دورية أكاديمية
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Anthocyanin Accumulation in Black Kernel Mutant Rice and its Contribution to ROS Detoxification in Response to High Temperature at the Filling Stage.

التفاصيل البيبلوغرافية
العنوان: Anthocyanin Accumulation in Black Kernel Mutant Rice and its Contribution to ROS Detoxification in Response to High Temperature at the Filling Stage.
المؤلفون: Zaidi SHR; Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China., Zakari SA; Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China., Zhao Q; Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China., Khan AR; Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China., Shah JM; College of Agriculture, Bahauddin Zakariya University Sub-Campus Bahadur, Layyah 31200, Pakistan., Cheng F; Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
المصدر: Antioxidants (Basel, Switzerland) [Antioxidants (Basel)] 2019 Oct 25; Vol. 8 (11). Date of Electronic Publication: 2019 Oct 25.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI AG Country of Publication: Switzerland NLM ID: 101668981 Publication Model: Electronic Cited Medium: Print ISSN: 2076-3921 (Print) Linking ISSN: 20763921 NLM ISO Abbreviation: Antioxidants (Basel) Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI AG, [2012]-
مستخلص: Effect of high temperature (HT) on anthocyanin (ANS) accumulation and its relationship with reactive oxygen species (ROS) generation in color rice kernel was investigated by using a black kernel mutant (9311 bk ) and its wildtype (WT). 9311 bk showed strikingly higher ANS content in the kernel than WT. Just like the starch accumulation in rice kernels, ANS accumulation in the 9311 bk kernel increased progressively along with kernel development, with the highest level of ANS at kernel maturity. HT exposure evidently decreased ANS accumulation in 9311 bk kernel, but it increased ROS and MDA concentrations. The extent of HT-induced decline in kernel starch accumulation was genotype-dependent, which was much larger for WT than 9311 bk . Under HT exposure, 9311 bk had a relatively lower increase in ROS and MDA contents than its WT. This occurrence was just opposite to the genotype-dependent alteration in the activities of antioxidant enzymes (SOD, CAT and APX) in response to HT exposure, suggesting more efficiently ROS detoxification and relatively stronger heat tolerance for 9311 bk than its WT. Hence, the extent of HT-induced declines in grain weight and kernel starch content was much smaller for 9311 bk relative to its WT. HT exposure suppressed the transcripts of OsCHS , OsF3'H , OsDFR and OsANS and impaired the ANS biosynthesis in rice kernel, which was strongly responsible for HT-induced decline in the accumulation of ANS, C3G, and P3G in 9311 bk kernels. These results could provide valuable information to cope with global warming and achieving high quality for color rice production.
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معلومات مُعتمدة: 31571602 National Natural Science Foundation of China; 2016YFD0300502 and SQ2017YFNC050023 National Key Research and Development Plan of China
فهرسة مساهمة: Keywords: Oryza sativa L.; anthocyanin biosynthesis; antioxidant metabolism; color rice; high temperature; pigment accumulation
تواريخ الأحداث: Date Created: 20191117 Latest Revision: 20200928
رمز التحديث: 20221213
مُعرف محوري في PubMed: PMC6912731
DOI: 10.3390/antiox8110510
PMID: 31731425
قاعدة البيانات: MEDLINE
الوصف
تدمد:2076-3921
DOI:10.3390/antiox8110510