Transcriptional regulatory network triggered by oxidative signals configures the early response mechanisms of japonica rice to chilling stress

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dc.creatorYun, Kil-Young
dc.creatorPark, Myoung Ryoul
dc.creatorMohanty, Bijayalaxmi
dc.creatorHerath, Venura
dc.creatorXu, Fuyu
dc.creatorMauleon, Ramil
dc.creatorWijaya, Edward
dc.creatorBajic, Vladimir B.
dc.creatorBruskiewich, Richard
dc.creatorde los Reyes, Benildo G.
dc.date2010-12
dc.date2024-12-19T12:55:51Z
dc.date2024-12-19T12:55:51Z
dc.date.accessioned2026-06-27T04:12:40Z
dc.descriptionThe transcriptional regulatory network involved in low temperature response leading to acclimation has been established inArabidopsis. In japonica rice, which can only withstand transient exposure to milder cold stress (10°C), an oxidative-mediated network has been proposed to play a key role in configuring early responses and short-term defenses. The components, hierarchical organization and physiological consequences of this network were further dissected by a systems-level approach.ResultsRegulatory clusters responding directly to oxidative signals were prominent during the initial 6 to 12 hours at 10°C. Early events mirrored a typical oxidative response based on striking similarities of the transcriptome to disease, elicitor and wounding induced processes. Targets of oxidative-mediated mechanisms are likely regulated by several classes of bZIP factors acting on as1/ocs/TGA-like element enriched clusters, ERF factors acting on GCC-box/JAre-like element enriched clusters and R2R3-MYB factors acting on MYB2-like element enriched clusters.Temporal induction of several H2O2-induced bZIP, ERF and MYB genes coincided with the transient H2O2spikes within the initial 6 to 12 hours. Oxidative-independent responses involveDREB/CBF,RAP2andRAV1factors acting on DRE/CRT/rav1-like enriched clusters and bZIP factors acting on ABRE-like enriched clusters. Oxidative-mediated clusters were activated earlier than ABA-mediated clusters.ConclusionGenome-wide, physiological and whole-plant level analyses established a holistic view of chilling stress response mechanism of japonica rice. Early response regulatory network triggered by oxidative signals is critical for prolonged survival under sub-optimal temperature. Integration of stress and developmental responses leads to modulated growth and vigor maintenance contributing to a delay of plastic injuries.
dc.identifierhttps://hdl.handle.net/10568/166079
dc.identifier.urihttp://hdl.handle.net/123456789/25220
dc.languageen
dc.publisherSpringer
dc.sourceYun, Kil-Young; Park, Myoung Ryoul; Mohanty, Bijayalaxmi; Herath, Venura; Xu, Fuyu; Mauleon, Ramil; Wijaya, Edward; Bajic, Vladimir B; Bruskiewich, Richard and de los Reyes, Benildo G. 2010. Transcriptional regulatory network triggered by oxidative signals configures the early response mechanisms of japonica rice to chilling stress. BMC Plant Biol, Volume 10, no. 1
dc.subjectcold stress
dc.subjectcold tolerance
dc.subjectgenes
dc.subjectgene expression
dc.subjectgenetic regulation
dc.subjectsignal transduction
dc.subjectstress
dc.subjectstress response
dc.subjecttranscription
dc.titleTranscriptional regulatory network triggered by oxidative signals configures the early response mechanisms of japonica rice to chilling stress
dc.typeJournal Article

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Instituto Internacional de Investigación del Arroz (IRRI)