干旱区生态环境知识资源中心(Arid): The 1-aminocyclopropane-1-carboxylic acid deaminase-producing Streptomyces violaceoruber UAE1 can provide protection from sudden decline syndrome on date palm

Arid

DOI	10.3389/fpls.2022.904166
	The 1-aminocyclopropane-1-carboxylic acid deaminase-producing Streptomyces violaceoruber UAE1 can provide protection from sudden decline syndrome on date palm
	Alwahshi, Khawla J.; Purayil, Gouthaman P.; Saeed, Esam Eldin; Abufarajallah, Haneen A.; Aldhaheri, Shama J.; AbuQamar, Synan F.; El-Tarabily, Khaled A.
通讯作者	AbuQamar, SF ; El-Tarabily, KA
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2022
卷号	13
英文摘要	In the United Arab Emirates (UAE), sudden decline syndrome (SDS) is one of the major fungal diseases caused by Fusarium solani affecting date palm plantations. To minimize the impact of the causal agent of SDS on date palm, native actinobacterial strains isolated from rhizosphere soils of healthy date palm plants were characterized according to their antifungal activities against F. solani DSM 106836 (Fs). Based on their in vitro abilities, two promising biocontrol agents (BCAs), namely Streptomyces tendae UAE1 (St) andStreptomyces violaceoruber UAE1 (Sv), were selected for the production of antifungal compounds and cell wall degrading enzymes (CWDEs), albeit their variations in synthesizing 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase (ACCD). Although both isolates showed antagonism when applied 7 days before the pathogen in the greenhouse experiments, the ACCD-producing Sv was relatively superior in its efficacy against SDS over the non-ACCD-producing St. This was evident from the symptoms of SDS in diseased date palm seedlings which were greatly reduced by Sv compared to St. On a scale of 5.0, the estimated disease severity indices in Fs-diseased seedlings were significantly (P < 0.05) reduced from 4.8 to 1.5 and 0.5 by St and Sv, respectively. Thus, the number of conidia of Fs recovered from plants pre-treated with both BCAs was comparable, but significantly (P < 0.05) reduced compared to plants without any BCA treatment. In addition, a significant (P < 0.05) decrease in ACC levels of both the root and shoot tissues was detected inSv + Fs seedlings to almost similar levels of healthy seedlings. However, in planta ACC levels highly increased in seedlings grown in soils infested with the pathogen alone or amended with St prior to F. solani infestation (St + Fs). This suggests a major role of ACCD production in relieving the stress of date palm seedlings infected with F. solani, thus supporting the integrated preventive disease management programs against this pathogen. This is the first report of effective rhizosphere actinobacterial BCAs to provide protection against SDS on date palm, and to help increase agricultural productivity in a more sustainable manner in the UAE and the other arid regions.
英文关键词	actinobacteria biocontrol date palm Fusarium solani rhizosphere plant-microbe interaction sudden decline syndrome
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000840651900001
WOS关键词	FUSARIUM-WILT DISEASE ; BIOLOGICAL-CONTROL ; ACC DEAMINASE ; PLANT-GROWTH ; SELECTIVE ISOLATION ; BACTERIA ; SOIL ; IDENTIFICATION ; RHIZOSPHERE ; ANTIFUNGAL
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392838
推荐引用方式 GB/T 7714	Alwahshi, Khawla J.,Purayil, Gouthaman P.,Saeed, Esam Eldin,et al. The 1-aminocyclopropane-1-carboxylic acid deaminase-producing Streptomyces violaceoruber UAE1 can provide protection from sudden decline syndrome on date palm[J],2022,13.
APA	Alwahshi, Khawla J..,Purayil, Gouthaman P..,Saeed, Esam Eldin.,Abufarajallah, Haneen A..,Aldhaheri, Shama J..,...&El-Tarabily, Khaled A..(2022).The 1-aminocyclopropane-1-carboxylic acid deaminase-producing Streptomyces violaceoruber UAE1 can provide protection from sudden decline syndrome on date palm.FRONTIERS IN PLANT SCIENCE,13.
MLA	Alwahshi, Khawla J.,et al."The 1-aminocyclopropane-1-carboxylic acid deaminase-producing Streptomyces violaceoruber UAE1 can provide protection from sudden decline syndrome on date palm".FRONTIERS IN PLANT SCIENCE 13(2022).