Ph.D. Program in Plant Molecular Biology

Friday Seminar by Dr. Naini Burman

JPK Lab/ Friday / September1, 2017/ 3.30pm / Effect of OsKO2 regulation on plant height
Category: Research
Posted by: bedineel

Effect of OsKO2 regulation on plant height

Plant architecture is of major agronomic importance as it determines the adaptability of plant to cultivation, its harvest index and potential grain yield. Rice plant architecture is mainly determined by tiller pattern, plant height, leaf shape and arrangement, and panicle architecture. Plant height is an important agronomic trait which directly influences harvest index and yield potential. A number of genes have been identified which affect the plant height. Most of these genes encode for gibberellic acid (GA) and brassinosteroid biosynthetic or signalling pathway components. OsKO2 is one of the GA biosynthetic gene in rice, which encodes for ent-kaurene oxidase. This gene is a target of many transcription factors which are involved in controlling plant height.


Chen X, Lu S, Wang Y, Zhang X, Lv B, Luo L, Xi D, Shen J, Ma H, Ming F (2015) OsNAC2 encoding a NAC transcription factor that affects plant height through mediating the gibberellic acid pathway in rice. Plant J 82: 302-314


Li J, Jiang J, Qian Q, Xu Y, Zhang C, Xiao J, Du C, Luo W, Zou G, Chen M, Huang Y, Feng Y, Cheng Z, Yuan M, Chong K (2011) Mutation of rice BC12/GDD1, which encodes a kinesin-like protein that binds to a GA biosynthesis gene promoter, leads to dwarfism with impaired cell elongation. Plant Cell 23: 628-640


Qi W, Sun F, Wang Q, Chen M, Huang Y, Feng YQ, Luo X, Yang J (2011) Rice ethylene

response AP2/ERF factor OsEATB restricts internode elongation by down-regulating a

gibberellin biosynthetic gene. Plant Physiol 157: 216-228