<i>Arabidopsis</i>seed-specific vacuolar aquaporins are involved in maintaining seed longevity under the control of<i>ABSCISIC ACID INSENSITIVE 3</i>

Mao, Zhilei; Sun, Weining

doi:10.1093/jxb/erv244

Cited by 62 publications

(56 citation statements)

References 66 publications

(86 reference statements)

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“…In maturing seeds, auxins might enhance seed longevity by destabilizing HaIAA27 and increasing HSFA9 expression (Carranco et al, ). In addition, seeds of the tip3;1/tip3;2 double mutant accumulate hydrogen peroxide to a high concentration and negatively affect seed longevity, whereas ABI3 directly binds to the TIP promoters in the presence of ABA and induces their expression (Mao & Sun, ).…”

Section: Physiological and Genetic Factors Are Involved In Seed Longementioning

confidence: 99%

“…The detailed mechanisms by which seed deterioration occurs and the interactions between environmental cues and genetic factors still need further investigation. For instance, the mutant abi3 seed is known to exhibit shorter dormancy and shorter seed longevity (Mao & Sun, ), suggesting that the degree of seed dormancy level may be positively associated with seed longevity. Cell metabolism is largely inactive during seed dormancy so that much of the energy stored in the seed is maintained (Penfield, ), and this may be one of the most important factors to explain the relationship between seed dormancy and longevity, but the underlying regulatory mechanism and relationship between seed dormancy and longevity are still largely unknown.…”

Section: Concluding Remarks and Perspectivesmentioning

confidence: 99%

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A matter of life and death: Molecular, physiological, and environmental regulation of seed longevity

Zhou

Chen

Luo

et al. 2019

Plant Cell & Environment

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Both seed germination and early seedling establishment are important biological processes in a plant's lifecycle. Seed longevity is a key trait in agriculture, which directly influences seed germination and ultimately determines crop productivity and hence food security. Numerous studies have demonstrated that seed deterioration is regulated by complex interactions between diverse endogenous genetically controlled factors and exogenous environmental cues, including temperature, relative humidity, and oxygen partial pressure during seed storage. The endogenous factors, including the chlorophyll concentration, the structure of the seed coat, the balance of phytohormones, the concentration of reactive oxygen species, the integrity of nucleic acids and proteins and their associated repair systems, are also involved in the control of seed longevity. A precise understanding of the regulatory mechanisms underlying seed longevity is becoming a hot topic in plant molecular biology. In this review, we describe recent research into the regulation of seed longevity and the interactions between the various environmental and genetic factors. Based on this, the current state‐of‐play regarding seed longevity regulatory networks will be presented, particularly with respect to agricultural seed storage, and the research challenges to be faced in the future will be discussed.

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Section: Physiological and Genetic Factors Are Involved In Seed Longementioning

confidence: 99%

Section: Concluding Remarks and Perspectivesmentioning

confidence: 99%

A matter of life and death: Molecular, physiological, and environmental regulation of seed longevity

Zhou

Chen

Luo

et al. 2019

Plant Cell & Environment

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“…Apart from the water transport, AQPs are also involved in different physiological processes such as seed longevity and seed viability (Mao and Sun, 2015), sexual reproduction/anther dehiscence (Bots et al, 2005), photosynthesis, and stomatal and mesophyll conductance (Perez-Martin et al, 2014), cell elongation (Yang and Cui, 2009), and responses to diverse biotic and abiotic stress treatments (Jang et al, 2004; Peng et al, 2007; Montalvo-Hernández et al, 2008; Aroca et al, 2012; Khan et al, 2015). …”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Analysis of the Aquaporin Gene Family in Chickpea (Cicer arietinum L.)

Deokar

Tar’an

2016

Front. Plant Sci.

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Aquaporins (AQPs) are essential membrane proteins that play critical role in the transport of water and many other solutes across cell membranes. In this study, a comprehensive genome-wide analysis identified 40 AQP genes in chickpea (Cicer arietinum L.). A complete overview of the chickpea AQP (CaAQP) gene family is presented, including their chromosomal locations, gene structure, phylogeny, gene duplication, conserved functional motifs, gene expression, and conserved promoter motifs. To understand AQP's evolution, a comparative analysis of chickpea AQPs with AQP orthologs from soybean, Medicago, common bean, and Arabidopsis was performed. The chickpea AQP genes were found on all of the chickpea chromosomes, except chromosome 7, with a maximum of six genes on chromosome 6, and a minimum of one gene on chromosome 5. Gene duplication analysis indicated that the expansion of chickpea AQP gene family might have been due to segmental and tandem duplications. CaAQPs were grouped into four subfamilies including 15 NOD26-like intrinsic proteins (NIPs), 13 tonoplast intrinsic proteins (TIPs), eight plasma membrane intrinsic proteins (PIPs), and four small basic intrinsic proteins (SIPs) based on sequence similarities and phylogenetic position. Gene structure analysis revealed a highly conserved exon-intron pattern within CaAQP subfamilies supporting the CaAQP family classification. Functional prediction based on conserved Ar/R selectivity filters, Froger's residues, and specificity-determining positions suggested wide differences in substrate specificity among the subfamilies of CaAQPs. Expression analysis of the AQP genes indicated that some of the genes are tissue-specific, whereas few other AQP genes showed differential expression in response to biotic and abiotic stresses. Promoter profiling of CaAQP genes for conserved cis-acting regulatory elements revealed enrichment of cis-elements involved in circadian control, light response, defense and stress responsiveness reflecting their varying pattern of gene expression and potential involvement in biotic and abiotic stress responses. The current study presents the first detailed genome-wide analysis of the AQP gene family in chickpea and provides valuable information for further functional analysis to infer the role of AQP in the adaptation of chickpea in diverse environmental conditions.

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“…Actually, the intersections between ABA and AQPs have already been reported in other species. In Arabidopsis, AQPs functioned in ABA-triggered stomatal closure [36], and the vacuolar aquaporins were able to maintain seed longevity under the control of ABA [50]. In addition, ABA also could influence the phosphorylation of PIPs to regulate their activities [51].…”

Section: Discussionmentioning

confidence: 99%

The Tonoplast Intrinsic Protein Gene KvTIP3 is Responsive to Different Abiotic Stresses in Kosteletzkya virginica

Liu

Cheng

Jiang

et al. 2020

BioMed Research International

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In higher plants, aquaporin proteins (AQPs) play important roles in the uptake of water across cell membranes. However, their functions in halophytes are still largely unknown. In this work, we isolated, cloned, and identified KvTIP3, a tonoplast intrinsic protein gene from Kosteletzkya virginica. Bioinformatic analyses demonstrated that KvTIP3 encoded a tonoplast protein with the common properties of AQPs. Further multiple sequence alignment and phylogenetic analyses showed that KvTIP3 shared 65%–82% homology with other AQPs from Arabidopsis, cotton, polar, and cocoa. Quantitative real-time PCR (qPCR) analyses revealed that KvTIP3 was ubiquitously expressed in various tissues such as leaves, stems, and roots, with a predominant expression in roots. In addition, KvTIP3 transcript was strongly induced by NaCl, low temperature, and ABA in K. virginica. Our findings suggest that KvTIP3 encodes a new AQP possibly involved in multiple abiotic stress responses in K. virginica, and KvTIP3 could be used as a potential candidate gene for the improvement of plants resistant to various abiotic stresses.

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Arabidopsisseed-specific vacuolar aquaporins are involved in maintaining seed longevity under the control ofABSCISIC ACID INSENSITIVE 3

Abstract: Highlight Arabidopsis tonoplast intrinsic protein TIP3;1 and TIP3;2 are shown to play a role in seed longevity under the transcriptional control of ABI3.

Cited by 62 publications

References 66 publications

A matter of life and death: Molecular, physiological, and environmental regulation of seed longevity

A matter of life and death: Molecular, physiological, and environmental regulation of seed longevity

Genome-Wide Analysis of the Aquaporin Gene Family in Chickpea (Cicer arietinum L.)

The Tonoplast Intrinsic Protein Gene KvTIP3 is Responsive to Different Abiotic Stresses in Kosteletzkya virginica

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