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Author Liang J., Guo S., Sun B., Liu Q., Chen X., Peng H., Zhang Z., Xie Q.
Title Constitutive expression of REL1 confers the rice response to drought stress and abscisic acid.
Abstract:
leaf rolling is one of the most significant symptoms of drought stress in plant. Previously, we identified a dominant negative mutant, termed rolled and erect 1 (hereafter referred to REL1-D), regulating leaf rolling and erectness in rice. However, the role of REL1 in drought response is still poorly understood. Here, our results indicated that REL1-D displayed higher tolerance to drought relative to wild type, and the activity of superoxide dismutase (SOD) and drought responsive genes were significantly up-regulated in REL1-D. Moreover, our results revealed that REL1-D was hypersensitive to ABA and the expression of ABA associated genes was significantly increased in REL1-D, suggesting that REL1 likely coordinates ABA to regulate drought response. Using the RNA-seq approach, we identified a large group of differentially expressed genes that regulate stimuli and stresses response. Consistently, we also found that constitutive expression of REL1 alters the expression of biotic and abiotic stress responsive genes by the isobaric tags for relative and absolute quantification (iTRAQ) analysis. Integrative analysis demonstrated that 8 genes/proteins identified by both RNA-seq and iTRAQ would be the potential targets in term of the REL1-mediated leaf morphology. Together, we proposed that leaf rolling and drought tolerance of REL1-D under normal condition might be caused by the endogenously perturbed homeostasis derived from continuous stressful dynamics.
Journal Rice (N Y)
Country China
Volume 11(1)
Pages 59
Year 2018
PubMed ID 30361842
PubMed Central ID 6202306
DOI 10.1186/s12284-018-0251-0
URL -
Relation
Gene ACL2 DREB1A DT11 GLP8-7 PIP1;2 PIP1A REL1 RSUS2 SAPK2 _ _
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
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Stages in Each Organ
- Muant Lines (Gene)
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Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
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