Effect of salinity stress on mycorrhizal association and growth response of peanut infected by Glomus mosseae

Abstract

Arbuscular mycorrhiza is a mutualistic association between fungi and higher plants, and play a critical role in nutrient cycling and stress tolerance. However, much less is known about the mycorrhiza-mediated enhancement in growth and salinity tolerance of the peanuts (Arachis hypogaea L.) growing in the arid and semi-arid areas. Therefore, mycorrhizal status of Glomus mosseae in diverse salinity levels on original substrate soil conditions was investigated. Different growth parameters, accumulation of proline content and salt stress tolerance were studied. These investigations indicated that the arbuscular mycorrhizal fungi could improve growth of peanuts under salinity through enhanced nutrient absorption and photosynthesis. Chlorophyll content and leaf water content were increased significantly under salinity stress by the inoculation with mycorrhizal fungi. Tolerance of the plants to salinity was increased and the mycorrhizal association was found highly effective in enhancing peanut growth and establishment in soils under salinity and deficient in phosphorus.

Mitigation of NaCl Stress by Arbuscular Mycorrhizal Fungi through the Modulation of Osmolytes, Antioxidants and Secondary Metabolites in Mustard (Brassica juncea L.) Plants

“…Arbuscular mycorrhizal fungi (AMF) are ubiquitous as compared to other organisms inhibiting the rhizosphere. AMF enhances the plant growth and development by helping plants in the nutrient uptake and improving the rhizospheric soil health ( Linderman, 1994 ; Al-Khaliel, 2010 ). AMF improves several physiological processes in host plants including water absorption potential of plants by increasing the hydraulic conductivity of roots ( Al-Karaki and Clark, 1998 ; Ruiz-Lozano and Azcon, 2000 ; Ruiz-Lozano, 2003 ).…”

Colonization of Arbuscular mycorrhizal fungi improve salinity tolerance of Eucalyptus (Eucalyptus camaldulensis Dehn.) seedlings

“…Proline accumulation in plants may be responsive in less salt-tolerance species or to salinity and not necessarily to AMF, because many authors have reported that proline concentration increased in AMF plants compared to non-AMF plants [36]. Conversely, other authors have reported greater proline accumulations in non-AMF plants than AMF plants for example, in Ocimum basilicum L. [37] and Arachis hypogaea L. [38]. From the results, AMF could enhance eucalyptus nutrients uptake; high concentrations of nitrogen (N), Phosphorus (P) and Potassium (K) and low concentrations of Sodium (Na) were found in Gi.…”

“…albida with eucalyptus strains H4 and H8, and in Glomus sp.2 with eucalyptus strain P6. Although salinity stress decreased nutrient uptake, many studies have reported increasing salinity levels lowered N and K concentrations, for example in pepper, olive, peanut and chili [39][40][41][42]. High concentrations of K can be helpful to maintain K/Na ratio, cell osmotic potential from plays control of water relation and effects to increase photosynthetic rate.…”

Interactions between Mycorrhizal Fungi, Tea Wastes, and Algal Biomass Affecting the Microbial Community, Soil Structure, and Alleviating of Salinity Stress in Corn Yield (Zea mays L.)

“…Furthermore, this study has enormous evidences confirmed that the incorporation of AM fungi with tea wastes increased the adaption of the corn plant to salinity through enhancing the mean weight diameter, organic carbon content, and bacterial and fungal abundance. An improvement in soil structure can enhance the soil moisture content and water infiltration leading to perfect roots density and implications for the nutrients uptake and productivity [ 59 ]. Moreover, organic carbon can increase the plant growth by enhancing the biophysical properties of soil [ 60 , 61 , 62 , 63 , 64 ].…”