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Fungal Biol

Title:		Temporal changes in fungal communities from buckwheat seeds and their effects on seed germination and seedling secondary metabolism
Author(s):		Kovacec E; Likar M; Regvar M;
Address:		"Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana 1000, Slovenia. Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana 1000, Slovenia. Electronic address: marjana.regvar@bf.uni-lj.si"
Journal Title:		Fungal Biol
Year:		2016
Volume:		20160316
Issue:		5
Page Number:		666 - 678
DOI:		10.1016/j.funbio.2016.03.003
ISSN/ISBN:		1878-6146 (Print)
Abstract:		"Seed-associated fungal communities affect multiple parameters of seed quality at all stages of production, from seed development to post-harvest storage and germination. We therefore investigated the diversity and dynamics of fungal communities in the seeds of common buckwheat (Fagopyrum esculentum) and Tartary buckwheat (F. tataricum) from harvest to 1 y of storage. Fungal populations in seeds were relatively stable, comprised mainly of field fungi. Incidence of fungi was most likely determined by fungal interspecies direct interactions, as well as by their synthesis of volatile organic compounds. Most prominent antagonistic interactions were seen for two plant pathogens, Alternaria alternata on Botrytis cinerea. Detrimental effects of the fungi on seed germination and seedling development were related to fungal extracellular enzyme activity, and in particular to amylase, cellulase and, polyphenol oxidase. Polyphenol and tannin concentrations in buckwheat seedlings were related to fungal growth rate and intensity of fungal cellulase activity, respectively, which suggests that physical penetration of the fungi through the host tissues is probably the stimulus for the activation of plant defence reactions in these seedlings"
Keywords:		"*Biota DNA, Fungal/chemistry/genetics DNA, Ribosomal Spacer/chemistry/genetics Fagopyrum/*microbiology Fungi/classification/*isolation & purification *Germination *Secondary Metabolism Seedlings/*growth & development/metabolism Seeds/*microbiology Sequenc;"
Notes:		"MedlineKovacec, Eva Likar, Matevz Regvar, Marjana eng Research Support, Non-U.S. Gov't Netherlands 2016/04/26 Fungal Biol. 2016 May; 120(5):666-78. doi: 10.1016/j.funbio.2016.03.003. Epub 2016 Mar 16"