Moisture and substrate stability determine VA-mycorrhizal fungal community distribution and structure in an arid grassland

Preliminary study on biodiversity of arbuscular mycorrhizal fungi (AMF) in oil palm (Elaeis guineensisJacq.) plantations in Thailand

“…Furthermore, the relationship between soil characteristics and AMF values might be affected by land use history such as fertilizer and herbicide applications in plantations. The non-significant correlation between AMF biodiversity and MIP values was comparable with several studies which showed no significant correlation between AMF biodiversity found in the samples and MIP of host plants: from rhizospheric soil samples of rhododendron species in Kumaun region of the Indian Central Himalaya [7] and from both transects in arid grassland [23].…”

Population of arbuscular mycorrhizal fungi in semi-arid environment of Jordan as influenced by biotic and abiotic factors

“…The absence of clear-cut trend in spore densities within the samples collected may suggest that other factors could have an effect on AMF distribution. Seely (1991) and Jacobson (1997) reported that biotic factors are relatively less important than abiotic factors for establishing population patterns and found that the duration of moisture availability determines the level of AMF colonization. Level of soil fertility is believed to be an important factor influencing the AM population (Hayman, 1982).…”

Propágulos de fungos micorrízicos arbusculares em solos deficientes em fósforo sob diferentes usos, da região semi-arida no nordeste do Brasil

“…Esperava-se que as categorias CultP e CultD também apresentassem aumentos em colonização e esporos viáveis em relação à CaatP, semelhantemente ao verificado após o desmatamento e a substituição por gramíneas em outros ecossistemas (Siqueira et al, 1989;Fischer et al, 1994;Picone, 2000;Carpenter et al, 2001). Entretanto, as categorias CultP e CultD representaram condições ambientais de maior estresse, não somente por conta da condição semi-árida (Jacobson, 1997), compartilhada com as outras categorias, mas particularmente pelo manejo inadequado das áreas nas categorias CultP e CultD, que por ocasião da amostragem não apresentavam quase nenhuma cobertura vegetal. Nesse sentido, a categoria CaatR representou uma situação de estresse menor, que estimulou os FMA.…”