Mucor Species in Orchard Soil – Population Dynamics and Pathogenicity on Pear Fruit

Strains 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 Mucor isolates, only one of 67 isolates was a different Mucor sp., possibly M. racemosus. The...

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Bibliographic Details
Published in:European journal of plant pathology 2000-06, Vol.106 (5), p.449-454
Main Authors: Mari, Marta, Cembali, Tiziano, Casalini, Lucia, Pratella, Gian Carlo
Format: Article
Language:English
Subjects:
Biological and medical sciences
Fruits
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
Mucor piriformis
orchard soils
Orchards
packing houses
pathogenicity
Pathogens
Pathology, epidemiology, host-fungus relationships. Damages, economic importance
pears
Phytopathology. Animal pests. Plant and forest protection
Plant diseases
Plant pathology
Plant populations
population dynamics
rain
Soils
strains
Trees
viability
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Summary:Strains 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 Mucor isolates, 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.
ISSN:0929-1873
1573-8469
DOI:10.1023/A:1008751328500