Identification and functional analysis of cassava DELLA proteins in plant disease resistance against cassava bacterial blight
Copyright © 2017 Elsevier Masson SAS. All rights reserved.
| Publié dans: | Plant physiology and biochemistry : PPB. - 1991. - 124(2018) vom: 20. März, Seite 70-76 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2018
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| Accès à la collection: | Plant physiology and biochemistry : PPB |
| Sujets: | Journal Article Cassava (Manihot esculenta) Cassava bacterial blight DELLA Disease resistance VIGS Plant Proteins |
| Résumé: | Copyright © 2017 Elsevier Masson SAS. All rights reserved. Gibberellin (GA) is an essential plant hormone in plant growth and development as well as various stress responses. DELLA proteins are important repressors of GA signal pathway. GA and DELLA have been extensively investigated in several model plants. However, the in vivo roles of GA and DELLA in cassava, one of the most important crops and energy crops in the tropical area, are unknown. In this study, systematic genome-wide analysis identified 4 MeDELLAs in cassava, as evidenced by the evolutionary tree, gene structures and motifs analyses. Gene expression analysis found that 4 MeDELLAs were commonly regulated by flg22 and Xanthomonas axonopodis pv manihotis (Xam). Through overexpression in Nicotiana benthamiana, we found that 4 MeDELLAs conferred improved disease resistance against cassava bacterial blight. Through virus-induced gene silencing (VIGS) in cassava, we found that MeDELLA-silenced plants exhibited decreased disease resistance, with less callose deposition and lower transcript levels of defense-related genes. This is the first study identifying MeDELLAs as positive regulators of disease resistance against cassava bacterial blight |
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| Description: | Date Completed 12.07.2018 Date Revised 06.07.2024 published: Print-Electronic ErratumIn: Plant Physiol Biochem. 2024 Sep;214:108910. doi: 10.1016/j.plaphy.2024.108910. - PMID 38971650 Citation Status MEDLINE |
| ISSN: | 1873-2690 |
| DOI: | 10.1016/j.plaphy.2017.12.022 |