Boby V U, Balakrishna A N, Bagyaraj D J
Department of Agricultural Microbiology, University of Agricultural Sciences, GKVK, Bangalore-560065, India.
Microbiol Res. 2008;163(6):693-700. doi: 10.1016/j.micres.2006.10.004.
A glass house experiment was conducted to study the interaction between the mycorrhizal fungus, Glomus mosseae and six soil yeasts (Rhodotorula mucilaginosa, Metschnikowia pulcherrima, Trichosporon cutaneum var. cutaneum, Saccharomyces cerevisiae, Cryptococcus laurentii, Debaryomyces occidentalis var. occidentalis), and their effect on growth and nutrition of cowpea. All the yeasts had a synergistic interaction with the mycorrhizal fungus and dual inoculation improved plant growth compared to single inoculation with G. mosseae alone. Nitrogen and phosphorus uptake of plants was also enhanced significantly in G. mosseae and soil yeasts combinations. Growth, N, P, chlorophyll and phenol content and yield of cowpea were highest in plants treated with G. mosseae+R. mucilaginosa. Mycorrhizal root colonization, spore numbers and population of yeasts in the root zone soil were also highest in the treatment G. mosseae+R. mucilaginosa and least in the uninoculated plants.
进行了一项温室试验，以研究菌根真菌摩西管柄囊霉（Glomus mosseae）与六种土壤酵母（粘红酵母（Rhodotorula mucilaginosa）、美极梅奇酵母（Metschnikowia pulcherrima）、皮状丝孢酵母皮状变种（Trichosporon cutaneum var. cutaneum）、酿酒酵母（Saccharomyces cerevisiae）、罗伦隐球酵母（Cryptococcus laurentii）、西方德巴利酵母西方变种（Debaryomyces occidentalis var. occidentalis））之间的相互作用，以及它们对豇豆生长和营养的影响。所有酵母与菌根真菌都具有协同相互作用，与单独接种摩西管柄囊霉相比，双重接种提高了植物生长。摩西管柄囊霉与土壤酵母组合也显著提高了植物对氮和磷的吸收。在接种摩西管柄囊霉+粘红酵母的植物中，豇豆的生长、氮、磷、叶绿素和酚含量以及产量最高。在摩西管柄囊霉+粘红酵母处理中，菌根根定殖、孢子数量和根际土壤中酵母数量也最高，在未接种植物中最少。
