Temperature stress in arbuscular mycorrhizal fungi: a test for adaptation to soil temperature in three isolates of Funneliformis mosseae from different climates
Por:
Gavito, ME, Azcon-Aguilar, C
Publicada:
1 ene 2012
Categoría:
Food Science
Resumen:
It has become urgent to explore the potential stimulations or constraints that increasing and fluctuating temperatures derived from climate change may impose on the mycorrhizal symbiosis. We conducted a study to compare the soil temperature response curves (6, 12, 18, and 24 degrees C) of three isolates of Funneliformis mosseae from different regions and climates (Finland, Denmark, Spain), to test if the isolates from cold environments were able to grow better at lower temperatures and the isolates from warmer environments grew better at higher temperatures. The results provided clear evidence suggesting no adaptation to soil temperature in these AMF isolates. All isolates showed reduced development and especially very little external mycelium growth at 6 and 12 degrees C regardless of the temperatures they normally experienced in their original habitats and all showed similar increasing development with increasing soil temperature. These results suggest that AMF have a narrow window t
Filiaciones:
Gavito, ME:
Univ Nacl Autonoma Mexico, Ctr Invest Ecosistemas, Morelia 58090, Michoacan, Mexico
Gold
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