نتایج جستجو برای: soil fungi

تعداد نتایج: 219876  

Abdolmajid Ronaghi Afshin Morovvat Leila Gholami Mehdi Zarei Mohammad Bagher Heidarianpour Mostafa Emadi

Appropriate management of soil phosphorus (P) fertility in highly calcareous soils of Iran as around the world should rely upon sound knowledge about the phosphorus reserve and its bioavailability. Despite numerous reports on the positive effects of vesicular arbuscular mycorrhizae (VAM) fungi on phosphorus uptake which is associated to Ectomycorrhiza as a branch of two major branches of group ...

Journal: :Trends in plant science 2014
Scott W Behie Michael J Bidochka

Almost all plant species form symbioses with soil fungi, and nutrient transfer to plants is largely mediated through this partnership. Studies of fungal nutrient transfer to plants have largely focused on the transfer of limiting soil nutrients, such as nitrogen and phosphorous, by mycorrhizal fungi. However, certain fungal endophytes, such as Metarhizium and Beauveria, are also able to transfe...

ژورنال: زیست شناسی ایران 2017

Contamination of soil with heavy metals has detrimental effects on ecosystems, because heavy metals accumulated in soil may persist and affect terrestrial ecosystems for a long time. Phytoremediation, as sustainable, low-cost and environmental friendly technology based on the direct use of plants for in situ remediation of contaminated soil, sludges, sediments, and ground water through contamin...

2016
E. S. Challaraj Emmanuel S. Maruthamuthu

Five soil-transmitted pathogenic fungi (Aspergillus niger) were isolated and selected to investigate the effect of Rare earth elements on their disease causing ability. The present study reveals the response of leguminous plant (Arachis hypogaea L.) to monazite soil containing Rare earth elements. A significant increase in plant biomass, total chlorophyll content and stress resistant product (p...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
h. pages 21-27 saremi m. okhovvat h. saremi

the pistachio gardens in iran rival other countries with 280000 hectares and rank first in the world in terms of annual production 300,000 mts. ecological factors for pistachio planting favor the growth of aspergillus flavus which produce aflatoxin as secondary metabolites which reduces pistachio exports. it is important to control a. flavus and its aflatoxin production to increase pistachio ex...

Journal: :Environmental pollution 2008
Ana P G C Marques Rui S Oliveira António O S S Rangel Paula M L Castro

Zn accumulation in Solanum nigrum grown in naturally contaminated soil in the presence of different types of organic amendments was assessed. Under the same conditions, the response of the plant to inoculation with two different isolates of arbuscular mycorrhizal fungi (AMF) (Glomus claroideum and Glomus intraradices) was also evaluated. S. nigrum grown in the non-amended soil always presented ...

2011
Margaret W. Mwangi Ethel O. Monda Sheila A. Okoth Joyce M. Jefwa

A green house study was conducted to investigate the ability of an isolate of Trichoderma harzianum (P52) and arbuscular mycorrhizal fungi (AMF) in enhancing growth and control of a wilt pathogen caused by Fusarium oxysporum f. sp. lycopersici in tomato seedlings. The plants were grown in plastic pots filled with sterilized soils. There were four treatments applied as follows; P52, AMF, AMF + P...

Journal: :Ecology 2012
Jason D Hoeksema Jesus Vargas Hernandez Deborah L Rogers Luciana Luna Mendoza John N Thompson

A key problem in evolutionary biology is to understand how multispecific networks are reshaped by evolutionary and coevolutionary processes as they spread across contrasting environments. To address this problem, we need studies that explicitly evaluate the multispecific guild structure of coevolutionary processes and some of their key outcomes such as local adaptation. We evaluated geographic ...

2018
Owen G. Osborne Rishi De‐Kayne Martin I. Bidartondo Ian Hutton William J. Baker Colin G. N. Turnbull Vincent Savolainen

Microbes can have profound effects on their hosts, driving natural selection, promoting speciation and determining species distributions. However, soil-dwelling microbes are rarely investigated as drivers of evolutionary change in plants. We used metabarcoding and experimental manipulation of soil microbiomes to investigate the impact of soil and root microbes in a well-known case of sympatric ...

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