Academic Journal

Integrated omic analysis provides insights into the molecular regulation of stress tolerance by partial root-zone drying in rice

التفاصيل البيبلوغرافية
العنوان: Integrated omic analysis provides insights into the molecular regulation of stress tolerance by partial root-zone drying in rice
المؤلفون: Minhua Zhao, Canghao Du, Jian Zeng, Zhihong Gao, Yongyong Zhu, Jinfei Wang, Yupeng Zhang, Zetao Zhu, Yaqiong Wang, Mingjie Chen, Yuesheng Wang, Junli Chang, Guangxiao Yang, Guangyuan He, Yin Li, Xiaoyuan Chen
المصدر: Frontiers in Plant Science, Vol 14 (2023)
بيانات النشر: Frontiers Media S.A., 2023.
سنة النشر: 2023
المجموعة: LCC:Plant culture
مصطلحات موضوعية: RNA-Seq, metabolomics, omics analysis, rice, osmotic stress, regulation of gene expression, Plant culture, SB1-1110
الوصف: Partial root-zone drying (PRD) is an effective water-saving irrigation strategy that improves stress tolerance and facilitates efficient water use in several crops. It has long been considered that abscisic acid (ABA)-dependent drought resistance may be involved during partial root-zone drying. However, the molecular mechanisms underlying PRD-mediated stress tolerance remain unclear. It’s hypothesized that other mechanisms might contribute to PRD-mediated drought tolerance. Here, rice seedlings were used as a research model and the complex transcriptomic and metabolic reprogramming processes were revealed during PRD, with several key genes involved in osmotic stress tolerance identified by using a combination of physiological, transcriptome, and metabolome analyses. Our results demonstrated that PRD induces transcriptomic alteration mainly in the roots but not in the leaves and adjusts several amino-acid and phytohormone metabolic pathways to maintain the balance between growth and stress response compared to the polyethylene glycol (PEG)-treated roots. Integrated analysis of the transcriptome and metabolome associated the co-expression modules with PRD-induced metabolic reprogramming. Several genes encoding the key transcription factors (TFs) were identified in these co-expression modules, highlighting several key TFs, including TCP19, WRI1a, ABF1, ABF2, DERF1, and TZF7, involved in nitrogen metabolism, lipid metabolism, ABA signaling, ethylene signaling, and stress regulation. Thus, our work presents the first evidence that molecular mechanisms other than ABA-mediated drought resistance are involved in PRD-mediated stress tolerance. Overall, our results provide new insights into PRD-mediated osmotic stress tolerance, clarify the molecular regulation induced by PRD, and identify genes useful for further improving water-use efficiency and/or stress tolerance in rice.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1664-462X
Relation: https://www.frontiersin.org/articles/10.3389/fpls.2023.1156514/full; https://doaj.org/toc/1664-462X
DOI: 10.3389/fpls.2023.1156514
URL الوصول: https://doaj.org/article/dc5201b1b0a54a1ea3ce46ffb938aefe
رقم الانضمام: edsdoj.5201b1b0a54a1ea3ce46ffb938aefe
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:1664462X
DOI:10.3389/fpls.2023.1156514