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Gibberellin Inhibits Floral Initiation in the Perennial Woody Plant Jatropha curcas
Li, Jialong; Pan, Bang-Zhen; Niu, Longjian; Chen, Mao-Sheng; Tang, Mingyong; Xu, Zeng-Fu; Xu, ZF (reprint author), Chinese Acad Sci, Key Lab Trop Plant Resources & Sustainable Use, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China.
2018
Source PublicationJOURNAL OF PLANT GROWTH REGULATION
ISSN0721-7595
Volume37Issue:3Pages:999-1006
AbstractGibberellin (GA) is an important phytohormone and has been reported to promote flowering in annual and biennial plants, but may play an opposite role in woody perennial plants. In this study, the promoting or inhibiting effect of GA on floral initiation was investigated in Jatropha curcas L., a perennial woody plant, which has great potential as renewable energy plant due to the high oil content in the seed. We found that exogenous application of gibberellic acid (GA(3)) inhibited flowering, whereas GA biosynthesis inhibitors promoted flowering. The promotive effect of the GA biosynthesis inhibitor paclobutrazol on floral initiation could be diminished by GA(3) treatment. The expression levels of GA biosynthesis genes Jatropha GA 3-oxidase 3 (JcGA3ox3) and the GA receptor genes, Jatropha GA-INSENSITIVE DWARF 1C (JcGID1C) were decreased, whereas a GA catabolism gene, Jatropha GA 2-oxidase 8 (JcGA2ox8), was elevated during floral transition. These results suggest that GA inhibits floral initiation in J. curcas.
Department其他
KeywordGibberellin Gibberellin Biosynthesis Inhibitor Paclobutrazol Floral Transition Flowering Biofuel Physic Nut
Subject AreaPlant Sciences
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10988
Collection能源植物分子育种研究组
Corresponding AuthorXu, ZF (reprint author), Chinese Acad Sci, Key Lab Trop Plant Resources & Sustainable Use, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China.
Recommended Citation
GB/T 7714
Li, Jialong,Pan, Bang-Zhen,Niu, Longjian,et al. Gibberellin Inhibits Floral Initiation in the Perennial Woody Plant Jatropha curcas[J]. JOURNAL OF PLANT GROWTH REGULATION,2018,37(3):999-1006.
APA Li, Jialong.,Pan, Bang-Zhen.,Niu, Longjian.,Chen, Mao-Sheng.,Tang, Mingyong.,...&Xu, ZF .(2018).Gibberellin Inhibits Floral Initiation in the Perennial Woody Plant Jatropha curcas.JOURNAL OF PLANT GROWTH REGULATION,37(3),999-1006.
MLA Li, Jialong,et al."Gibberellin Inhibits Floral Initiation in the Perennial Woody Plant Jatropha curcas".JOURNAL OF PLANT GROWTH REGULATION 37.3(2018):999-1006.
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