Functional Characterization of 9-13-LOXs in Rice and Silencing Their Expressions to Improve Grain Qualities
المؤلفون المشاركون
RoyChowdhury, Moytri
Li, Xiaobai
Qi, Hangying
Li, Wenxu
Sun, Jian
Huang, Cheng
Wu, Dianxing
المصدر
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-06-15
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
Lipoxygenases (LOXs) are involved in oxidative rancidity and render rice unsuitable for human consumption.
Here, RNA interference- (RNAi-) induced gene expression inhibition was used to analyze the functions of the bran/seed-specific LOXs in rice.
r9-LOX1 and L-2 (9-LOX category) were the candidate genes expressing a bran/seed-specific LOX, while RCI-1 was (13-LOX category) a plastid-specific LOX.
Real-time PCR showed that three LOXs were cultivar/tissue specific expression on a certain level.
r9-LOX1 and L-2 were generally much higher in active bran/seed than in stabilized bran, mature seed, and regenerated plant.
RCI-1 was barely expressed in seed.
In transgenic lines, r9-LOX1, as well as L-2, expression was dramatically downregulated, compared to the nontransgenic controls.
SPME/GC-MS analysis of r9-LOX1 RNAi transgenic lines showed 74.33% decrease in nonanal content (formed during oxidation of linoleic acid by lipoxygenase), but 388.24% increase in acetic acid and 184.84% hexanal (direct products of 13-LOX).
These results indicate that r9-LOX1 positively regulates the amount of nonanal but negatively regulates acetic acid and hexanal.
The negative regulation may be due to a mechanism of negative feedback between LOX family members.
The information will help comprehensively understand the function of the bran/seed-specific LOXs, r9-LOX1, and improve the storage quality in the future.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
RoyChowdhury, Moytri& Li, Xiaobai& Qi, Hangying& Li, Wenxu& Sun, Jian& Huang, Cheng…[et al.]. 2016. Functional Characterization of 9-13-LOXs in Rice and Silencing Their Expressions to Improve Grain Qualities. BioMed Research International،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1097718
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
RoyChowdhury, Moytri…[et al.]. Functional Characterization of 9-13-LOXs in Rice and Silencing Their Expressions to Improve Grain Qualities. BioMed Research International No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1097718
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
RoyChowdhury, Moytri& Li, Xiaobai& Qi, Hangying& Li, Wenxu& Sun, Jian& Huang, Cheng…[et al.]. Functional Characterization of 9-13-LOXs in Rice and Silencing Their Expressions to Improve Grain Qualities. BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1097718
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1097718
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر