干旱区生态环境知识资源中心(Arid): Screening for native Trichoderma strains as potential biocontrollers of the olive pathogen Verticillium dahliae

Arid

DOI	10.1080/15324982.2023.2233933
	Screening for native Trichoderma strains as potential biocontrollers of the olive pathogen Verticillium dahliae
	Carrasco, Franca; Miranda, Victoria; Sede, Silvana M.; Bustos, Sebastian; Gonzalez, Valeria; Otero, Laura; Fracchia, Sebastian
通讯作者	Carrasco, F
来源期刊	ARID LAND RESEARCH AND MANAGEMENT
ISSN	1532-4982
EISSN	1532-4990
出版年	2024
卷号	38 期号:1 页码:122-143
英文摘要	Verticillium dahliae is a soilborne pathogen that causes significant losses in olive crops in northwestern Argentina. Biological control through antagonistic microorganisms such as Trichoderma has great potential in the management of Verticillium wilt of olive. This investigation aims to isolate, identify and characterize native Trichoderma strains for biocontrol of V. dahliae. Thirty-nine Trichoderma strains were isolated from soils of olive orchards and natural areas and they were morphologically and molecularly characterized. Desired attributes for plant growth and bioprotection, such as indole acetic acid (IAA) production, endophytism and antagonistic potential against the pathogen were evaluated. Thirteen Trichoderma species were identified, belonging to the Trichoderma, Longibrachiatum, Virens, and Harzianum clades. Physiological characterization revealed that fourteen strains produced IAA while ten showed endophytic capacity. The antagonistic parameters quantified were very variable: eight strains showed high growth inhibition values (PI > 65%), while six strains reached mycoparasitism (PM) values higher than 90% for both pathogens. Three endophytic strains exhibited IAA production and antagonistic activity against V. dahliae, becoming potential candidates for bioprotection of olive orchards. Olive cultivation in the arid regions of northwestern Argentina is subjected to strong stress conditions mainly due to the type of soils with low organic matter content and water retention. Thus, selected Trichoderma strains with more than one beneficial attribute are a fundamental tool for sustainable olive cultivation, not only as antagonists of emerging pathogens but also as mitigators of abiotic stress conditions that prevail in these environments.
英文关键词	Biocontrol olive disease root endophyte semiarid arid soils >
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001026732700001
WOS关键词	GENE-EXPRESSION ; WILT ; LONGIBRACHIATUM ; IDENTIFICATION ; COLONIZATION ; ATROVIRIDE ; SEEDLINGS ; DISEASE ; GROWTH ; BANANA
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402941
推荐引用方式 GB/T 7714	Carrasco, Franca,Miranda, Victoria,Sede, Silvana M.,et al. Screening for native Trichoderma strains as potential biocontrollers of the olive pathogen Verticillium dahliae[J],2024,38(1):122-143.
APA	Carrasco, Franca.,Miranda, Victoria.,Sede, Silvana M..,Bustos, Sebastian.,Gonzalez, Valeria.,...&Fracchia, Sebastian.(2024).Screening for native Trichoderma strains as potential biocontrollers of the olive pathogen Verticillium dahliae.ARID LAND RESEARCH AND MANAGEMENT,38(1),122-143.
MLA	Carrasco, Franca,et al."Screening for native Trichoderma strains as potential biocontrollers of the olive pathogen Verticillium dahliae".ARID LAND RESEARCH AND MANAGEMENT 38.1(2024):122-143.