Authors:
S. Tang Nanjing Agricultural University, Nanjing 210095, PR China
Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing 210095, PR China

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L. Li Nanjing Agricultural University, Nanjing 210095, PR China

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Q.Y. Zhou Nanjing Agricultural University, Nanjing 210095, PR China

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W.Z. Liu Nanjing Agricultural University, Nanjing 210095, PR China

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H.X. Zhang Nanjing Agricultural University, Nanjing 210095, PR China

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W. Z. Chen Nanjing Agricultural University, Nanjing 210095, PR China

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Y.F. Ding Nanjing Agricultural University, Nanjing 210095, PR China
Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing 210095, PR China

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Gibberellins (GAs) are a class of plant hormones that play important roles in diverse aspects during plant growth and development. A series of GA synthesis and metabolism genes have been reported or proved to have essential functions in different plant species, while a small number of GA 2-oxidase genes have been cloned or reported in wheat. Previous studies have provided some important findings on the process of GA biosynthesis and the enzymes involved in its related pathways. These may facilitate understanding of the complicated process underlying GA synthesis and metabolism in wheat. In this study, GA 2-oxidase genes TaGA2ox1-1, TaGA2ox1-2, TaGA2ox1-3, TaGA2ox1-4, TaGA2ox1-5, and TaGA2ox1-6 were identified and further overexpressed in rice plants to investigate their functions in GA biosynthesis and signaling pathway. Results showed overexpression of GA 2-oxidase genes in rice disrupted the GA metabolic pathways and induced catalytic responses and regulated other GA biosynthesis and signaling pathway genes, which further leading to GA signaling disorders and diversity in phenotypic changes in rice plants.

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Cereal Research Communications
Language English
Size A4
Year of
Foundation
1973
Volumes
per Year
1
Issues
per Year
4
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)