caa a22 4500 605518076 CHVBK 20210128100723.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00572-014-0600-9 doi (NATIONALLICENCE)springer-10.1007/s00572-014-0600-9 Effectiveness of native and exotic arbuscular mycorrhizal fungi on nutrient uptake and ion homeostasis in salt-stressed Cajanus cajan L. (Millsp.) genotypes [Elektronische Daten] [Neera Garg, Rekha Pandey] Soil salinity is an increasing problem worldwide, restricting plant growth and production. Research findings show that arbuscular mycorrhizal (AM) fungi have the potential to reduce negative effects of salinity. However, plant growth responses to AM fungi vary as a result of genetic variation in mycorrhizal colonization and plant growth responsiveness. Thus, profitable use of AM requires selection of a suitable combination of host plant and fungal partner. A greenhouse experiment was conducted to compare effectiveness of a native AM fungal inoculum sourced from saline soil and two single exotic isolates, Funneliformis mossseae and Rhizophagus irregularis (single or dual mix), on Cajanus cajan (L.) Millsp. genotypes (Paras and Pusa 2002) under salt stress (0-100mM NaCl). While salinity reduced plant biomass and disturbed ionic status in both genotypes, Pusa 2002 was more salt tolerant and ensured higher AM fungal colonization, plant biomass and nutrient content with favourable ion status under salinity. Although all AM fungi reduced negative effects of salt stress, R. irregularis (alone or in combination with F. mosseae) displayed highest efficiency under salinity, resulting in highest biomass, yield, nutrient uptake and improved membrane stability with favourable K+/Na+ and Ca2+/Na+ ratios in the host plant. Higher effectiveness of R. irregularis correlated with higher root colonization, indicating that the symbiosis formed by R. irregularis had more stable viability and efficiency under salt stress. These findings enhance understanding of the functional diversity of AM fungi in ameliorating plant salt stress tolerance and suggest the potential use of R. irregularis for increasing Cajanus cajan productivity in saline soils. Springer-Verlag Berlin Heidelberg, 2014 Arbuscular mycorrhiza nationallicence Cajanus cajan nationallicence Functional diversity nationallicence Ion homeostasis nationallicence Nutrient uptake nationallicence Salinity nationallicence Garg Neera Department of Botany, Panjab University, 160014, Chandigarh, India aut Pandey Rekha Department of Botany, Panjab University, 160014, Chandigarh, India aut Mycorrhiza Springer Berlin Heidelberg 25/3(2015-04-01), 165-180 0940-6360 25:3<165 2015 25 572 https://doi.org/10.1007/s00572-014-0600-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00572-014-0600-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Garg Neera Department of Botany, Panjab University, 160014, Chandigarh, India aut NATIONALLICENCE 700 1- Pandey Rekha Department of Botany, Panjab University, 160014, Chandigarh, India aut NATIONALLICENCE 773 0- Mycorrhiza Springer Berlin Heidelberg 25/3(2015-04-01), 165-180 0940-6360 25:3<165 2015 25 572