Growth of different tree species and their nutrient uptake in limestone mine spoil as influenced by arbuscular mycorrhizal (AM)-fungi in Indian arid zone

Effect of NaCl on growth and ion relations in two salt-tolerant strains of Paxillus involutus

“…They conclude that improved performance of mycorrhizal poplar under salt stress may result from diminished xylem loading of Na + and increased supply with K + (Langenfeld-Heyser et al, 2007). In accordance, AM (arbuscular mycorrhizal) fungi enhanced uptake of K + , Mg 2+ and Ca 2+ and improved nutrient status of host plants under salinity conditions (Rao and Tak, 2002;Rabie and Almadini, 2005).…”

Inorganic phosphorus fractions in the rhizosphere of xerophytic shrubs in the Alxa Desert

“…Growing in soils with low P availability, plants can response to soil in several ways. The influence of mycorrhizae on P acquisition by plants is well known (Marschner, 1990;Rao and Tak, 2002;Wilcox, 1996). Many plant species increase root secretory activities such as exudation of organic acid (Bertin et al, 2003;Jones, 1998), phytase (Yadav and Tarafdar, 2004) and modulate kinetics of phosphate transport across cellular membranes (Raghothama and Karthikeyan, 2005;Rausch and Bucher, 2002;Schachtman et al, 1998) to absorb more P. Furthermore, formation of root clusters (Neumann et al, 2000;Shane et al, 2003;Shane and Lambers, 2006) and other modifications of root morphology are also important strategies for utilizing P. Based on these, different plant species and genotypes possess different rhizosphere characteristics (Rengel and Marschner, 2005), and the P status in rhizosphere is expected to sharply differ from the bulk soil.…”

Salinity and Drought Management in Legume Crops

“…Therefore, bacterial nitrogen fixation (NBF) in legumes may decrease under salinity stress. The activities of nitrogenase and phosphates enzymes (acid and alkaline) were significantly reduced by raising salinity in faba bean (Khan, 2001;Ferreira et al, 2001;Rao and Tak, 2002;Yano-Melo et al, 2003;Parida et al, 2004;Zandavalli et al, 2004;.…”