Interest in the diversity of arbuscular mycorrhizal (AM) fungal communities has been stimulated by recent data that demonstrate that fungal communities influence the competitive hierarchies, productivity, diversity, and successional patterns of plant communities. Although natural communities of AM fungi are diverse, we have a poor understanding of the mechanisms that promote and maintain that d...

The colonisation intensity and composition of the mycorrhizal community in the aquatic plants Lobelia dortmanna and Littorella uniflora were studied. The mycorrhizal fungi were characterised by fungal specific nested PCR and sequencing using the 5'-end of the LSU rDNA as target. For this, primers for the clade of Acaulospora, the clade including Glomus mosseae and G. intraradices and the clade ...

Arbuscular mycorrhizal fungi (AMF) are ubiquitous and establish important symbiotic relationships with the majority of the plants, even in soils contaminated with arsenic (As). In order to better understand the ecological relationships of these fungi with excess As in soils and their effects on plants in tropical conditions, occurrence and diversity of AMF were evaluated in areas affected by go...

The African clawed frog, Xenopus laevis, is a versatile model for biomedical research and largely similar to mammals in terms of organ development, anatomy, physiology, hormonal signaling mechanisms. Steroid hormones control variety processes their levels are regulated by hydroxysteroid dehydrogenases (HSDs). subfamily 20β-HSD type 2 enzymes currently comprises eight members from teleost fish m...

The aim of this work was to evaluate the occurrence of arbuscular mycorrhizal fungi (AMF) species diversity in soil samples from the Amazon region under distinct land use systems (Forest, Old Secondary Forest, Young Secondary Forest, Agroforestry systems, Crops and Pasture) using two distinct trap cultures. Traps established using Sorghum sudanense and Vigna unguiculata (at Universidade Regiona...

An investigation was carried out to study the AM fungal association in Sida cardifolia from different parts of Karnataka. AM colonization in the roots, spore load and Phosphatase activity in the root zone soil collected from different parts of Karnataka were determined. AM root colonization was more in the roots of Sida cardifolia collected from Kolar and least in case of root samples collected...

The present study shows the status of mycorrhization in three test varieties of chickpea. As the results revealed irrespective to the crops when arbuscular mycorrhizal fungi (AMF) were assessed under the influence of soil quality better results were obtained with unsterile soil in comparison to sterile soil. Chickpea variety ICC 11322 showed the best result against the Fusarium wilt and chickpe...

The effect of dormancy in zooplankton populations is still unknown, largely because of the lack of methods to estimate hatching and production of the dormant stages. This study aimed to compare the production and hatching rates of ephippia of Daphnia laevis between thermal stratification and mixing periods in Jacaré Lake (Middle Rio Doce, Minas Gerais, Brazil). For this, we collected ephippia o...

Inoculating plants with arbuscular mycorrhizal fungi (AMF) protects host against biotic stressors such as diseases. Therefore, the objective of this study was to evaluate influence in biological control coffee leaf rust (CLR) infections. The research involved two varieties (Caturra and Pache) three inocula AMF: Moyobamba (Acaulospora mellea, Acaulospora sp.1, Glomus geosporum, sp.2), El Dorado ...

to identify arbuscular mycorrhiza fungi (amf) associated with crataegus pontica c. koch, 54 soil samples were collected from the rhizosphere of this plant in ilam province, western iran. isolation of mycorrhizal spores was conducted by wet sieving followed by centrifuge. amf were identified based on morphological characteristics of spores. in this study, 13 species of amf belonging to five gene...