Universität zu Köln

Bahramisharif, Amirhossein ORCID: 0000-0001-6851-9130 and Rose, Laura E. (2019). Efficacy of biological agents and compost on growth and resistance of tomatoes to late blight. Planta, 249 (3). S. 799 - 814. NEW YORK: SPRINGER. ISSN 1432-2048

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Abstract

Main conclusionThis study identified biocontrol measures for improving plant quality and resistance under biotic stress caused by the most devastating pathogen in tomato production.The management of plant diseases are dependent on a variety of factors. Two important variables are the soil quality and its bacterial/fungal community. However, the interaction of these factors is not well understood and remains problematic in producing healthy crops. Here, the effect of oak-bark compost, Bacillus subtilis subsp. subtilis, Trichoderma harzianum and two commercial products (FZB24 and FZB42) were investigated on tomato growth, production of metabolites and resistance under biotic stress condition (infection with Phytophthora infestans). Oak-bark compost, B. subtilis subsp. subtilis, and T. harzianum significantly enhanced plant growth and immunity when exposed to P. infestans. However, the commercial products were not as effective in promoting growth, with FZB42 having the weakest protection. Furthermore, elevated levels of anthocyanins did not correlate with enhanced plant resistance. Overall, the most effective and consistent plant protection was obtained when B. subtilis subsp. subtilis was combined with oak-bark compost. In contrast, the combination of T. harzianum and oak-bark compost resulted in increased disease severity. The use of compost in combination with bio-agents should, therefore, be evaluated carefully for a reliable and consistent tomato protection.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Bahramisharif, Amirhossein UNSPECIFIED orcid.org/0000-0001-6851-9130 UNSPECIFIED Rose, Laura E. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-155908
DOI:	10.1007/s00425-018-3035-2
Journal or Publication Title:	Planta
Volume:	249
Number:	3
Page Range:	S. 799 - 814
Date:	2019
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1432-2048
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language INDUCED SYSTEMIC RESISTANCE; BACILLUS-SUBTILIS; PLANT-GROWTH; PHYTOPHTHORA-INFESTANS; DAMPING-OFF; PROMOTING RHIZOBACTERIA; TRICHODERMA-HARZIANUM; MOLECULAR PHYLOGENY; PYTHIUM-OLIGANDRUM; FUNGAL ENDOPHYTES Multiple languages Plant Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15590