Total and structure colonization by arbuscular mycorrhizal fungi in native, perennial grasses of different forage quality exposed to defoliation
- Ambrosino, Mariela Lis
- Busso, Carlos Alberto
- Cabello, Marta Noemí
- Velázquez, María Silvana
- Torres, Yanina Alejandra
- Ithurrart, Leticia Soledad
- Cardillo, Daniela Solange
- Palomo, Iris Rosana
DOIAbstract
Defoliation can compromise the quality and quantity of colonization by arbuscular mycorrhizal fungi (AMF), which contribute to vegetation persistence in semiarid rangelands. The effects of defoliation on total arbuscular mycorrhizal (AM) colonization percentage and on that of its structures (i.e., vesicles, arbuscules) were evaluated on three native, rangeland perennial grass species. These species (i.e., Poa ligularis, Nassella tenuis and Amelichloa ambigua) show different palatability to domestic livestock in Central Argentina. In August 2012, soil + roots (0–10 cm depth) were sampled below the foliage of 12 plants of each species. Half of the plants were then defoliated to 5 cm stubble leaving active meristems intact after defoliation. T...
Add to ORKG