Interactions between three alfalfa nodulation genotypes and two Glomus species

Autor:	R. L. Peterson, S. R. Bowley, S. M. Bradbury
Rok vydání:	1991
Předmět:	Medicago biology Physiology Inoculation fungi food and beverages Plant Science biology.organism_classification Symbiosis Botany Colonization Mycorrhiza Medicago sativa Phycomycetes Glomus
Zdroj:	New Phytologist. 119:115-120
ISSN:	1469-8137 0028-646X
DOI:	10.1111/j.1469-8137.1991.tb01014.x
Popis:	summary Seedlings of a non-nodulating alfalfa (Medicago sativa L.) genotype (nod−fix−) and an ineffectively nodulating alfalfa genotype (nod+fix−) exhibited resistance to vesiscular-arbuscular mycorrhizal (VA mycorrhizal) colonization, when grown in pot cultures inoculated with either Glomus versiforme (Daniels and Trappe) Berth or Glomus intraradices Schenck and Smith. Appressoria, showing considerable variation in size and shape, developed on the root surface, but failed to form any internal structures such as arbuscules and vesicies. Wild-type (nod+fix−) alfalfa seedlings developed normal colonization. This phenomenon will be extremely useful in studying the processes of recognition and compatibility between plant species and VA mycorrhizal fungal species.
Databáze:	OpenAIRE
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