Responses of PYR/PYL/RCAR ABA Receptors to Contrasting stresses, Heat and Cold in Arabidopsis

Zhang, Qian; Kong, Xiangge; Yu, Qin; Ding, Yongqiang; Li, Xiaohua; Yang, Yi

doi:10.1080/15592324.2019.1670596

Cited by 31 publications

(15 citation statements)

References 44 publications

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“…When cold acclimation ended, a large amount of ABA accumulated. ABA levels were increased in plants that were stressed, such as those under drought, cold, or high temperature stresses, and ABA played a crucial role in plant stress resistance [42][43][44]. During cold acclimation, ABA accumulation can induce the expression of some cold-resistant genes to improve freezing resistance [45].…”

Section: Responses Of the Plant Hormone Signaling Network To Cold Stressmentioning

confidence: 99%

Transcriptome profiling of Malus sieversii under freezing stress after being cold-acclimated

Zhou

Liu

et al. 2021

BMC Genomics

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Background Freezing temperatures are an abiotic stress that has a serious impact on plant growth and development in temperate regions and even threatens plant survival. The wild apple tree (Malus sieversii) needs to undergo a cold acclimation process to enhance its freezing tolerance in winter. Changes that occur at the molecular level in response to low temperatures are poorly understood in wild apple trees. Results Phytohormone and physiology profiles and transcriptome analysis were used to elaborate on the dynamic response mechanism. We determined that JA, IAA, and ABA accumulated in the cold acclimation stage and decreased during freezing stress in response to freezing stress. To elucidate the molecular mechanisms of freezing stress after cold acclimation, we employed single molecular real-time (SMRT) and RNA-seq technologies to study genome-wide expression profiles in wild apple. Using the PacBio and Illumina platform, we obtained 20.79G subreads. These reads were assembled into 61,908 transcripts, and 24,716 differentially expressed transcripts were obtained. Among them, 4410 transcripts were differentially expressed during the whole process of freezing stress, and these were examined for enrichment via GO and KEGG analyses. Pathway analysis indicated that “plant hormone signal transduction”, “starch and sucrose metabolism”, “peroxisome” and “photosynthesis” might play a vital role in wild apple responses to freezing stress. Furthermore, the transcription factors DREB1/CBF, MYC2, WRKY70, WRKY71, MYB4 and MYB88 were strongly induced during the whole stress period. Conclusions Our study presents a global survey of the transcriptome profiles of wild apple trees in dynamic response to freezing stress after two days cold acclimation and provides insights into the molecular mechanisms of freezing adaptation of wild apple plants for the first time. The study also provides valuable information for further research on the antifreezing reaction mechanism and genetic improvement of M. sieversii after cold acclimation.

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Section: Responses Of the Plant Hormone Signaling Network To Cold Stressmentioning

confidence: 99%

Transcriptome profiling of Malus sieversii under freezing stress after being cold-acclimated

Zhou

Liu

et al. 2021

BMC Genomics

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“…Moreover, expression of ABA1 , ABA4 and AAO3 increased remarkably compared with the controls. The PYL genes are core components of the ABA signalling pathway in Arabidopsis seedlings (Zhang et al 2019). In this study, expression of PYL2 , PYL3 and PYL9 was significantly upregulated under CAPPs.…”

Section: Discussionmentioning

confidence: 99%

Atmospheric pressure plasma treatment induces abscisic acid production, reduces stomatal aperture and improves seedling growth in Arabidopsis thaliana

et al. 2021

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Cold atmospheric pressure plasmas (CAPPs) have been widely used for pre‐sowing treatment in agriculture to accelerate seed germination; however, information on their application to pre‐transplant seedlings is scarce. The roles of the phytohormone abscisic acid (ABA) on guard cell aperture that control air exchange with the environment were investigated after CAPPs treatment. In this study, Arabidopsis thaliana seedling growth was evaluated under CAPPs treatment at different doses. Besides, the optimal growth stimulation dose was selected to further evaluate changes in ABA, ROS, Ca2+ and stomatal aperture during growth .The expression of most ABA signalling genes were aslo examined to investigate the mechanism. CAPPs treatment for 1 min significantly promoted Arabidopsis seedling growth; the ABA concentration in seedlings increased and peaked 48 h after treatment but was lower than in the control after 96 h. Transcript levels of most ABA signalling genes were markedly enhanced at 48 h, although their transcripts were significantly downregulated after 96 h. CAPPs treatment also reduced stomatal aperture after 24 h and accelerated ROS accumulation in guard cells. The Ca2+ concentration in the treatment group was markedly higher than in the control at 24 and 96 h. The results suggest that CAPPs treatment accelerates ABA accumulation in Arabidopsis at early growth stages and ABA regulates ROS and Ca2+ concentrations to affect stomatal aperture, and both ABA and stoma size are affected in CAPPs stimulation of Arabidopsis seedling growth.

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“…The OsPYL10 gene causes overexpression of the ABA receptor and has been identified as a potential source to enhance cold and drought tolerance in rice (Verma et al 2019). ABA receptors RCAR12 and RCAR13 can improve cold and heat tolerance (Zhang et al 2019). The ABA-dependent signaling cascade involving CsbZIP18 negatively regulates freezing tolerance (Yao et al 2020).…”

Section: Abiotic Stress Tolerancementioning

confidence: 99%

Insight into abscisic acid perception and signaling to increase plant tolerance to abiotic stress

Rehman

Azhar

Hinze

et al. 2021

Journal of Plant Interactions

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As changes occur in climate, abiotic stress to agricultural production is an inevitable threat to farmers' ability to meet an increasing demand to feed people. Plants have developed a stress tolerance mechanism to reduce the effects of such environmental conditions by engaging various stressresponsive genes. Accordingly, various signal transduction networks are used to fabricate stress tolerance. Engineering of the phytohormone abscisic acid (ABA) could be a choice method for scientists to mitigate abiotic stress because of its widespread role in response to salt, drought, heat, and cold stresses including triggering stomatal regulation and leaf senescence. In addition, it plays a crucial role in seed maturation, seed dormancy, stomatal opening/closure and increases resistance against pathogens through callose depositions and regulates physiological strategies in stress signaling pathways through synchronizing of hormonal crosstalk. The transcriptional regulation can be achieved through ABA-dependent and ABA-independent signaling cascades. ABAI5 and RD29A genes are regulated in ABA-dependent and independent manners to mitigate stress tolerance. ABA regulatory components (RCARs) including pyrabactin resistance PYR/PYL genes, SnRK2 type protein kinases, transcription factors (WRKY, NAC, AREB1, bZIP, RGL2, and ABRE), reactive oxygen species, jasmonic acid and cytokinin hormones regulate ABA gene action in response to abiotic stresses.

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Responses of PYR/PYL/RCAR ABA Receptors to Contrasting stresses, Heat and Cold in Arabidopsis

Cited by 31 publications

References 44 publications

Transcriptome profiling of Malus sieversii under freezing stress after being cold-acclimated

Transcriptome profiling of Malus sieversii under freezing stress after being cold-acclimated

Atmospheric pressure plasma treatment induces abscisic acid production, reduces stomatal aperture and improves seedling growth in Arabidopsis thaliana

Insight into abscisic acid perception and signaling to increase plant tolerance to abiotic stress

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