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Exogenous Methyl Jasmonate Improves Cold Tolerance with Parallel Induction of Two Cold-Regulated ( COR ) Genes Expression in Triticum aestivum L

Repkina, Natalia ; Ignatenko, Anna ; Holoptseva, Ekaterina ; MiszalskI, Zbigniew ; Kaszycki, Paweł ; Talanova, Vera

Plants (Basel), 2021-07, Vol.10 (7), p.1421 [Periódico revisado por pares]

Switzerland: MDPI AG

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Título:
Exogenous Methyl Jasmonate Improves Cold Tolerance with Parallel Induction of Two Cold-Regulated ( COR ) Genes Expression in Triticum aestivum L
Autor: Repkina, Natalia ; Ignatenko, Anna ; Holoptseva, Ekaterina ; MiszalskI, Zbigniew ; Kaszycki, Paweł ; Talanova, Vera
Assuntos: Abiotic stress ; Antioxidants ; Biosynthesis ; Cold ; Cold tolerance ; Enzymes ; Exposure ; Fruits ; gene ; Gene expression ; Genes ; Growth regulators ; Hydrogen peroxide ; Lipid peroxidation ; Lipids ; Low temperature ; Malondialdehyde ; Methyl jasmonate ; Photosynthesis ; Physiology ; phytohormone ; Plant growth ; Polyamines ; Proline ; Roles ; Seedlings ; Superoxide dismutase ; Temperature tolerance ; tolerance ; Transcription factors ; Wheat
É parte de: Plants (Basel), 2021-07, Vol.10 (7), p.1421
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
Descrição: Methyl jasmonate (MJ) is an important plant growth regulator that plays a key role in tolerance to biotic and abiotic stresses. In this research, the effects of exogenous MJ on cold tolerance, photosynthesis, activity and gene expression of antioxidant enzymes, proline accumulation, and expression of cold-regulated ( ) genes in wheat seedlings under low temperature (4 °C) were investigated. Exogenous MJ treatment (1 µM) promoted wheat cold tolerance before and during cold exposure. Low temperature significantly decreased photosynthetic parameters, whereas MJ application led to their partial recovery under cold exposure. Hydrogen peroxide (H O ) and malondialdehyde (MDA) levels increased in response to low temperature, and this was counteracted by MJ application. Exogenous MJ significantly enhanced the activities of antioxidant enzymes and upregulated the expression of and during cold exposure. MJ application also led to enhanced proline content before 4 °C exposure, whereas the gene expression was upregulated by MJ's presence at both normal (22 °C) and low (4 °C) temperatures. It was also shown that MJ tended to upregulate the expression of the genes and genes. We conclude that exogenous MJ can alleviate the negative effect of cold stress thus increasing wheat cold tolerance.
Editor: Switzerland: MDPI AG
Idioma: Inglês

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Exogenous Methyl Jasmonate Improves Cold Tolerance with Parallel Induction of Two Cold-Regulated ( COR ) Genes Expression in Triticum aestivum L

Repkina, Natalia ; Ignatenko, Anna ; Holoptseva, Ekaterina ; MiszalskI, Zbigniew ; Kaszycki, Paweł ; Talanova, Vera

Switzerland: MDPI AG

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