The draft genome sequences of Klebsiella variicola strain KV321, which was isolated from rhizosphere soil of Pisolithus tinctorius-Eucalyptus mycorrhiza, are reported here. The genome sequences contain genes involved in ABC transporter function in multiple-antibiotic drug resistance and colonization. This genomic analysis will help understand the genomic basis of K. variicola virulence genes an...

Phytophthora-infected plants. These results suggest some diversity in the chitinase activities concerning New chitosanase acidic isoforms have been shown in substrate specificity in mycorrhizal plants. The Glomus mosseae-colonized tomato roots and their possible implications of these observations in the induction, together with the previously described functioning of the symbiosis is discussed....

introduction: providing the nutritional requirements of agricultural crops by non-chemical resources is a new approach in the organic farming that has attracted the attention of both the researchers and the consumers in recent years. therefore, it is highly important to find new fertilizer resources that are both economically able to provide the nutritional needs of the crop plants and have no ...

The formation of symbiotic associations with arbuscular mycorrhizal (AM) fungi is a phenomenon common to the majority of vascular flowering plants. Here, we used cDNA arrays to examine transcript profiles in Medicago truncatula roots during the development of an AM symbiosis with Glomus versiforme and during growth under differing phosphorus nutrient regimes. Three percent of the genes examined...

The relevance of the symbiosis-induced Medicago truncatula sucrose synthase gene MtSucS1 for an efficient arbuscular mycorrhiza (AM) was studied using two independent antisense lines that displayed up to 10-fold reduced SucS1 levels in roots. Mycorrhizal MtSucS1-reduced lines exhibited an overall stunted aboveground growth under inorganic phosphorus limitation. Apart from a reduced plant height...

Studies on Rhizobium-legume symbiosis show that trehalose content in nodules under drought stress correlates positively with an increase in plant tolerance to this stress. Fewer reports describe trehalose accumulation in mycorrhiza where, in contrast with rhizobia, there is no flux of carbohydrates from the microsymbiont to the plant. However, the trehalose dynamics in the Mycorrhiza-Rhizobium-...

The symbiosis between ectomycorrhizal fungi and trees is an essential part of forest ecology and depends entirely on the communication between the two partners for establishing and maintaining the relationship. The identification and characterization of differentially expressed genes is a step to identifying such signals and to understanding the regulation of this process. We determined the rol...