Role of Abscisic Acid Signaling in Drought Tolerance and Preharvest Sprouting Under Climate Change

Fujita, Yasunari; Nakashima, Kenichiro; Yoshida, Takuya; Fujita, Miki; Shinozaki, Kazuo; Yamaguchi‐Shinozaki, Kazuko

doi:10.1002/9783527675265.ch20

Cited by 10 publications

(9 citation statements)

References 209 publications

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“…In plants, bZIP transcription factors represent a divergent family of TFs which regulate several processes including light signaling, seed maturation, pathogen defence, flower development and abiotic stress signaling [51–52]. Extensive studies have confirmed the role of bZIP in ABA signaling in rice and it has been found to respond upon osmotic stress during vegetative growth [53]. Nevertheless, some bZIP have also been reported to induce salt stress resistance in Arabidopsis through interfering proteolysis and translocation from the endoplasmic reticulum to the nucleus and consequently up-regulation of salt stress genes [54].…”

Section: Resultsmentioning

confidence: 99%

In-silico study of biotic and abiotic stress-related transcription factor binding sites in the promoter regions of rice germin-like protein genes

et al. 2019

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Germin-like proteins (GLPs) are involved in biotic and abiotic stress tolerance in different plant species. Rice ( Oryza sativa L.) genome contains about 40 GLP family member proteins in nine chromosomes. Although some of the rice GLP ( OsGLP ) promoters have been studied through in silico analysis as well as experimentally, studies regarding the distribution pattern of the biotic and abiotic stress associated transcription factor binding sites (TFbs) in the promoter regions of OsGLP genes have not been attempted thoroughly. Several transcription factors (TFs) namely NAC, WRKY, bHLH, bZIP, MYB and AP2/ERF act as major TFs concerned with biotic as well as abiotic stress responses across various plant species. In the present study the in silico analysis was carried out using the 1.5 kilobases (kb) promoter regions from 40 different OsGLP genes for the presence of NAC, WRKY, bHLH, bZIP, MYB and AP2/ERF TFbs in it. Among various OsGLP gene promoters, OsGLP8-11 was found to contain highest number of tested TFbs in the promoter region whereas the promoter region of OsGLP5-1 depicted least amount of TFbs. Phylogenetic study of promoter regions of different OsGLP genes revealed four different clades. Our analyses could reveal the evolutionary significance of different OsGLP gene promoters. It can be presumed from the present findings as well as previous reports that OsGLP gene duplications and subsequent variations in the TFbs in OsGLP gene promoter regions might be the consequences of neofunctionalization of OsGLP genes and their promoters for biotic and abiotic stress tolerance in rice.

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Section: Resultsmentioning

confidence: 99%

In-silico study of biotic and abiotic stress-related transcription factor binding sites in the promoter regions of rice germin-like protein genes

et al. 2019

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“…Greater than half of the terrestrial region, consisting of the widespread portion of arable land, is susceptible to drought ( Kogan, 1997 ). ABA, a phytohormone involved in the regulation of abiotic stress pathways in plants, is responsible for the plant response toward stress situations and additionally involved in other developmental process for example seed dormancy ( Cutler et al, 2010 ; Fujita et al, 2011 , 2013 , 2014 ). Drought conditions create osmotic stress in organisms, which eventually cause desiccation and resistance to water uptake in plants.…”

Section: Aba and Abiotic Stress Signalingmentioning

confidence: 99%

“…The prime ABA-facilitated signaling pathway which incorporates PYR/PYL/RCARs, PP2Cs, SnRK2s, and bZIP transcription factors are fortunately classified under in vitro condition ( Fujita et al, 2014 ). In short, major ABA signaling components actively regulates both fast and slow ABA communication pathway to tackle dehydration.…”

Section: Aba and Abiotic Stress Signalingmentioning

confidence: 99%

Abscisic Acid Signaling and Abiotic Stress Tolerance in Plants: A Review on Current Knowledge and Future Prospects

et al. 2017

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Abiotic stress is one of the severe stresses of environment that lowers the growth and yield of any crop even on irrigated land throughout the world. A major phytohormone abscisic acid (ABA) plays an essential part in acting toward varied range of stresses like heavy metal stress, drought, thermal or heat stress, high level of salinity, low temperature, and radiation stress. Its role is also elaborated in various developmental processes including seed germination, seed dormancy, and closure of stomata. ABA acts by modifying the expression level of gene and subsequent analysis of cis-and trans-acting regulatory elements of responsive promoters. It also interacts with the signaling molecules of processes involved in stress response and development of seeds. On the whole, the stress to a plant can be susceptible or tolerant by taking into account the coordinated activities of various stress-responsive genes. Numbers of transcription factor are involved in regulating the expression of ABA responsive genes by acting together with their respective cis-acting elements. Hence, for improvement in stresstolerance capacity of plants, it is necessary to understand the mechanism behind it. On this ground, this article enlightens the importance and role of ABA signaling with regard to various stresses as well as regulation of ABA biosynthetic pathway along with the transcription factors for stress tolerance.

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“…For example, the ninja-family protein AFP3 gene (associated with the NS SNP j5880) has been shown to be a negative regulator of abscisic acid (ABA) response, and the chromatin remodelling gene (associated with the NS SNP j3344) has been linked to regulation of ABA and stress tolerance (Sridha & Wu, 2006). ABA is known to play a major role to drought response in plants (Fujita et al, 2013) by controlling stomatal closure (Assmann & Jegla, 2016), and the hormones ABA and ethylene are known to control growth when under drought stress (Humplík, Bergougnoux, & Volkenburgh, 2017;Valluru, Davies, Reynolds, & Dodd, 2016). There are many functions, aside from drought stress response, associated with the ABA phytohormone (Humplík et al, 2017), indicating that the genes regulating ABA are likely pleiotropic.…”

Section: Gene Functionmentioning

confidence: 99%

Standing genomic variation within coding and regulatory regions contributes to the adaptive capacity to climate in a foundation tree species

2019

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Global climate is rapidly changing, and the ability for tree species to adapt is dependent on standing genomic variation; however, the distribution and abundance of functional and adaptive variants are poorly understood in natural systems. We test key hypotheses regarding the genetics of adaptive variation in a foundation tree: genomic variation is associated with climate, and genomic variation is more likely to be associated with temperature than precipitation or aridity. To test these hypotheses, we used 9,593 independent, genomic single‐nucleotide polymorphisms (SNPs) from 270 individuals sampled from Corymbia calophylla's entire distribution in south‐western Western Australia, spanning orthogonal temperature and precipitation gradients. Environmental association analyses returned 537 unique SNPs putatively adaptive to climate. We identified SNPs associated with climatic variation (i.e., temperature [458], precipitation [75] and aridity [78]) across the landscape. Of these, 78 SNPs were nonsynonymous (NS), while 26 SNPs were found within gene regulatory regions. The NS and regulatory candidate SNPs associated with temperature explained more deviance (27.35%) than precipitation (5.93%) and aridity (4.77%), suggesting that temperature provides stronger adaptive signals than precipitation. Genes associated with adaptive variants include functions important in stress responses to temperature and precipitation. Patterns of allelic turnover of NS and regulatory SNPs show small patterns of change through climate space with the exception of an aldehyde dehydrogenase gene variant with 80% allelic turnover with temperature. Together, these findings provide evidence for the presence of adaptive variation to climate in a foundation species and provide critical information to guide adaptive management practices.

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Role of Abscisic Acid Signaling in Drought Tolerance and Preharvest Sprouting Under Climate Change

Cited by 10 publications

References 209 publications

In-silico study of biotic and abiotic stress-related transcription factor binding sites in the promoter regions of rice germin-like protein genes

In-silico study of biotic and abiotic stress-related transcription factor binding sites in the promoter regions of rice germin-like protein genes

Abscisic Acid Signaling and Abiotic Stress Tolerance in Plants: A Review on Current Knowledge and Future Prospects

Standing genomic variation within coding and regulatory regions contributes to the adaptive capacity to climate in a foundation tree species

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