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Physiological, Transcriptomic, and Metabolic Responses of Ginkgo biloba L. to Drought, Salt, and Heat Stresses.


ABSTRACT: Ginkgo biloba L. is highly adaptable and resistant to a range of abiotic stressors, allowing its growth in various environments. However, it is unclear how G. biloba responds to common environmental stresses. We explored the physiological, transcriptomic, and metabolic responses of G. biloba to short-term drought, salt, and heat stresses. Proline, H2O2, and ABA contents, along with CAT activity, increased under all three types of stress. SOD activity increased under salt and heat stresses, while soluble protein and IAA contents decreased under drought and salt stresses. With respect to metabolites, D-glyceric acid increased in response to drought and salt stresses, whereas isomaltose 1, oxalamide, and threonine 2 increased under drought. Piceatannol 2,4-hydroxybutyrate and 1,3-diaminopropane increased under salt stress, whereas 4-aminobutyric acid 1 and galactonic acid increased in response to heat stress. Genes regulating nitrogen assimilation were upregulated only under drought, while the GRAS gene was upregulated under all three types of stressors. ARF genes were downregulated under heat stress, whereas genes encoding HSF and SPL were upregulated. Additionally, we predicted that miR156, miR160, miR172, and their target genes participate in stress responses. Our study provides valuable data for studying the multilevel response to drought, salinity, and heat in G. biloba.

SUBMITTER: Chang B 

PROVIDER: S-EPMC7761781 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Physiological, Transcriptomic, and Metabolic Responses of <i>Ginkgo biloba</i> L. to Drought, Salt, and Heat Stresses.

Chang Bang B   Ma Kaibiao K   Lu Zhaogeng Z   Lu Jinkai J   Cui Jiawen J   Wang Li L   Jin Biao B  

Biomolecules 20201203 12


<i>Ginkgo biloba</i> L. is highly adaptable and resistant to a range of abiotic stressors, allowing its growth in various environments. However, it is unclear how <i>G. biloba</i> responds to common environmental stresses. We explored the physiological, transcriptomic, and metabolic responses of <i>G. biloba</i> to short-term drought, salt, and heat stresses. Proline, H<sub>2</sub>O<sub>2</sub>, and ABA contents, along with CAT activity, increased under all three types of stress. SOD activity in  ...[more]

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