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Transcriptome profiling and physiological studies reveal a major role for aromatic amino acids in mercury stress tolerance in rice seedlings.

التفاصيل البيبلوغرافية
العنوان: Transcriptome profiling and physiological studies reveal a major role for aromatic amino acids in mercury stress tolerance in rice seedlings.
المؤلفون: Yun-An Chen, Wen-Chang Chi, Ngoc Nam Trinh, Li-Yao Huang, Ying-Chih Chen, Kai-Teng Cheng, Tsai-Lien Huang, Chung-Yi Lin, Hao-Jen Huang
المصدر: PLoS ONE, Vol 9, Iss 5, p e95163 (2014)
بيانات النشر: Public Library of Science (PLoS), 2014.
سنة النشر: 2014
المجموعة: LCC:Medicine
LCC:Science
مصطلحات موضوعية: Medicine, Science
الوصف: Mercury (Hg) is a serious environmental pollution threat to the planet. The accumulation of Hg in plants disrupts many cellular-level functions and inhibits growth and development, but the mechanism is not fully understood. To gain more insight into the cellular response to Hg, we performed a large-scale analysis of the rice transcriptome during Hg stress. Genes induced with short-term exposure represented functional categories of cell-wall formation, chemical detoxification, secondary metabolism, signal transduction and abiotic stress response. Moreover, Hg stress upregulated several genes involved in aromatic amino acids (Phe and Trp) and increased the level of free Phe and Trp content. Exogenous application of Phe and Trp to rice roots enhanced tolerance to Hg and effectively reduced Hg-induced production of reactive oxygen species. Hg induced calcium accumulation and activated mitogen-activated protein kinase. Further characterization of the Hg-responsive genes we identified may be helpful for better understanding the mechanisms of Hg in plants.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1932-6203
Relation: http://europepmc.org/articles/PMC4026224?pdf=render; https://doaj.org/toc/1932-6203
DOI: 10.1371/journal.pone.0095163
URL الوصول: https://doaj.org/article/d0f5d4d394eb4e8699a0674ebd48fcf1
رقم الأكسشن: edsdoj.0f5d4d394eb4e8699a0674ebd48fcf1
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19326203
DOI:10.1371/journal.pone.0095163