Changes in Ethylene, ABA and Sugars Regulate Freezing Tolerance under Low-Temperature Waterlogging in Lolium perenne

Autor: Izabela Kościk, Franciszek Janowiak, Ewa Pociecha, Marcin Rapacz, Barbara Jurczyk, Michał Dziurka
Jazyk: angličtina
Rok vydání: 2021
Předmět:
0106 biological sciences
0301 basic medicine
Ethylene
Acclimatization
01 natural sciences
chemistry.chemical_compound
Gene Expression Regulation
Plant
Freezing
ethylene
Biology (General)
Abscisic acid
Spectroscopy
Overwintering
Plant Proteins
biology
perennial ryegrass
cold acclimation
food and beverages
General Medicine
Computer Science Applications
Horticulture
Chemistry
ABA
Waterlogging (agriculture)
Stomatal conductance
QH301-705.5
Lolium perenne
Article
Catalysis
Inorganic Chemistry
03 medical and health sciences
Stress
Physiological
Cold acclimation
Physical and Theoretical Chemistry
Molecular Biology
QD1-999
Plant Physiological Phenomena
fungi
Organic Chemistry
Water
Biological Transport
Ethylenes
biology.organism_classification
freezing tolerance
waterlogging
030104 developmental biology
chemistry
Sugars
Hardiness (plants)
Abscisic Acid
010606 plant biology & botany
Zdroj: International Journal of Molecular Sciences
Volume 22
Issue 13
International Journal of Molecular Sciences, Vol 22, Iss 6700, p 6700 (2021)
ISSN: 1422-0067
DOI: 10.3390/ijms22136700
Popis: Plant overwintering may be affected in the future by climate change. Low-temperature waterlogging, associated with a predicted increase in rainfall during autumn and winter, can affect freezing tolerance, which is the main component of winter hardiness. The aim of this study was to elucidate the mechanism of change in freezing tolerance caused by low-temperature waterlogging in Lolium perenne, a cool-season grass that is well adapted to a cold climate. The work included: (i) a freezing tolerance test (plant regrowth after freezing)
(ii) analysis of plant phytohormones production (abscisic acid [ABA] content and ethylene emission)
(iii) measurement of leaf water content and stomatal conductance
(iv) carbohydrate analysis
and (v) analysis of Aco1, ABF2, and FT1 transcript accumulation. Freezing tolerance may be improved as a result of cold waterlogging. The mechanism of this change is reliant on multifaceted actions of phytohormones and carbohydrates, whereas ethylene may counteract ABA signaling. The regulation of senescence processes triggered by concerted action of phytohormones and glucose signaling may be an essential component of this mechanism.
Databáze: OpenAIRE
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