三种苜蓿结瘤基因型与两种球囊霉属物种之间的相互作用。

Interactions between three alfalfa nodulation genotypes and two Glomus species.

作者信息

Bradbury S M, Peterson R L, Bowley S R

机构信息

Department of Botany, University of Guelph, Guelph, Ontario, NIG 2W1, Canada.

Department of Crop Science, University of Guelph, Guelph, Ontario, NIG 2W1, Canada.

出版信息

New Phytol. 1991 Sep;119(1):115-120. doi: 10.1111/j.1469-8137.1991.tb01014.x.

DOI:10.1111/j.1469-8137.1991.tb01014.x

PMID:33874326

Abstract

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.

摘要

一种非结瘤苜蓿（紫花苜蓿L.）基因型（nod fix ）和一种无效结瘤苜蓿基因型（nod fix ）的幼苗，当种植在接种了多梗球囊霉（Daniels和Trappe）Berth或根内球囊霉Schenck和Smith的盆栽培养物中时，表现出对泡囊-丛枝菌根（VA菌根）定殖的抗性。附着胞在根表面形成，大小和形状有很大差异，但未能形成任何内部结构，如丛枝和泡囊。野生型（nod fix ）苜蓿幼苗形成了正常的定殖。这种现象在研究植物物种与VA菌根真菌物种之间的识别和兼容性过程中将非常有用。