The ABA Sensitivity and Drought Resistance of <i>AhBG1</i> Transgenic Arabidopsis

HUANG Yinglin; ZHANG Zhi; ZHANG Hongliang; HU Bo; LONG Haitao

doi:10.6054/j.jscnun.2021009

Journal of South China Normal University (Natural Science Edition) > 2021 > 53(1): 56-62. > DOI: 10.6054/j.jscnun.2021009

HUANG Yinglin, ZHANG Zhi, ZHANG Hongliang, HU Bo, LONG Haitao. The ABA Sensitivity and Drought Resistance of AhBG1 Transgenic Arabidopsis[J]. Journal of South China Normal University (Natural Science Edition), 2021, 53(1): 56-62. DOI: 10.6054/j.jscnun.2021009

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The ABA Sensitivity and Drought Resistance of AhBG1 Transgenic Arabidopsis

HUANG Yinglin¹,
ZHANG Zhi^{1, 2},
ZHANG Hongliang^{1, 2},
HU Bo^{1, 2},
LONG Haitao^1, ,

1.
School of Life Sciences, South China Normal University//Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, Guangzhou 510631
2.
SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd., Qingyuan 511517

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Received Date: April 27, 2020
Available Online: March 23, 2021

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Abstract

Abstract

To explore the effects of peanut gene AhBG1 on ABA sensitivity and drought resistance of Arabidopsis thaliana, the ABA sensitivity, ABA content, water loss rate, survival rate and expression levels of genes related to ABA homeostasis of AhBG1 transgenic Arabidopsis were detected under drought stress. The results showed that AhBG1 is a member of peanut β-glucosidase family, which is located in the cytoplasm. Compared with the wild type, the AhBG1 overexpression in Arabidopsis thaliana increased ABA level and drought survival rate under drought stress, enhanced expression of genes related to biosynthetic pathway and signal transduction pathway, and inhibited the expression of genes related to oxidative metabolic pathway. AhBG1 may catalyze ABA-GE to form ABA and thus increase ABA content in plants and influence the expression of ABA homeostasis-related genes to improve drought tolerance of plants.
- AhBG1,
- β-glucosidase,
- ABA sensitivity,
- drought resistance

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References

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