GEm-Related 5 (GER5), an ABA and stress-responsive GRAM domain protein regulating seed development and inflorescence architecture

Baron, Kevin; Schroeder, Dana F.; Stasolla, Claudio

doi:10.1016/j.plantsci.2014.03.017

Cited by 36 publications

(25 citation statements)

References 66 publications

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“…In white lupin, two GdpDs were shown to be associated with root hair development and phosphorus deficiency tolerance 57 , which may be linked to drought response due to reduced nutrient diffusion under drought 58 59 . Similarly, an Arabidopsis Gram Domain Protein (GDP; a likely ortholog of OsGDP 12.1 ) was shown to be ABA- and stress-responsive and affected reproductive development 60 . A rice homolog of OsWAK 12.1 was also associated with female gametophyte development 61 , while silencing of another OsWAK led to abnormal root development and anther indehiscence 20 .…”

Section: Discussionmentioning

confidence: 99%

Action of multiple intra-QTL genes concerted around a co-localized transcription factor underpins a large effect QTL

Dixit

Biswal

Min

et al. 2015

Sci Rep

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Sub-QTLs and multiple intra-QTL genes are hypothesized to underpin large-effect QTLs. Known QTLs over gene families, biosynthetic pathways or certain traits represent functional gene-clusters of genes of the same gene ontology (GO). Gene-clusters containing genes of different GO have not been elaborated, except in silico as coexpressed genes within QTLs. Here we demonstrate the requirement of multiple intra-QTL genes for the full impact of QTL qDTY12.1 on rice yield under drought. Multiple evidences are presented for the need of the transcription factor ‘no apical meristem’ (OsNAM12.1) and its co-localized target genes of separate GO categories for qDTY12.1 function, raising a regulon-like model of genetic architecture. The molecular underpinnings of qDTY12.1 support its effectiveness in further improving a drought tolerant genotype and for its validity in multiple genotypes/ecosystems/environments. Resolving the combinatorial value of OsNAM12.1 with individual intra-QTL genes notwithstanding, identification and analyses of qDTY12.1has fast-tracked rice improvement towards food security.

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Section: Discussionmentioning

confidence: 99%

Action of multiple intra-QTL genes concerted around a co-localized transcription factor underpins a large effect QTL

Dixit

Biswal

Min

et al. 2015

Sci Rep

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“…Several seed-specific transcription factors are expressed during desiccation in Oropetium (Supporting Information Table S6). This includes homologs of ABI3 (Parcy et al 1994;González-Morales et al 2016), DELAY OF GERMINATION 1 (DOG1) (Bentsink et al 2006), GEM-RELATED 5 (GER5) (Baron et al 2014) and EMB1 (Ulrich et al 1990).…”

Section: Seed-specific Transcription Factorsmentioning

confidence: 99%

Seed desiccation mechanisms co‐opted for vegetative desiccation in the resurrection grass Oropetium thomaeum

VanBuren

Wai

Zhang

et al. 2017

Plant Cell & Environment

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Resurrection plants desiccate during periods of prolonged drought stress, then resume normal cellular metabolism upon water availability. Desiccation tolerance has multiple origins in flowering plants, and it likely evolved through rewiring seed desiccation pathways. Oropetium thomaeum is an emerging model for extreme drought tolerance, and its genome, which is the smallest among surveyed grasses, was recently sequenced. Combining RNA-seq, targeted metabolite analysis and comparative genomics, we show evidence for co-option of seed-specific pathways during vegetative desiccation. Desiccation-related gene co-expression clusters are enriched in functions related to seed development including several seed-specific transcription factors. Across the metabolic network, pathways involved in programmed cell death inhibition, ABA signalling and others are activated during dehydration. Oleosins and oil bodies that typically function in seed storage are highly abundant in desiccated leaves and may function for membrane stability and storage. Orthologs to seed-specific LEA proteins from rice and maize have neofunctionalized in Oropetium with high expression during desiccation. Accumulation of sucrose, raffinose and stachyose in drying leaves mirrors sugar accumulation patterns in maturing seeds. Together, these results connect vegetative desiccation with existing seed desiccation and drought responsive pathways and provide some key candidate genes for engineering improved drought tolerance in crop plants.

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“…GSTU3 displays increased expression in response to abiotic stress conditions [37]. Similarly, the expression of GER5 is induced by ABA and abiotic stress and is required for growth and development in Arabidopsis [38].…”

Section: Effects Of 17β-estradiol Application On Stress-related Gene mentioning

confidence: 99%

Alleviation of Drought Stress in <i>Arabidopsis thaliana</i> by 17<i>β</i>-Estradiol Application

Upadhyay¹,

Maier²

2016

AJPS

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Animal steroidal hormones, including estrogens, are being introduced into the agricultural soil and water supply from increased pharmaceutical and farm waste. Considering the current levels of xenoestrogen contamination of plant environments in view of the climate change induced drought conditions, this study was designed to understand the effect of estradiol (ES) application on Arabidopsis drought stress responses. Estradiol treatment (10 nM, 100 nM) of plants subjected to drought stress conditions by withholding water for 7 days resulted in increased tolerance to drought stress reflected in the significantly higher plant survival rates of 74% and 78%, respectively compared to control plants' survival rates of 36% (no treatment) and 40% (mock treatment). Estradiol application significantly increased the content of glutathione, proline and H 2 O 2 and significantly enhanced the transcription of the stress responsive genes GSTU3, GER5, HSP101, and HSP70b. A high concentration of ES (10 µM) did not protect plants against drought stress and proved to be toxic. These results provide new insight into the effect of ES on drought-stress responses in Arabidopsis with possible practical agricultural applications regarding the effect of environmental estrogens on crop plants.

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GEm-Related 5 (GER5), an ABA and stress-responsive GRAM domain protein regulating seed development and inflorescence architecture

Cited by 36 publications

References 66 publications

Action of multiple intra-QTL genes concerted around a co-localized transcription factor underpins a large effect QTL

Action of multiple intra-QTL genes concerted around a co-localized transcription factor underpins a large effect QTL

Seed desiccation mechanisms co‐opted for vegetative desiccation in the resurrection grass Oropetium thomaeum

Alleviation of Drought Stress in <i>Arabidopsis thaliana</i> by 17<i>β</i>-Estradiol Application

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GEm-Related 5 (GER5), an ABA and stress-responsive GRAM domain protein regulating seed development and inflorescence architecture

Cited by 36 publications

References 66 publications

Action of multiple intra-QTL genes concerted around a co-localized transcription factor underpins a large effect QTL

Action of multiple intra-QTL genes concerted around a co-localized transcription factor underpins a large effect QTL

Seed desiccation mechanisms co‐opted for vegetative desiccation in the resurrection grass Oropetium thomaeum

Alleviation of Drought Stress in &lt;i&gt;Arabidopsis thaliana&lt;/i&gt; by 17&lt;i&gt;β&lt;/i&gt;-Estradiol Application

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Alleviation of Drought Stress in <i>Arabidopsis thaliana</i> by 17<i>β</i>-Estradiol Application