Mucor species in orchard soil – population dynamics and pathogenicity on pear fruit
Marta Mari, Tiziano Cembali, Lucia Casalini and Gian Carlo Pratella
European Journal of Plant Pathology 106 (5): 449-454. 2000.
2000
บทคัดย่อ
Mucor species in orchard soil – population dynamics and pathogenicity on pear fruitStrains of Mucor piriformis were isolated from orchard soils and from packinghouse dump-tank waters. Pathogen propagules were not found in fruit sample washings. M. piriformis was the most prevalent of the Mucorisolates, only one of 67 isolates was a different Mucor sp., possibly M. racemosus. The population of the pathogen propagules fluctuated in an annual cyclic pattern, declining in warm months and increasing after harvest. The viability of sporangiospores was markedly affected by rain. There was a good correlation (r=0.88) between the number of recovered propagules in the soil and the amount of rainfall. M. piriformis isolates caused decay on pear at 0°C after 14 days.