| کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
|---|---|---|---|---|
| 2825997 | 1162193 | 2014 | 8 صفحه PDF | دانلود رایگان |
تجهیز کامل مسیرها برای اکسین
مسیر IAOx
مسیر IAM
مسیر TAM
مسیر IPyA
کادر 1- بیوسنتز IAA وابسته به Trp
کادر 2- توتومری کتو- انول در IPyA
خانواده های
نکات پایانی
• We summarize the long and complex history of auxin biosynthesis in plants.
• At least five pathways have been proposed, including four from tryptophan.
• Tryptophan can be converted to auxin via a single intermediate, indole-3-pyruvic acid.
Auxins are an important group of hormones found in all land plants and several soil-dwelling microbes. Although auxin was the first phytohormone identified, its biosynthesis remained unclear until recently. In the past few years, our understanding of auxin biosynthesis has improved dramatically, to the stage where many believe there is a single predominant pathway in Arabidopsis (Arabidopsis thaliana L.). However, there is still uncertainty over the applicability of these findings to other plant species. Indeed, it appears that in certain organs of some species, other pathways can operate. Here we review the key advances that have led to our current understanding of auxin biosynthesis and its many proposed pathways.
Journal: - Volume 19, Issue 1, January 2014, Pages 44–51