Superoxide dismutase and total peroxidase activities in relation to drought recovery performance of mycorrhizal shrub seedlings grown in an amended semiarid soil

Mycorrhiza has a direct effect on reactive oxygen metabolism of drought-stressed citrus

“…The mechanism might be that AMF themselves possess several special genes encoding for antioxidant enzymes, whose expression patterns can regulate the activities of antioxidant enzymes independently, regardless of the mycorrhizal colonized levels. On the other hand, although the AM colonization decreased so much in only 12 days of drought, it does not exclude that the Root Leaf amelioration of photosynthetic rate, plant biomass, and nutrient status due to mycorrhization might be linked with the increased activities of antioxidant enzymes in mycorrhizal plants (Alguacil et al 2003, Huang et al 2008, Roldán et al 2008.…”

The Role of Plants in the Effects of Global Change on Nutrient Availability and Stoichiometry in the Plant-Soil System

“…Coinciding with these general physiological responses, an increase of mycorrhizal symbiosis under drought is frequently observed in field studies (RuizLozano et al, 1995;Davies et al, 1996;Al-Karaki and Al-Raddad, 1997;Shi et al, 2002;Roldán et al, 2008). The enhancement of mycorrhizal symbiosis improves the capacity of plants to take up both water and nutrients (Ruiz-Lozano et al, 1995;Alvarez et al, 2009;Wu et al, 2011a).…”

Effect of Mycorrhizal Colonization on Nitrogen and Phosphorous Metabolism in Wheat (Triticum aestivum L.) under Water Deficit Stress

“…Also, the role of AMF is to overcome the nutrient limitation for plant growth by enhancing nutrient acquisition, especially phosphorus (P). Nevertheless, few authors have highlighted the importance of mycorrhizal association for nitrogen (N) nutrition (Guescini et al, 2007;Roldan et al, 2008). Inorganic P has low solubility, which results in very low mobility; consequently, a depletion zone develops when roots absorb inorganic phosphate.…”

“…Mycorrhiza can also improve plant uptake of potassium (K). Potassium also plays a key role in plant water stress and has been found to be the cationic solute which is responsible for stomatal movement in response to drought stress, however the protection of mycorrhizal plants against water stress was related to the increase of K uptake by the mycorrhizal fungi (Roldan et al, 2008). Wheat is nature's unique gift to mankind as it is an excellent source of nutrition in terms of carbohydrates, minerals and proteins.…”