Please wait a minute...
J Integr Plant Biol, 2006, 48 (12): 1478-1485, Research Article
Tomato Fruit Development and Ripening Are Altered by the Silencing of LeEIN2 Gene
Hong-Liang Zhu, Ben-Zhong Zhu, Yi Shao, Xiao-Guang Wang, Xi-Jin Lin, Yuan-Hong Xie, Ying-Cong Li, Hong-Yan Gao and Yun-Bo Luo
doi: 10.1111/j.1744-7909.2006.00366.x
Abstract
Loss-of-function ethylene insensitive 2 (EIN2) mutations showed ethylene insensitivity in Arabidopsis, which indicated an essential role of EIN2 in ethylene signaling. However, the function of EIN2 in fruit ripening has not been investigated. To gain a better understanding of EIN2, the temporal regulation of LeEIN2 expression during tomato fruit development was analyzed. The expression of LeEIN2 was constant at different stages of fruit development, and was not regulated by ethylene. Moreover, LeEIN2-silenced tomato fruits were developed using a virus-induced gene silencing fruit system to study the role of LeEIN2 in tomato fruit ripening. Silenced fruits had a delay in fruit development and ripening, related to greatly descended expression of ethylene-related and ripening-related genes in comparison with those of control fruits. These results suggested LeEIN2 positively mediated ethylene signals during tomato development. In addition, there were fewer seeds and locules in the silenced fruit than those in the control fruit, like the phenotype of parthenocarpic tomato fruit. The content of auxin and the expression of auxin-regulated gene were declined in silenced fruit, which indicated that EIN2 might be important for crosstalk between ethylene and auxin hormones. (Author for correspondence. Tel (Fax): +86 (10) 6273 6479; E-mail: lyb@cau.edu.cn)
--------------------------------------------------------------------------------------------------------------------
   Online on:
This Article
   Full Text  
   Full Text (PDF) 
   Supporting information
Services
   E-mail Link to this Article
   Export Citation for this Article
Citing Articles
   Cited By
Google Scholar
   Articles by Hong-Liang Zhu
   Articles by Ben-Zhong Zhu
   Articles by Yi Shao
   Articles by Xiao-Guang Wang
   Articles by Xi-Jin Lin
   Articles by Yuan-Hong Xie
   Articles by Ying-Cong Li
   Articles by Hong-Yan Gao
   Articles by Yun-Bo Luo
PubMed
   Articles by Hong-Liang Zhu
   Articles by Ben-Zhong Zhu
   Articles by Yi Shao
   Articles by Xiao-Guang Wang
   Articles by Xi-Jin Lin
   Articles by Yuan-Hong Xie
   Articles by Ying-Cong Li
   Articles by Hong-Yan Gao
   Articles by Yun-Bo Luo
Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2020 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q
网站备案号:京ICP备16067583号-22