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The role of ethylene in metabolic acclimations to low oxygen
Author(s) -
Hartman Sjon,
Sasidharan Rashmi,
Voesenek Laurentius A. C. J.
Publication year - 2021
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/nph.16378
Subject(s) - ethylene , hypoxia (environmental) , regulator , oxygen , plant hormone , acclimatization , economic shortage , microbiology and biotechnology , reactive oxygen species , biology , transcription factor , fight or flight response , chemistry , botany , biochemistry , gene , linguistics , philosophy , organic chemistry , government (linguistics) , catalysis
Summary Submerged plants ultimately suffer from shortage in cellular oxygen availability (hypoxia) as a result of impaired gas diffusion underwater. The gaseous plant hormone ethylene is rapidly entrapped in submerged plant tissues and is an established regulator of morphological and anatomical flood‐adaptive responses. Multiple recent discoveries suggest that ethylene also plays a crucial role in hypoxia anticipation and metabolic acclimation during plant submergence. Ethylene was shown to accelerate and enhance the hypoxic response through enhanced stability of specific transcription factors (group VII ethylene response factors). Moreover, we suggest that ethylene could play an important role in the induction of autophagy and promote reactive oxygen species amelioration, thereby contributing to enhanced survival during flooding, hypoxia, and reoxygenation stress.