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title: beta-Ketoacyl-acyl Carrier Protein Synthase I (KASI) Plays Crucial Roles in the Plant Growth and Fatty Acids Synthesis in Tobacco
author: Yang, Tianquan;  Xu, Ronghua;  Chen, Jianghua;  Liu, Aizhong
Issued Date: 2016
Abstract: Fatty acids serve many functions in plants, but the effects of some key genes involved in fatty acids biosynthesis on plants growth and development are not well understood yet. To understand the functions of 3-ketoacyl-acyl-carrier protein synthase I (KASI) in tobacco, we isolated two KASI homologs, which we have designated NtKASI-1 and NtKASI-2. Expression analysis showed that these two KASI genes were transcribed constitutively in all tissues examined. Over-expression of NtKASI-1 in tobacco changed the fatty acid content in leaves, whereas over-expressed lines of NtKASI-2 exhibited distinct phenotypic features such as slightly variegated leaves and reduction of the fatty acid content in leaves, similar to the silencing plants of NtKASI-1 gene. Interestingly, the silencing of NtKASI-2 gene had no discernibly altered phenotypes compared to wild type. The double silencing plants of these two genes enhanced the phenotypic changes during vegetative and reproductive growth compared to wild type. These results uncovered that these two KASI genes had the partially functional redundancy, and that the KASI genes played a key role in regulating fatty acids synthesis and in mediating plant growth and development in tobacco.
Related URLs: 10.3390/ijms17081287
Appears in Collections:2012年后新成立研究组_期刊论文

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Recommended Citation:
Yang, Tianquan,Xu, Ronghua,Chen, Jianghua,et al. Beta-ketoacyl-acyl Carrier Protein Synthase I (kasi) Plays Crucial Roles In The Plant Growth And Fatty Acids Synthesis In Tobacco[J]. International Journal Of Molecular Sciences,2016,17(8):-.

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