Rice mutants deficient in ω -3 fatty acid desaturase (FAD8) fail to acclimate to cold temperatures

Tovuu, Altanzaya; Zulfugarov, Ismayil S.; Wu, Guangxi; Kang, In Soon; Kim, Choongrak; Moon, Byoung Yong; An, Gynheung; Lee, Choon-Hwan

doi:10.1016/j.plaphy.2016.11.001

Cited by 50 publications

(38 citation statements)

References 38 publications

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“…54 Omega-3 fatty acid desaturase was hypothesized to play a crucial role in acclimation of higher plants to cold stress; rice mutants deficient in omega-3 fatty acid desaturase were unable to acclimate to low temperatures, unlike wild-type plants. 55 Maintenance of intracellular lipid homeostasis when subjected to environmental stresses is vital for retention of normal membrane structure and function. 56 In Arabidopsis, sugar-dependent1 (SDP1) encodes a triacylglycerol (TAG) lipase that is involved in directing free fatty acids towards -oxidation; it thereby helps to maintain wileyonlinelibrary.com/jsfa…”

Section: Transcriptomic Changes Related To Acquisition Of Chilling Tomentioning

confidence: 99%

“…Furthermore, fad2 mutants in Arabidopsis were shown to be chilling sensitive, and in contrast, overexpression of FAD2 in transgenic rice plants improved chilling resistance . Omega‐3 fatty acid desaturase was hypothesized to play a crucial role in acclimation of higher plants to cold stress; rice mutants deficient in omega‐3 fatty acid desaturase were unable to acclimate to low temperatures, unlike wild‐type plants . Maintenance of intracellular lipid homeostasis when subjected to environmental stresses is vital for retention of normal membrane structure and function .…”

Section: Introductionmentioning

confidence: 99%

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Molecular mechanisms involved in postharvest chilling tolerance of pomegranate fruit

2019

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Cold storage of pomegranates is essential for prolonging postharvest storage and for the implementation of cold‐quarantine insect disinfestation treatments required for international trading. However, pomegranates are chilling sensitive; they may develop chilling injuries upon exposure to unfavorable low temperatures. In this mini‐review, we summarize molecular data obtained from three different RNA Seq transcriptome analyses of responses of pomegranate fruits to cold storage. These experiments included comparisons among the transcriptomic responses following a 2‐week exposure to 1 °C in three different model systems: 1) unconditioned chilling‐sensitive fruits versus relatively chilling‐tolerant low‐temperature‐conditioned fruits; 2) chilling‐sensitive early harvested fruits versus relatively chilling‐tolerant late‐harvested ones; and 3) chilling‐sensitive ‘Ganesh’ variety versus the relatively chilling‐tolerant ‘Wonderful’ variety. Comparisons among differentially expressed transcripts that were exclusively and significantly up‐regulated in the relatively chilling‐tolerant fruits in all three model systems enabled identification of 573 common chilling tolerance‐associated genes in pomegranates. Functional categorization and classification of the differentially expressed transcripts revealed several regulatory, metabolic, and stress‐adaptation pathways that were uniquely activated in response to cold storage in relatively chilling‐tolerant fruits. More specifically, we identified common up‐regulation of transcripts involved in activation of jasmonic acid and ethylene hormone biosynthesis and signaling, stress‐related transcription factors, calcium and MAPK signaling, starch degradation and galactinol and raffinose biosynthesis, phenol biosynthesis, lipid metabolism, and heat‐shock proteins. We hypothesized these pathways to be involved in imparting chilling tolerance to pomegranate fruits. © 2019 Society of Chemical Industry

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Section: Transcriptomic Changes Related To Acquisition Of Chilling Tomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Molecular mechanisms involved in postharvest chilling tolerance of pomegranate fruit

2019

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“…Recently, Wang et al (2019) over-expressed an ω-3 fatty acid desaturase from Glycine max ( GmFAD3A ) in rice, obtaining a significant improvement in cold tolerance and survival ratio. Also, rice mutants deficient in ω-3 fatty acid desaturase ( OsFAD8 ) fail to acclimate to low temperature stress (Tovuu et al 2016). It is well known that root hair growth requires extensive cell wall modification.…”

Section: Discussionmentioning

confidence: 99%

Cold tolerance in rice plants is partially controlled by root responses

Rativa

Araújo

Friedrich

et al. 2020

Preprint

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“…For example, OVP1 , a vacuolar H + ‐translocating inorganic pyrophosphatase gene ( V‐PPase ), confers rice chilling tolerance, through decreasing MDA content, accumulating proline, and concomitantly increasing cell membrane integrity (Zhang et al 2011). OsFAD8 , a ω‐3 fatty acid desaturase gene, is crucial for acclimation of rice to chilling stress, confirmed by reduction in unsaturated fatty acid (USFA) composition, fluidity of the thylakoid membrane in OsFAD8 knock‐out mutants (Tovuu et al 2016).…”

Section: Chilling Stress Signal Perception In Ricementioning

confidence: 99%

Coordination of light, circadian clock with temperature: The potential mechanisms regulating chilling tolerance in rice

Zhou

Fan

et al. 2019

JIPB

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Rice (Oryza sativa L.) is a major staple food crop for over half of the world's population. As a crop species originated from the subtropics, rice production is hampered by chilling stress. The genetic mechanisms of rice responses to chilling stress have attracted much attention, focusing on chilling-related gene mining and functional analyses. Plants have evolved sophisticated regulatory systems to respond to chilling stress in coordination with light signaling pathway and internal circadian clock. However, in rice, information about light-signaling pathways and circadian clock regulation and their roles in chilling tolerance remains elusive. Further investigation into the regulatory network of chilling tolerance in rice is needed, as knowledge of the interaction between temperature, light, and circadian clock dynamics is limited. Here, based on phenotypic analysis of transgenic and mutant rice lines, we delineate the relevant genes with important regulatory roles in chilling tolerance. In addition, we discuss the potential coordination mechanism among temperature, light, and circadian clock in regulating chilling response and tolerance of rice, and provide perspectives for the ongoing chilling signaling network research in rice.

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Rice mutants deficient in ω -3 fatty acid desaturase (FAD8) fail to acclimate to cold temperatures

Cited by 50 publications

References 38 publications

Molecular mechanisms involved in postharvest chilling tolerance of pomegranate fruit

Molecular mechanisms involved in postharvest chilling tolerance of pomegranate fruit

Cold tolerance in rice plants is partially controlled by root responses

Coordination of light, circadian clock with temperature: The potential mechanisms regulating chilling tolerance in rice

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