"Candidatus Glomeribacter gigasporarum" is an endocellular beta-proteobacterium present in the arbuscular mycorrhizal (AM) fungus Gigaspora margarita. We established a protocol to isolate "Ca. Glomeribacter gigasporarum" from its host which allowed us to carry out morphological, physiological, and genomic investigations on purified bacteria. They are rod shaped, with a cell wall typical of gram...

The influence of Aphelenchus avenae on the relationship between cotton (Gossypium hirsutum 'Stoneville 213') and Gigaspora margarita or Glomus etunicatus was assessed by its effect on the mycorrhizal stimulation of plant growth and microorganism reproduction. The mycophagous nematode usually did not suppress stimulation of shoot growth resulting from mycorrhizae (G. margarita) at inoculum level...

• Arbuscular mycorrhizal fungi (AMF) are ubiquitous organisms that benefit ecosystems through the establishment of an association with the roots of most plants: the mycorrhizal symbiosis. Despite their ecological importance, however, these fungi have been poorly studied at the genome level. • In this study, total DNA from the AMF Gigaspora margarita was subjected to a combination of 454 and Ill...

The production of inoculum is one of the hindrances in the large scale application of arbuscular mycorrhizal fungi (AMF). The objective of this work was to evaluate the effect of nutrient solutions with or without TrisHCl buffer, on sporulation of AMF. The experiment was carried out in a greenhouse, using a substrate with sand and vermiculite (1:1 v/v). Fifty spores of Gigaspora margarita, Scut...

Arbuscular mycorrhizal (AM) fungi function as extended roots and take an active part in plant acquisition of nutrients and also soil pollutants, such as heavy metals. The objective of this study was to establish a method to observe the localization of cadmium (Cd) Kα at subcellular levels using X-ray fluorescence (XRF) imaging with a synchrotron irradiation microbeam in resin-embedded sections ...

Los cítricos son el cultivo frutal de mayor importancia económica en mundo. En Nicaragua, la producción genera 24.5 millones dólares anuales. Las enfermedades que se pueden prevenir inoculando micorrizas porta injertos podredumbre radicular causada por Phytophthora sp y mal seco los Fusarium sp. La introducción patrones resistentes a es una necesidad citricultura actual. las últimas décadas ha ...

This study was conducted to investigate the effects of some plant growth-promoting rhizobacteria (PGPR) on arbuscular mycorrhizal fungi (AMF) formation [Brassica oleracea (cauliflower), Spinacia (spinach) ,and Urtica urens (stinging nettle)] belonging Brassicaceae, Chenopodiaceae and Urticaceae families, which are known have a negative influence symbiotic life with AMF. Two PGPR isolates that c...

Abstract The use of alternative technologies involving biological processes, with economic and ecological gains, is desirable for both the expansion Musa spp. farming renovation areas low yields. Arbuscular mycorrhizal fungi (AMF) can stimulate plant growth, especially by increasing absorption phosphorus (P) other nutrients. This study analyzes influence AMF on growth physiology micropropagated...

The present study was mainly conducted to investigate the survey of arbuscular mycorrhizal biodiversity in rhizosphere soil and root colonization of medicinal plant species in Sirumalai hills, Eastern Ghats of Dindugul district, Tamilnadu. Soil samples were collected during the month of September 2014 from the surface to 30 cm depth and pH was measured. Rhizosphere soil root of 20 plant species...