Influence of shrub root combinations and spacing on slope stability: study case at the Yongding River flooding regime, Langfang, China
In: Environmental science and pollution research: ESPR, Band 29, Heft 46, S. 69599-69617
ISSN: 1614-7499
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In: Environmental science and pollution research: ESPR, Band 29, Heft 46, S. 69599-69617
ISSN: 1614-7499
In: APSUSC-D-22-00123
SSRN
In: Environmental science and pollution research: ESPR, Band 28, Heft 41, S. 58035-58049
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 246, S. 114149
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 263, S. 115386
ISSN: 1090-2414
In: Environmental sciences Europe: ESEU, Band 35, Heft 1
ISSN: 2190-4715
AbstractCytokinin oxidase/dehydrogenase (CKX) is a key regulatory enzyme for the irreversible degradation of the plant hormone cytokinin (CK), which is important in growth and development and response to abiotic stresses in cotton. In this study, 27, 28, 14 and 14 CKXs were screened by FAD structural domain and cytokinin binding structural domain in Gossypium hirsutum, Gossypium barbadense, Gossypium arboreum and Gossypium raimondii, respectively. Their phylogenetic relationships and expression patterns were analyzed, and most GhCKXs were found to be tissue-specific and responsive to various abiotic stresses such as cold, heat, salt and PEG. GhCKX6b-Dt was selected for gene silencing in evolutionary branch II for salt stress, because its expression increased after salt stress in cotton plants. An increase in PRO and MDA content and a decrease in SOD activity due to this gene were found after inducing salt stress, contributing to oxidative damage and decreased salt tolerance. In this study, CKXs were analyzed to reveal the possible role of GhCKXs against abiotic stresses in cotton, which provides a basis for further understanding of the biological functions of CK in plants such as growth and development and stress resistance.