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논문 기본 정보

자료유형
학술저널
저자정보
Haiyan Hu (Henan Institute of Science and Technology) Jie He (Henan Institute of Science and Technology) Junjie Zhao (Henan Institute of Science and Technology) Xingqi Ou (Collaborative Innovation Center of Modern Biological Breeding) Hongmin Li (Henan Engineering Research Center of Crop Genome Editing) Zhengang Ru (Collaborative Innovation Center of Modern Biological Breeding)
저널정보
한국유전학회 Genes & Genomics Genes & Genomics Vol.40 No.11
발행연도
2018.1
수록면
1,199 - 1,211 (13page)

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Soil acidification is one of major problems limiting crop growth and especially becoming increasingly serious in China owing to excessive use of nitrogen fertilizer. Only the STOP1 of Arabidopsis was identified clearly sensitive to proton rhizotoxicity and the molecular mechanism for proton toxicity tolerance of plants is still poorly understood. The main objective of this study was to investigate the transcriptomic change in plants under the low pH stress. The low pH as a single factor was employed to induce the response of the wheat seedling roots. Wheat cDNA microarray was used to identify differentially expressed genes (DEGs). A total of 1057 DEGs were identified, of which 761 genes were up-regulated and 296 were downregulated. The greater percentage of up-regulated genes involved in developmental processes, immune system processes, multi-organism processes, positive regulation of biological processes and metabolic processes of the biological processes. The more proportion of down-regulation genes belong to the molecular function category including transporter activity, antioxidant activity and molecular transducer activity and to the extracellular region of the cellular components category. Moreover, most genes among 41 genes involved in ion binding, 17 WAKY transcription factor genes and 17 genes related to transport activity were up-regulated. KEGG analysis showed that the jasmonate signal transduction and flavonoid biosynthesis might play important roles in response to the low pH stress in wheat seedling roots. Based on the data, it is can be deduced that WRKY transcription factors might play a critical role in the transcriptional regulation, and the alkalifying of the rhizosphere might be the earliest response process to low pH stress in wheat seedling roots. These results provide a basis to reveal the molecular mechanism of proton toxicity tolerance in plants.

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참고문헌 (63)

참고문헌 신청
Bewley JD / 2013 / Seeds: physiology of development, germination and dormancy / Springer google schola Bibikova TN / 1998 / Localized changes in apoplastic and cytoplasmic pH are associated with root hair development in Arabidopsis thaliana / Development 125:2925~2934 google schola Bose J / 2010 / Aluminum-dependent dynamics of ion transport in Arabidopsis : specificity of low pH and aluminium responses / Physiol Plant 139:401~412 google schola Bouche N / 2004 / GABA in plants : just a metabolite? / Trends Plant Sci 9:110~115 google schola Buer CS / 2006 / Ethylene modulates flavonoid accumulation and gravitropic responses in roots of Arabidopsis / Plant Physiol 140:1384~1396 google schola

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