scholarly journals Soil depth: an overriding factor for distribution of arbuscular mycorrhizal fungi

2013 ◽  
pp. 0-0 ◽  
Author(s):  
A Shukla ◽  
D Vyas ◽  
Jha Anuradha
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Soil Depth ◽  
Arbuscular Mycorrhizal

scholarly journals Arbuscular mycorrhizal fungi in saline soils: vertical distribution at different soil depth

2014 ◽  
Vol 45 (2) ◽  
pp. 585-594 ◽  
Author(s):  
Alejandra Becerra ◽  
Norberto Bartoloni ◽  
Noelia Cofré ◽  
Florencia Soteras ◽  
Marta Cabello
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Vertical Distribution ◽  
Mycorrhizal Fungi ◽  
Soil Depth ◽  
Arbuscular Mycorrhizal ◽  
Saline Soils

scholarly journals Arbuscular Mycorrhizal Fungi Colonization in the Rhizosphere of Aspilia pruliseta Schweif. ext Schweif in the Semiarid Eastern Kenya

2020 ◽  
Vol 13 ◽  
pp. 117862212096919
Author(s):  
James Peter Muchoka ◽  
Daniel Njiru Mugendi ◽  
Paul Nthakanio Njiruh ◽  
Charles Onyari ◽  
Paul Kamau Mbugua ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Sandy Loam ◽  
Soil Depth ◽  
Arbuscular Mycorrhizal ◽  
Phosphate Deficiency ◽  
Similar Amount ◽  
Negative Consequences ◽  
Spore Count ◽  
Biological Technique

The use of arbuscular mycorrhizal fungi (AMF) to enhance soil phosphate uptake is a biological technique considered to cure phosphate deficiency in soils. This study investigated association of Aspilia pruliseta Schweif shrub with AMF in Kenya. The study aims at profiling a tropical shrub with multiple ecological benefits that could reduce addition of chemical phosphatic fertilizer into the soil and reverse negative consequences of eutrophication. Sampling was purposive to have areas with or without Aspilia pruliseta vegetation growing. A small amount (10 g) of the soil from 27 composite samples was used for spore count determination and a similar amount for next generation sequencing. Spore counts varied significantly among soil textural types, sample locations, and soil depth. Sandy loam had the highest spore counts with a mean average of 404 spores. The spore count decreased significantly ( P < .05) with the depth of soil from a mean of 514 spores to 185 along the rhizosphere. The intensity of spore morphotypes was significantly higher at P < .05 for soils whose vegetation was covered with Aspilia pruliseta than those without. Aspilia pruliseta vegetation used together with sandy loam soil could culture commercial mycorrhiza fungi production for use in agrisystems.

scholarly journals Optimization of Flooded Soil Recovery via Plant- Arbuscular Mycorrhizal Fungi Symbiotic Interaction

2017 ◽  
Vol 19 ◽  
pp. 67
Author(s):  
Nor Hazwani Aziz ◽  
Norazwina Zainol ◽  
Nanthinie Thangaperumal ◽  
Nor Hanisah Zahari
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Water Content ◽  
Mycorrhizal Fungi ◽  
Chemical Engineering ◽  
Soil Depth ◽  
Arbuscular Mycorrhizal ◽  
Flooded Soil ◽  
Phosphorus And Potassium ◽  
Soil Recovery ◽  
Nitrogen Phosphorus

<p>Flooded soil recovery was optimized using experimental design methodology by manipulating the symbiotic relationship between soil fungi, Arbuscular Mycorrhizal Fungi (AMF) and the host plant (Allium cepa L.) planted in a soil containing AMF (SA). This was achieved by measuring the amount of nutrient (nitrogen, phosphorus and potassium) uptake by AMF using HACH spectrophotometer after 14 days of planting in several condition suggested by Design-Expert® software (Ver 7.1.6). In order to determine the optimum condition for the AMF to recover the flooded soil, the experiments were designed according to a central composite design in two variables following the Response Surface Methodology (RSM). A quadratic polynomial model was generated to predict soil recovery. R2 for nitrogen, phosphorus and potassium was found at 0.89, 0.96 and 0.94 respectively of the range for the factors studied namely 24-32 ml water content and 4.0-6.0 cm depth of soil. Among two parameters, depth of soil showed significant effect on the recovery of flooded soil for phosphorus and potassium while for nitrogen both parameters showed insignificant effect. Model validation experiments showed good correspondence between experimental and predicted values at error for N, P, and K at 7.0%, 1.86% and 2.65% respectively. The optimal condition for soil recovery was at 28 ml soil water content and 5 cm soil depth. At this condition, the nutrient uptake by AMF was predicted to be at their maximum rate where the concentration of nutrients increased approximately by 2 to 3 times from the initial nutrient concentration.</p><p>Chemical Engineering Research Bulletin 19(2017) 67-74</p>

Seasonal variation and distribution at different soil depths of arbuscular mycorrhizal fungi spores in a tropical sclerophyllous shrubland

Botany ◽  
2010 ◽  
Vol 88 (1) ◽  
pp. 54-64 ◽  
Author(s):  
Gisela Cuenca ◽  
Milagros Lovera
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Soil Depth ◽  
Arbuscular Mycorrhizal ◽  
Tropical Soils ◽  
Spore Density ◽  
Soil Cores ◽  
Limited Information ◽  
Different Seasons ◽  
Different Depths

Limited information is available for the diversity of arbuscular mycorrhizal fungi (AMF) in most tropical soils. To assess the biodiversity of AMF in a sclerophyllous shrubland ecosystem, an exhaustive collection of spores from soil collected in the Venezuelan Guayana was undertaken. Spores were collected from the first 15 cm of soil, four times throughout the year, and at four different depths during dry and wet seasons. A total of 50 AMF morphotypes were collected in the field, and 2 more were isolated from pot cultures. There was a reduction in spore density with soil depth, although richness of spores remained the same up to a depth of 45 cm. Spore density and richness based on soil cores were higher in the dry season than in the rainy season. Only 24% of the AMF morphotypes present could be identified to species level, since most of them did not fit published descriptions available. It is important to perform an exhaustive sampling of spores in the different seasons throughout the year and at different soil depths to obtain an accurate view of AMF spore diversity associated with a particular ecosystem.

scholarly journals Hongos arbusculares (Glomeromycota) en la rizosfera de Atriplex lampa en dos ambientes salinos de Córdoba: influencia de la profundidad en la colonización radical y presencia de morfoespecies Arbuscular fungi (Glomeromycota) in the rhizosphere of ...

1970 ◽  
Vol 48 (2) ◽  
pp. 211-219 ◽  
Author(s):  
Florencia Soteras ◽  
Noelia Cofré ◽  
José Bartoloni ◽  
Marta Cabello ◽  
Alejandra Becerra
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Soil Depth ◽  
Arbuscular Mycorrhizal ◽  
Saline Soils ◽  
Wet Season ◽  
Mycorrhizal Dependency ◽  
Saline Environments ◽  
Rooting Zone

Summary: Arbuscular fungi (Glomeromycota) in the rhizosphere of Atriplex lampa at two saline environments of Córdoba (Argentina): depth influence on root colonization and the presence of morphospecies. Atriplex lampa is a valuable fodder shrub available for browsing by livestock even during drought periods in the Chaco Phytogeographical Province. Halophytes may benefit from the association with arbuscular mycorrhizal fungi (AMF) through improved tolerance to drought and salt. Ecological studies of AMF are generally restricted to the main rooting zone. However, AMF vertical distribution and seasonal dynamics in natural saline soils of Argentina have been poorly studied. The aim of this work was to explore AMF root colonization, root concentration and to identify AMF morphoespecies in A. lampa rhizosphere in two saline environments (Salinas de Ambargasta and Salinas Grandes) of central Argentina, in five soil depth levels, during the wet and dry seasons. Despite we did not find arbuscules, AMF were found colonizing A. lampa roots in all depth levels. Salinas Grandes showed the highest root colonization value, and showed the highest root concentration, during wet season. The 20 AMF morphospecies identified in this work belonged to the genera: Acaulospora, Ambispora, Claroideoglomus, Diversispora, Funneliformis, Glomus, Septoglomus and Scutellospora. This is the second record in Argentina of AMF structures in A. lampa roots. Future studies that evaluate mycorrhizal dependency of the plant are necessary to confirm the function of the symbiosis.Key words: Arbuscular mycorrhizal fungi; saline soils; Atriplex lampa; depth soil; seasonality.Resumen: Atriplex lampa es un arbusto halófito de la provincia fitogeográfica Chaqueña que constituye un recurso forrajero a lo largo de todo el año. Las plantas halófitas se pueden beneficiar al asociarse con los hongos micorrícico arbusculares (HMA), ya que le proveen resistencia contra la salinidad y la sequía. En general, los estudios acerca de los HMA están restringidos a los primeros centímetros del suelo y existe poca información sobre su presencia a mayores profundidades. El objetivo de este trabajo fue estudiar la colonización, la concentración radical e identificar las morfoespecies de HMA en la rizosfera de A. lampa en dos ambientes salinos del norte de la provincia de Córdoba, durante dos estaciones del año, y en cinco profundidades del suelo. Aunque no se encontraron arbúsculos, A. lampa presentó colonización radical por HMA en todas las profundidades. El mayor valor de colonización micorrícica y de concentración radical se observó en las Salinas Grandes. Se identificaron 20 morfoespecies de HMA pertenecientes a los géneros: Acaulospora, Ambispora, Claroideoglomus, Diversispora, Funneliformis, Glomus, Septoglomus y Scutellospora.Este es el segundo registro en Argentina de la presencia de HMA en raíces de A. lampa. Es necesario realizar estudios que evalúen la respuesta de A. lampa frente a la inoculación con HMA para confirmar la funcionalidad de la simbiosis.Palabras clave: Hongos micorrícico arbusculares; suelos salinos; Atriplex lampa; profundidad del suelo, estacionalidad.

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