during adaptive differentiation and following interspecific hybridization. In this study, we performed RNA-seq on M. candidum, M. sanguineum and their F1 hybrid, to investigate the role of gene expression in species diversification within the genus. Reference transcriptomes were assembled using combined data from both parental species, resulting in 50 519 and 48 120 transcripts for the leaf and flower petal, after removing redundancy. Differential expression analysis uncovered 3793 and 2116 differentially expressed (DE) transcripts, most of which are between M. candidum and M. sanguineum. Differential expression was observed for genes related to light responses, as well as genes that regulate the development of leaf trichomes, a trait that among others is thought to protect plants against sunlight, suggesting the differential adaptation of the species to sunlight intensity. The analysis of positively selected genes between the two species also revealed possible differential adaptation to other abiotic stresses such as drought and temperature. In the hybrid, almost all possible modes of expression were observed at the DE transcripts, although at most transcripts, the expression levels were similar to that of either parent instead of being intermediate. A small number of transgressively expressed transcripts that matched genes known to promote plant growth and adaptation to stresses in new environments were also found, possibly explaining the vigour observed in the hybrid. The findings in this study provided insights into the role of gene expression in the diversification of Melastoma, which we believe is an important example for more cross-taxa comparisons in the future.
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Affiliation(s)
- Wei Lun Ng
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
- China-ASEAN College of Marine Sciences, Xiamen University Malaysia, Sepang, Selangor, Malaysia
| | - Wei Wu
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Peishan Zou
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Renchao Zhou
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
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Hong L, Dumond M, Zhu M, Tsugawa S, Li CB, Boudaoud A, Hamant O, Roeder AHK. Heterogeneity and Robustness in Plant Morphogenesis: From Cells to Organs. ANNUAL REVIEW OF PLANT BIOLOGY 2018; 69:469-495. [PMID: 29505739 DOI: 10.1146/annurev-arplant-042817-040517] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Development is remarkably reproducible, producing organs with the same size, shape, and function repeatedly from individual to individual. For example, every flower on the Antirrhinum stalk has the same snapping dragon mouth. This reproducibility has allowed taxonomists to classify plants and animals according to their morphology. Yet these reproducible organs are composed of highly variable cells. For example, neighboring cells grow at different rates in Arabidopsis leaves, sepals, and shoot apical meristems. This cellular variability occurs in normal, wild-type organisms, indicating that cellular heterogeneity (or diversity in a characteristic such as growth rate) is either actively maintained or, at a minimum, not entirely suppressed. In fact, cellular heterogeneity can contribute to producing invariant organs. Here, we focus on how plant organs are reproducibly created during development from these highly variable cells.
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Affiliation(s)
- Lilan Hong
- Weill Institute for Cell and Molecular Biology and Section of Plant Biology, School of Integrative Plant Science; Cornell University, Ithaca, New York 14853, USA; , ,
| | - Mathilde Dumond
- Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, INRA, CNRS, 69364 Lyon CEDEX 07, France; , ,
- Current affiliation: Department for Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland;
| | - Mingyuan Zhu
- Weill Institute for Cell and Molecular Biology and Section of Plant Biology, School of Integrative Plant Science; Cornell University, Ithaca, New York 14853, USA; , ,
| | - Satoru Tsugawa
- Theoretical Biology Laboratory, RIKEN, Wako, Saitama 351-0198, Japan;
| | - Chun-Biu Li
- Department of Mathematics, Stockholm University, 106 91 Stockholm, Sweden;
| | - Arezki Boudaoud
- Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, INRA, CNRS, 69364 Lyon CEDEX 07, France; , ,
| | - Olivier Hamant
- Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, INRA, CNRS, 69364 Lyon CEDEX 07, France; , ,
| | - Adrienne H K Roeder
- Weill Institute for Cell and Molecular Biology and Section of Plant Biology, School of Integrative Plant Science; Cornell University, Ithaca, New York 14853, USA; , ,
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Feng ZJ, Xu SC, Liu N, Zhang GW, Hu QZ, Xu ZS, Gong YM. Identification of the AQP members involved in abiotic stress responses from Arabidopsis. Gene 2018; 646:64-73. [DOI: 10.1016/j.gene.2017.12.048] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 12/22/2017] [Indexed: 11/26/2022]
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Pang Y, Li J, Qi B, Tian M, Sun L, Wang X, Hao F. Aquaporin AtTIP5;1 as an essential target of gibberellins promotes hypocotyl cell elongation in Arabidopsis thaliana under excess boron stress. FUNCTIONAL PLANT BIOLOGY : FPB 2018; 45:305-314. [PMID: 32290954 DOI: 10.1071/fp16444] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 08/29/2017] [Indexed: 06/11/2023]
Abstract
Aquaporins play essential roles in growth and development including stem elongation in plants. Tonoplast aquaporin AtTIP5;1 has been proposed to positively regulate hypocotyl elongation under high concentrations of boron (high-B) in Arabidopsis thaliana (L.) Heynh. However, the mechanism underlying this process remains unanswered. Here, we show that paclobatrazol, an inhibitor of GA biosynthesis, significantly suppressed the hypocotyl cell elongation of wild-type (WT) seedlings, and more strongly suppressed that of AtTIP5;1 overexpressors under high-B stress. Two AtTIP5;1 null mutants displayed arrested elongation of cells in the upper part of hypocotyls compared with the WT in the presence of high-B or GA3. Moreover, paclobatrazol treatment completely inhibited the increases in AtTIP5;1 transcripts induced by high-B, whereas GA3 application upregulated AtTIP5;1 expression in the WT. In addition, treatment with high-B remarkably elevated the expression levels of GA3ox1, GA20ox1 and GA20ox2 - key biosynthesis genes of GAs - in WT seedlings. The GA3 and GA4 content also increased in WT seedlings grown in MS medium containing high-B. Additionally, application of high-B failed to enhance AtTIP5;1 expression in the double mutant rga-24-gai-t6 of DELLA genes. Together, these results suggest that AtTIP5;1 is an essential downstream target of GAs. High-B induces the accumulation of GAs, which activates AtTIP5;1 through modulation of the DELLA proteins Repressor of ga1-3 and GA-insensitive, further promoting hypocotyl elongation in A. thaliana.
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Affiliation(s)
- Yongqi Pang
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, College of Life Sciences, Henan University, Kaifeng 475004, P.R. China
| | - Jintong Li
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, College of Life Sciences, Henan University, Kaifeng 475004, P.R. China
| | - Bishu Qi
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Agricultural University of Hebei, Baoding 071000, P.R. China
| | - Mi Tian
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, College of Life Sciences, Henan University, Kaifeng 475004, P.R. China
| | - Lirong Sun
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, College of Life Sciences, Henan University, Kaifeng 475004, P.R. China
| | - Xuechen Wang
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, College of Life Sciences, Henan University, Kaifeng 475004, P.R. China
| | - Fushun Hao
- State Key Laboratory of Cotton Biology, Henan Key Laboratory of Plant Stress Biology, College of Life Sciences, Henan University, Kaifeng 475004, P.R. China
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Isner JC, Begum A, Nuehse T, Hetherington AM, Maathuis FJ. KIN7 Kinase Regulates the Vacuolar TPK1 K+ Channel during Stomatal Closure. Curr Biol 2018; 28:466-472.e4. [DOI: 10.1016/j.cub.2017.12.046] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 10/19/2017] [Accepted: 12/20/2017] [Indexed: 01/18/2023]
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31
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Comprehensive Analysis of the Cork Oak (Quercus suber) Transcriptome Involved in the Regulation of Bud Sprouting. FORESTS 2017. [DOI: 10.3390/f8120486] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Krüger F, Schumacher K. Pumping up the volume - vacuole biogenesis in Arabidopsis thaliana. Semin Cell Dev Biol 2017; 80:106-112. [PMID: 28694113 DOI: 10.1016/j.semcdb.2017.07.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 07/06/2017] [Accepted: 07/06/2017] [Indexed: 01/05/2023]
Abstract
Plant architecture follows the need to collect CO2, solar energy, water and mineral nutrients via large surface areas. It is by the presence of a central vacuole that fills much of the cell volume that plants manage to grow at low metabolic cost. In addition vacuoles buffer the fluctuating supply of essential nutrients and help to detoxify the cytosol when plants are challenged by harmful molecules. Despite their large size and multiple important functions, our knowledge of vacuole biogenesis and the machinery underlying their amazing dynamics is still fragmentary. In this review, we try to reconcile past and present models for vacuole biogenesis with the current knowledge of multiple parallel vacuolar trafficking pathways and the molecular machineries driving membrane fusion and organelle shape.
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Affiliation(s)
- Falco Krüger
- Department of Plant Developmental Biology, Centre for Organismal Studies, Heidelberg University, DE-69120 Heidelberg, Germany
| | - Karin Schumacher
- Department of Plant Developmental Biology, Centre for Organismal Studies, Heidelberg University, DE-69120 Heidelberg, Germany.
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Lloret A, Conejero A, Leida C, Petri C, Gil-Muñoz F, Burgos L, Badenes ML, Ríos G. Dual regulation of water retention and cell growth by a stress-associated protein (SAP) gene in Prunus. Sci Rep 2017; 7:332. [PMID: 28336950 PMCID: PMC5428470 DOI: 10.1038/s41598-017-00471-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 02/27/2017] [Indexed: 01/21/2023] Open
Abstract
We have identified a gene (PpSAP1) of Prunus persica coding for a stress-associated protein (SAP) containing Zn-finger domains A20 and AN1. SAPs have been described as regulators of the abiotic stress response in plant species, emerging as potential candidates for improvement of stress tolerance in plants. PpSAP1 was highly expressed in leaves and dormant buds, being down-regulated before bud dormancy release. PpSAP1 expression was moderately induced by water stresses and heat in buds. In addition, it was found that PpSAP1 strongly interacts with polyubiquitin proteins in the yeast two-hybrid system. The overexpression of PpSAP1 in transgenic plum plants led to alterations in leaf shape and an increase of water retention under drought stress. Moreover, we established that leaf morphological alterations were concomitant with a reduced cell size and down-regulation of genes involved in cell growth, such as GROWTH-REGULATING FACTOR (GRF)1-like, TONOPLAST INTRINSIC PROTEIN (TIP)-like, and TARGET OF RAPAMYCIN (TOR)-like. Especially, the inverse expression pattern of PpSAP1 and TOR-like in transgenic plum and peach buds suggests a role of PpSAP1 in cell expansion through the regulation of TOR pathway.
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Affiliation(s)
- Alba Lloret
- Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113, Moncada, Valencia, Spain
| | - Ana Conejero
- Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113, Moncada, Valencia, Spain
| | - Carmen Leida
- Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113, Moncada, Valencia, Spain
| | - César Petri
- Department of Plant Production, Instituto de Biotecnología Vegetal-Universidad Politécnita de Cartagena (IBV-UPCT), 30202, Cartagena, Murcia, Spain
| | - Francisco Gil-Muñoz
- Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113, Moncada, Valencia, Spain
| | - Lorenzo Burgos
- Group of Fruit Tree Biotechnology, Department of Plant Breeding, CEBAS-CSIC, 30100, Murcia, Spain
| | - María Luisa Badenes
- Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113, Moncada, Valencia, Spain
| | - Gabino Ríos
- Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113, Moncada, Valencia, Spain.
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Kayum MA, Park JI, Nath UK, Biswas MK, Kim HT, Nou IS. Genome-wide expression profiling of aquaporin genes confer responses to abiotic and biotic stresses in Brassica rapa. BMC PLANT BIOLOGY 2017; 17:23. [PMID: 28122509 PMCID: PMC5264328 DOI: 10.1186/s12870-017-0979-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 01/17/2017] [Indexed: 05/20/2023]
Abstract
BACKGROUND Plants contain a range of aquaporin (AQP) proteins, which act as transporter of water and nutrient molecules through living membranes. AQPs also participate in water uptake through the roots and contribute to water homeostasis in leaves. RESULTS In this study, we identified 59 AQP genes in the B. rapa database and Br135K microarray dataset. Phylogenetic analysis revealed four distinct subfamilies of AQP genes: plasma membrane intrinsic proteins (PIPs), tonoplast intrinsic proteins (TIPs), NOD26-like intrinsic proteins (NIPs) and small basic intrinsic proteins (SIPs). Microarray analysis showed that the majority of PIP subfamily genes had differential transcript abundance between two B. rapa inbred lines Chiifu and Kenshin that differ in their susceptibility to cold. In addition, all BrPIP genes showed organ-specific expression. Out of 22 genes, 12, 7 and 17 were up-regulated in response to cold, drought and salt stresses, respectively. In addition, 18 BrPIP genes were up-regulated under ABA treatment and 4 BrPIP genes were up-regulated upon F. oxysporum f. sp. conglutinans infection. Moreover, all BrPIP genes showed down-regulation under waterlogging stress, reflecting likely the inactivation of AQPs controlling symplastic water movement. CONCLUSIONS This study provides a comprehensive analysis of AQPs in B. rapa and details the expression of 22 members of the BrPIP subfamily. These results provide insight into stress-related biological functions of each PIP gene of the AQP family, which will promote B. rapa breeding programs.
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Affiliation(s)
- Md. Abdul Kayum
- Department of Horticulture, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922 South Korea
| | - Jong-In Park
- Department of Horticulture, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922 South Korea
| | - Ujjal Kumar Nath
- Department of Horticulture, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922 South Korea
| | - Manosh Kumar Biswas
- Department of Horticulture, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922 South Korea
| | - Hoy-Taek Kim
- University-Industry Cooperation Foundation, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922 South Korea
| | - Ill-Sup Nou
- Department of Horticulture, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922 South Korea
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Reinhardt H, Hachez C, Bienert MD, Beebo A, Swarup K, Voß U, Bouhidel K, Frigerio L, Schjoerring JK, Bennett MJ, Chaumont F. Tonoplast Aquaporins Facilitate Lateral Root Emergence. PLANT PHYSIOLOGY 2016; 170:1640-54. [PMID: 26802038 PMCID: PMC4775129 DOI: 10.1104/pp.15.01635] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 01/19/2016] [Indexed: 05/18/2023]
Abstract
Aquaporins (AQPs) are water channels allowing fast and passive diffusion of water across cell membranes. It was hypothesized that AQPs contribute to cell elongation processes by allowing water influx across the plasma membrane and the tonoplast to maintain adequate turgor pressure. Here, we report that, in Arabidopsis (Arabidopsis thaliana), the highly abundant tonoplast AQP isoforms AtTIP1;1, AtTIP1;2, and AtTIP2;1 facilitate the emergence of new lateral root primordia (LRPs). The number of lateral roots was strongly reduced in the triple tip mutant, whereas the single, double, and triple tip mutants showed no or minor reduction in growth of the main root. This phenotype was due to the retardation of LRP emergence. Live cell imaging revealed that tight spatiotemporal control of TIP abundance in the tonoplast of the different LRP cells is pivotal to mediating this developmental process. While lateral root emergence is correlated to a reduction of AtTIP1;1 and AtTIP1;2 protein levels in LRPs, expression of AtTIP2;1 is specifically needed in a restricted cell population at the base, then later at the flanks, of developing LRPs. Interestingly, the LRP emergence phenotype of the triple tip mutants could be fully rescued by expressing AtTIP2;1 under its native promoter. We conclude that TIP isoforms allow the spatial and temporal fine-tuning of cellular water transport, which is critically required during the highly regulated process of LRP morphogenesis and emergence.
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Affiliation(s)
- Hagen Reinhardt
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Charles Hachez
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Manuela Désirée Bienert
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Azeez Beebo
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Kamal Swarup
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Ute Voß
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Karim Bouhidel
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Lorenzo Frigerio
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Jan K Schjoerring
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Malcolm J Bennett
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
| | - Francois Chaumont
- Institut des Sciences de la Vie, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium (H.R., C.H., F.C.);Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark (M.D.B., J.K.S.);Université de Bourgogne, UMR1347 Agroécologie IPM, F-21000 Dijon, France (A.B., K.B.);Centre for Plant Integrative Biology, University of Nottingham, Sutton Bonington LE12 5RD, United Kingdom (K.S., U.V., M.J.B.); andSchool of Life Sciences, University of Warwick, Coventry CV47AL, United Kingdom (L.F.)
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Ariani A, Francini A, Andreucci A, Sebastiani L. Over-expression of AQUA1 in Populus alba Villafranca clone increases relative growth rate and water use efficiency, under Zn excess condition. PLANT CELL REPORTS 2016; 35:289-301. [PMID: 26518428 DOI: 10.1007/s00299-015-1883-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/01/2015] [Accepted: 10/12/2015] [Indexed: 05/04/2023]
Abstract
Transgenic Populus alba over-expressing a TIP aquaporin ( aqua1) showed a higher growth rate under Zn excess, suggesting that aqua1 could be involved in water homeostasis, rather than in Zn homeostasis. Populus is the internationally accepted model for physiological and developmental studies of tree traits under stress. In plants, aquaporins facilitate and regulate the diffusion of water, however, few poplar aquaporins have been characterized to date. In this study, we reported for the first time an in vivo characterization of Populus alba clone Villafranca transgenic plants over-expressing a TIP aquaporin (aqua1) of P. x euramericana clone I-214. An AQUA1:GFP chimeric construct, over-expressed in P. alba Villafranca clones, shows a cytoplasmic localization in roots, and it localizes in guard cells in leaves. When over-expressed in transgenic plants, aqua1 confers a higher growth rate compared to wild-type (wt) plants, without affecting chlorophyll accumulation, relative water content (RWC), and fluorescence performances, but increasing the intrinsic Transpiration Efficiency. In response to Zn (1 mM), transgenic lines did not show a significant increase in Zn accumulation as compared to wt plants, even though the over-expression of this gene confers higher tolerance in root tissues. These results suggest that, in poplar plants, this gene could be principally involved in regulation of water homeostasis and biomass production, rather than in Zn homeostasis.
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Affiliation(s)
- Andrea Ariani
- BioLabs, Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà, 33, 56127, Pisa, Italy.
- Department of Plant Sciences/MS1, University of California, 1 Shields Avenue, Davis, CA, 95616-8780, USA.
| | - Alessandra Francini
- BioLabs, Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà, 33, 56127, Pisa, Italy.
| | - Andrea Andreucci
- Department of Biology, University of Pisa, V. L. Ghini 13, 56126, Pisa, Italy.
| | - Luca Sebastiani
- BioLabs, Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà, 33, 56127, Pisa, Italy.
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Gao L, Geng Y, Yang H, Hu Y, Yang J. Gene Expression Reaction Norms Unravel the Molecular and Cellular Processes Underpinning the Plastic Phenotypes of Alternanthera Philoxeroides in Contrasting Hydrological Conditions. FRONTIERS IN PLANT SCIENCE 2015; 6:991. [PMID: 26617628 PMCID: PMC4641913 DOI: 10.3389/fpls.2015.00991] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 10/29/2015] [Indexed: 05/25/2023]
Abstract
Alternanthera philoxeroides is an amphibious invasive weed that can colonize both aquatic and terrestrial habitats. Individuals growing in different habitats exhibit extensive phenotypic variation but little genetic differentiation. Little is known about the molecular basis underlying environment-induced phenotypic changes. Variation in transcript abundance in A. philoxeroides was characterized throughout the time-courses of pond and upland treatments using RNA-Sequencing. Seven thousand eight hundred and five genes demonstrated variable expression in response to different treatments, forming 11 transcriptionally coordinated gene groups. Functional enrichment analysis of plastically expressed genes revealed pathway changes in hormone-mediated signaling, osmotic adjustment, cell wall remodeling, and programmed cell death, providing a mechanistic understanding of the biological processes underlying the phenotypic changes in A. philoxeroides. Both transcriptional modulation of environmentally sensitive loci and environmentally dependent control of regulatory loci influenced the plastic responses to the environment. Phenotypic responses and gene expression patterns to contrasting hydrological conditions were compared between A. philoxeroides and its alien congener Alternanthera pungens. The terricolous A. pungens displayed limited phenotypic plasticity to different treatments. It was postulated based on gene expression comparison that the interspecific variation in plasticity between A. philoxeroides and A. pungens was not due to environmentally-mediated changes in hormone levels but to variations in the type and relative abundance of different signal transducers and receptors expressed in the target tissue.
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Affiliation(s)
- Lexuan Gao
- Center for Evolutionary Biology and Institute of Biodiversity Science, Fudan UniversityShanghai, China
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai Chenshan Botanical GardenShanghai, China
| | - Yupeng Geng
- School of Ecology and Environmental Sciences, Institute of Ecology and Geobotany, Yunnan UniversityKunming, China
| | - Hongxing Yang
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai Chenshan Botanical GardenShanghai, China
| | - Yonghong Hu
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Plant Science Research Center, Chinese Academy of Sciences, Shanghai Chenshan Botanical GardenShanghai, China
| | - Ji Yang
- Center for Evolutionary Biology and Institute of Biodiversity Science, Fudan UniversityShanghai, China
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Zou Z, Gong J, Huang Q, Mo Y, Yang L, Xie G. Gene Structures, Evolution, Classification and Expression Profiles of the Aquaporin Gene Family in Castor Bean (Ricinus communis L.). PLoS One 2015; 10:e0141022. [PMID: 26509832 PMCID: PMC4625025 DOI: 10.1371/journal.pone.0141022] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 10/02/2015] [Indexed: 01/13/2023] Open
Abstract
Aquaporins (AQPs) are a class of integral membrane proteins that facilitate the passive transport of water and other small solutes across biological membranes. Castor bean (Ricinus communis L., Euphobiaceae), an important non-edible oilseed crop, is widely cultivated for industrial, medicinal and cosmetic purposes. Its recently available genome provides an opportunity to analyze specific gene families. In this study, a total of 37 full-length AQP genes were identified from the castor bean genome, which were assigned to five subfamilies, including 10 plasma membrane intrinsic proteins (PIPs), 9 tonoplast intrinsic proteins (TIPs), 8 NOD26-like intrinsic proteins (NIPs), 6 X intrinsic proteins (XIPs) and 4 small basic intrinsic proteins (SIPs) on the basis of sequence similarities. Functional prediction based on the analysis of the aromatic/arginine (ar/R) selectivity filter, Froger's positions and specificity-determining positions (SDPs) showed a remarkable difference in substrate specificity among subfamilies. Homology analysis supported the expression of all 37 RcAQP genes in at least one of examined tissues, e.g., root, leaf, flower, seed and endosperm. Furthermore, global expression profiles with deep transcriptome sequencing data revealed diverse expression patterns among various tissues. The current study presents the first genome-wide analysis of the AQP gene family in castor bean. Results obtained from this study provide valuable information for future functional analysis and utilization.
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Affiliation(s)
- Zhi Zou
- Danzhou Investigation & Experiment Station of Tropical Crops, Ministry of Agriculture, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan, P. R. China
| | - Jun Gong
- Danzhou Investigation & Experiment Station of Tropical Crops, Ministry of Agriculture, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan, P. R. China
| | - Qixing Huang
- Institute of Tropical Biosciences and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, P. R. China
| | - Yeyong Mo
- Danzhou Investigation & Experiment Station of Tropical Crops, Ministry of Agriculture, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan, P. R. China
| | - Lifu Yang
- Danzhou Investigation & Experiment Station of Tropical Crops, Ministry of Agriculture, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan, P. R. China
| | - Guishui Xie
- Danzhou Investigation & Experiment Station of Tropical Crops, Ministry of Agriculture, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan, P. R. China
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39
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Maurel C, Boursiac Y, Luu DT, Santoni V, Shahzad Z, Verdoucq L. Aquaporins in Plants. Physiol Rev 2015; 95:1321-58. [DOI: 10.1152/physrev.00008.2015] [Citation(s) in RCA: 486] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Aquaporins are membrane channels that facilitate the transport of water and small neutral molecules across biological membranes of most living organisms. In plants, aquaporins occur as multiple isoforms reflecting a high diversity of cellular localizations, transport selectivity, and regulation properties. Plant aquaporins are localized in the plasma membrane, endoplasmic reticulum, vacuoles, plastids and, in some species, in membrane compartments interacting with symbiotic organisms. Plant aquaporins can transport various physiological substrates in addition to water. Of particular relevance for plants is the transport of dissolved gases such as carbon dioxide and ammonia or metalloids such as boron and silicon. Structure-function studies are developed to address the molecular and cellular mechanisms of plant aquaporin gating and subcellular trafficking. Phosphorylation plays a central role in these two processes. These mechanisms allow aquaporin regulation in response to signaling intermediates such as cytosolic pH and calcium, and reactive oxygen species. Combined genetic and physiological approaches are now integrating this knowledge, showing that aquaporins play key roles in hydraulic regulation in roots and leaves, during drought but also in response to stimuli as diverse as flooding, nutrient availability, temperature, or light. A general hydraulic control of plant tissue expansion by aquaporins is emerging, and their role in key developmental processes (seed germination, emergence of lateral roots) has been established. Plants with genetically altered aquaporin functions are now tested for their ability to improve plant tolerance to stresses. In conclusion, research on aquaporins delineates ever expanding fields in plant integrative biology thereby establishing their crucial role in plants.
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Affiliation(s)
- Christophe Maurel
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche 5004, CNRS/INRA/Montpellier SupAgro/Université de Montpellier, Montpellier, France
| | - Yann Boursiac
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche 5004, CNRS/INRA/Montpellier SupAgro/Université de Montpellier, Montpellier, France
| | - Doan-Trung Luu
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche 5004, CNRS/INRA/Montpellier SupAgro/Université de Montpellier, Montpellier, France
| | - Véronique Santoni
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche 5004, CNRS/INRA/Montpellier SupAgro/Université de Montpellier, Montpellier, France
| | - Zaigham Shahzad
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche 5004, CNRS/INRA/Montpellier SupAgro/Université de Montpellier, Montpellier, France
| | - Lionel Verdoucq
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche 5004, CNRS/INRA/Montpellier SupAgro/Université de Montpellier, Montpellier, France
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40
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Mao Z, Sun W. Arabidopsis seed-specific vacuolar aquaporins are involved in maintaining seed longevity under the control of ABSCISIC ACID INSENSITIVE 3. JOURNAL OF EXPERIMENTAL BOTANY 2015; 66:4781-94. [PMID: 26019256 PMCID: PMC4507774 DOI: 10.1093/jxb/erv244] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The tonoplast intrinsic proteins TIP3;1 and TIP3;2 are specifically expressed during seed maturation and localized to the seed protein storage vacuole membrane. However, the function and physiological roles of TIP3s are still largely unknown. The seed performance of TIP3 knockdown mutants was analysed using the controlled deterioration test. The tip3;1/tip3;2 double mutant was affected in seed longevity and accumulated high levels of hydrogen peroxide compared with the wild type, suggesting that TIP3s function in seed longevity. The transcription factor ABSCISIC ACID INSENSITIVE 3 (ABI3) is known to be involved in seed desiccation tolerance and seed longevity. TIP3 transcript and protein levels were significantly reduced in abi3-6 mutant seeds. TIP3;1 and TIP3;2 promoters could be activated by ABI3 in the presence of abscisic acid (ABA) in Arabidopsis protoplasts. TIP3 proteins were detected in the protoplasts transiently expressing ABI3 and in ABI3-overexpressing seedlings when treated with ABA. Furthermore, ABI3 directly binds to the RY motif of the TIP3 promoters. Therefore, seed-specific TIP3s may help maintain seed longevity under the expressional control of ABI3 during seed maturation and are members of the ABI3-mediated seed longevity pathway together with small heat shock proteins and late embryo abundant proteins.
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Affiliation(s)
- Zhilei Mao
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Fenglin Road 300, Shanghai, 200032, People's Republic of China
| | - Weining Sun
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Fenglin Road 300, Shanghai, 200032, People's Republic of China
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41
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Ariani A, Gepts P. Genome-wide identification and characterization of aquaporin gene family in common bean (Phaseolus vulgaris L.). Mol Genet Genomics 2015; 290:1771-85. [PMID: 25846963 DOI: 10.1007/s00438-015-1038-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 03/28/2015] [Indexed: 11/26/2022]
Abstract
Plant aquaporins are a large and diverse family of water channel proteins that are essential for several physiological processes in living organisms. Numerous studies have linked plant aquaporins with a plethora of processes, such as nutrient acquisition, CO2 transport, plant growth and development, and response to abiotic stresses. However, little is known about this protein family in common bean. Here, we present a genome-wide identification of the aquaporin gene family in common bean (Phaseolus vulgaris L.), a legume crop essential for human nutrition. We identified 41 full-length coding aquaporin sequences in the common bean genome, divided by phylogenetic analysis into five sub-families (PIPs, TIPs, NIPs, SIPs and XIPs). Residues determining substrate specificity of aquaporins (i.e., NPA motifs and ar/R selectivity filter) seem conserved between common bean and other plant species, allowing inference of substrate specificity for these proteins. Thanks to the availability of RNA-sequencing datasets, expression levels in different organs and in leaves of wild and domesticated bean accessions were evaluated. Three aquaporins (PvTIP1;1, PvPIP2;4 and PvPIP1;2) have the overall highest mean expressions, with PvTIP1;1 having the highest expression among all aquaporins. We performed an EST database mining to identify drought-responsive aquaporins in common bean. This analysis showed a significant increase in expression for PvTIP1;1 in drought stress conditions compared to well-watered environments. The pivotal role suggested for PvTIP1;1 in regulating water homeostasis and drought stress response in the common bean should be verified by further field experimentation under drought stress.
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Affiliation(s)
- Andrea Ariani
- Department of Plant Sciences/MS1, University of California, 1 Shields Avenue, Davis, CA, 95616-8780, USA.
| | - Paul Gepts
- Department of Plant Sciences/MS1, University of California, 1 Shields Avenue, Davis, CA, 95616-8780, USA
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42
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Xin S, Yu G, Sun L, Qiang X, Xu N, Cheng X. Expression of tomato SlTIP2;2 enhances the tolerance to salt stress in the transgenic Arabidopsis and interacts with target proteins. JOURNAL OF PLANT RESEARCH 2014; 127:695-708. [PMID: 25186161 DOI: 10.1007/s10265-014-0658-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 05/24/2014] [Indexed: 05/02/2023]
Abstract
Three independent transgenic Arabidopsis lines expressing SlTIP2;2 from Solanum lycopersicum L. cv. Lichun under the control of its endogenous promoter were used to analyze the expression of SlTIP2;2 and the salt stress tolerance under NaCl concentration gradient treatment. The expression patterns of SlTIP2;2 were shown to be tissue-specific and NaCl dose-dependent under salt stress. SlTIP2;2-transformed Arabidopsis plants exhibited enhanced salt stress tolerance, and the physiological parameters suggested that SlTIP2;2 has close links with the ion homeostasis and antioxidant enzymes activities in salt-stressed transgenic Arabidopsis. Moreover, SlTIP2;2 expression significantly affected the Na(+) and K(+) fluxes from the root meristematic zones and resulted in remarkable changes in the morphology of the pith ray cells in the inflorescence stems of transgenic Arabidopsis. Based on the yeast growth assay, β-galactosidase activity testing and bimolecular fluorescence complementation, SlTIP1;1, SlTIP2;1 and an UDP-galactose transporter were confirmed to interact with SlTIP2;2, which may greatly broaden our understanding of the physiological functions of aquaporins.
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Affiliation(s)
- Shichao Xin
- Key Lab of Plant Nutrition and Fertilizers, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, No. 12 South Street, Zhongguancun, Beijing, 100081, China
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43
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Novikova GV, Tournaire-Roux C, Sinkevich IA, Lityagina SV, Maurel C, Obroucheva N. Vacuolar biogenesis and aquaporin expression at early germination of broad bean seeds. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 82:123-32. [PMID: 24946225 DOI: 10.1016/j.plaphy.2014.05.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 05/24/2014] [Indexed: 05/25/2023]
Abstract
A key event in seed germination is water uptake-mediated growth initiation in embryonic axes. Vicia faba var. minor (broad bean) seeds were used for studying cell growth, vacuolar biogenesis, expression and function of tonoplast water channel proteins (aquaporins) in embryonic axes during seed imbibition, radicle emergence and growth. Hypocotyl and radicle basal cells showed vacuole restoration from protein storage vacuoles, whereas de novo vacuole formation from provacuoles was observed in cells newly produced by root meristem. cDNA fragments of seven novel aquaporin isoforms including five Tonoplast Intrinsic Proteins (TIP) from three sub-types were amplified by PCR. The expression was probed using q-RT-PCR and when possible with isoform-specific antibodies. Decreased expression of TIP3s was associated to the transformation of protein storage vacuoles to vacuoles, whereas enhanced expression of a TIP2 homologue was closely linked to the fast cell elongation. Water channel functioning checked by inhibitory test with mercuric chloride showed closed water channels prior to growth initiation and active water transport into elongating cells. The data point to a crucial role of tonoplast aquaporins during germination, especially during growth of embryonic axes, due to accelerated water uptake and vacuole enlargement resulting in rapid cell elongation.
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Affiliation(s)
- Galina V Novikova
- Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya str. 35, Moscow 127276, Russia
| | | | - Irina A Sinkevich
- Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya str. 35, Moscow 127276, Russia
| | - Snejana V Lityagina
- Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya str. 35, Moscow 127276, Russia
| | | | - Natalie Obroucheva
- Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya str. 35, Moscow 127276, Russia.
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44
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Genome-wide comparative analysis of tonoplast intrinsic protein (TIP) genes in plants. Funct Integr Genomics 2014; 14:617-29. [PMID: 25095751 DOI: 10.1007/s10142-014-0389-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 07/13/2014] [Accepted: 07/21/2014] [Indexed: 10/24/2022]
Abstract
Tonoplast intrinsic proteins (TIPs) play a vital role in water transport across membranes. In the present study, we performed a comparative analysis of TIP genes in ten plant species including both monocots and dicots. A total of 100 TIP aquaporin genes were identified, and their relationships among the plant species were analyzed. Phylogenetic analysis was performed to evaluate the relationship of these genes within the plant species. Based on the phylogenetic analysis results, TIPs were classified into five distinct arbitrary groups (group I to group V), which represented TIP2, TIP5, TIP4, TIP1, and TIP3, respectively. Group I represented the largest arbitrary group, followed by group IV, in the phylogenetic tree. The result clearly indicates that TIP2 and TIP1 are abundant aquaporins and highly related among the species. In the present review, a comparative study of gene structure analysis between dicots and monocots has been performed to analyze their structural variation. Most of the predicted motifs are conserved among the species, signifying an evolutionary relationship. The gene expression analysis indicated that the expression of TIP genes varies during different developmental stages and also during stressed conditions. The results indicated a great degree of evolutionary relationship and variation in the expression levels of TIPs in plants.
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45
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Zheng J, Han SW, Rodriguez-Welsh MF, Rojas-Pierce M. Homotypic vacuole fusion requires VTI11 and is regulated by phosphoinositides. MOLECULAR PLANT 2014; 7:1026-1040. [PMID: 24569132 DOI: 10.1093/mp/ssu019] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Most plant cells contain a large central vacuole that is essential to maintain cellular turgor. We report a new mutant allele of VTI11 that implicates the SNARE protein VTI11 in homotypic fusion of protein storage and lytic vacuoles. Fusion of the multiple vacuoles present in vti11 mutants could be induced by treatment with Wortmannin and LY294002, which are inhibitors of Phosphatidylinositol 3-Kinase (PI3K). We provide evidence that Phosphatidylinositol 3-Phosphate (PtdIns(3)P) regulates vacuole fusion in vti11 mutants, and that fusion of these vacuoles requires intact microtubules and actin filaments. Finally, we show that Wortmannin also induced the fusion of guard cell vacuoles in fava beans, where vacuoles are naturally fragmented after ABA-induced stomata closure. These results suggest a ubiquitous role of phosphoinositides in vacuole fusion, both during the development of the large central vacuole and during the dynamic vacuole remodeling that occurs as part of stomata movements.
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Affiliation(s)
- Jiameng Zheng
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC 27695, USA
| | - Sang Won Han
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC 27695, USA
| | | | - Marcela Rojas-Pierce
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC 27695, USA.
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46
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Khan D, Millar JL, Girard IJ, Belmonte MF. Transcriptional circuitry underlying seed coat development in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2014; 219-220:51-60. [PMID: 24576764 DOI: 10.1016/j.plantsci.2014.01.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 01/18/2014] [Accepted: 01/21/2014] [Indexed: 05/10/2023]
Abstract
We analyzed two sub-regions of the maternal seed coat, chalazal (CZSC) and distal (SC), using transcriptomic and histological analyses in the model plant Arabidopsis thaliana. Hierarchical clustering analysis showed that the CZSC and SC are transcriptionally distinct, though the two sub-regions are more similar during early stages of seed development. Robust statistical and network analysis revealed novel roles for both sub-regions during the course of the seed lifecycle and provides insight into the regulatory circuitry underlying these poorly studied sub-regions of the seed. Data show many of the processes that characterize the SC including starch deposition during the morphogenesis phase, and mucilage deposition and cell wall thickening during the maturation phase, are either absent or expressed to a much lesser extent in the CZSC. We further analyzed the CZSC in detail and show that this sub-region is likely involved in the control of information into the seed from the maternal plant and that some of these processes are predicted to operate through the activity of bZIP transcription factors through the G-box DNA sequence motif.
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Affiliation(s)
- Deirdre Khan
- Department of Biological Sciences, University of Manitoba, Winnipeg, Canada R3T 2N2
| | - Jenna L Millar
- Department of Biological Sciences, University of Manitoba, Winnipeg, Canada R3T 2N2
| | - Ian J Girard
- Department of Biological Sciences, University of Manitoba, Winnipeg, Canada R3T 2N2
| | - Mark F Belmonte
- Department of Biological Sciences, University of Manitoba, Winnipeg, Canada R3T 2N2.
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47
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Hollenbach B, Dietz KJ. Molecular Cloning ofemip, a Member of theMajor Intrinsic Protein(MIP) Gene Family, Preferentially Expressed in Epidermal Cells of Barley Leaves. ACTA ACUST UNITED AC 2014. [DOI: 10.1111/j.1438-8677.1995.tb00516.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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48
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Reuscher S, Akiyama M, Mori C, Aoki K, Shibata D, Shiratake K. Genome-wide identification and expression analysis of aquaporins in tomato. PLoS One 2013; 8:e79052. [PMID: 24260152 PMCID: PMC3834038 DOI: 10.1371/journal.pone.0079052] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 09/20/2013] [Indexed: 11/30/2022] Open
Abstract
The family of aquaporins, also called water channels or major intrinsic proteins, is characterized by six transmembrane domains that together facilitate the transport of water and a variety of low molecular weight solutes. They are found in all domains of life, but show their highest diversity in plants. Numerous studies identified aquaporins as important targets for improving plant performance under drought stress. The phylogeny of aquaporins is well established based on model species like Arabidopsis thaliana, which can be used as a template to investigate aquaporins in other species. In this study we comprehensively identified aquaporin encoding genes in tomato (Solanum lycopersicum), which is an important vegetable crop and also serves as a model for fleshy fruit development. We found 47 aquaporin genes in the tomato genome and analyzed their structural features. Based on a phylogenetic analysis of the deduced amino acid sequences the aquaporin genes were assigned to five subfamilies (PIPs, TIPs, NIPs, SIPs and XIPs) and their substrate specificity was assessed on the basis of key amino acid residues. As ESTs were available for 32 genes, expression of these genes was analyzed in 13 different tissues and developmental stages of tomato. We detected tissue-specific and development-specific expression of tomato aquaporin genes, which is a first step towards revealing the contribution of aquaporins to water and solute transport in leaves and during fruit development.
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Affiliation(s)
- Stefan Reuscher
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Japan
| | - Masahito Akiyama
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Japan
| | - Chiharu Mori
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Japan
| | - Koh Aoki
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho, Sakai, Japan
| | - Daisuke Shibata
- Kazusa DNA Research Institute, Kazusa-kamatari, Kisarazu, Japan
| | - Katsuhiro Shiratake
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Japan
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49
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Li G, Santoni V, Maurel C. Plant aquaporins: roles in plant physiology. Biochim Biophys Acta Gen Subj 2013; 1840:1574-82. [PMID: 24246957 DOI: 10.1016/j.bbagen.2013.11.004] [Citation(s) in RCA: 192] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 10/28/2013] [Accepted: 11/04/2013] [Indexed: 11/16/2022]
Abstract
BACKGROUND Aquaporins are membrane channels that facilitate the transport of water and small neutral molecules across biological membranes of most living organisms. SCOPE OF REVIEW Here, we present comprehensive insights made on plant aquaporins in recent years, pointing to their molecular and physiological specificities with respect to animal or microbial counterparts. MAJOR CONCLUSIONS In plants, aquaporins occur as multiple isoforms reflecting a high diversity of cellular localizations and various physiological substrates in addition to water. Of particular relevance for plants is the transport by aquaporins of dissolved gases such as carbon dioxide or metalloids such as boric or silicic acid. The mechanisms that determine the gating and subcellular localization of plant aquaporins are extensively studied. They allow aquaporin regulation in response to multiple environmental and hormonal stimuli. Thus, aquaporins play key roles in hydraulic regulation and nutrient transport in roots and leaves. They contribute to several plant growth and developmental processes such as seed germination or emergence of lateral roots. GENERAL SIGNIFICANCE Plants with genetically altered aquaporin functions are now tested for their ability to improve plant resistance to stresses. This article is part of a Special Issue entitled Aquaporins.
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Affiliation(s)
- Guowei Li
- Biochimie et Physiologie Moléculaire des Plantes, UMR 5004 CNRS/UMR 0386 INRA/Montpellier SupAgro/Université Montpellier 2, F-34060 Montpellier Cedex 2, France
| | - Véronique Santoni
- Biochimie et Physiologie Moléculaire des Plantes, UMR 5004 CNRS/UMR 0386 INRA/Montpellier SupAgro/Université Montpellier 2, F-34060 Montpellier Cedex 2, France
| | - Christophe Maurel
- Biochimie et Physiologie Moléculaire des Plantes, UMR 5004 CNRS/UMR 0386 INRA/Montpellier SupAgro/Université Montpellier 2, F-34060 Montpellier Cedex 2, France.
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50
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Gao L, Guo YJ. Isolation of a fruit ripening-related tonoplast aquaporin (GjTIP) gene from Gardenia jasminoides. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2013; 19:555-561. [PMID: 24431525 PMCID: PMC3781284 DOI: 10.1007/s12298-013-0191-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Aquaporins are membrane water channels that play critical roles in controlling the water content of cells and tissues. In this work, a full-length cDNA encoding putative aquaporins was isolated from Gardenia jasminoides fruit cDNA library. The GjTIP cDNA is 1188 bp, contains a predicted 774 bp open reading frame that encodes 257 amino acids. A phylogenetic analysis conducted with previously characterized aquaporins from other plant species indicates that the cDNA encode putative tonoplast aquaporins (TIPs), and proposed that GjTIP has a tendency to be a mixed function aquaporin similar to the TIP1s from Arabidopsis and Gossypium raimondii. A typical "hourglasses" three-dimensional model of GjTIP was built. The expression of the GjTIP transcripts at fruits during maturation was conducted by RT-PCR analysis. The data revealed that the transcript levels of GjTIP have increased during fruit maturation.
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Affiliation(s)
- Lan Gao
- School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006 Peoples Republic of China
| | - Yi-jun Guo
- School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006 Peoples Republic of China
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