Effect of temperature on the morphological characteristics of Botrytis cinerea and its correlated with the genetic variability

JORGE G. FERNÁNDEZ; MARTÍN A. FERNÁNDEZ BALDO; GABRIELA SANSONE; VIVIANA CALVENTE; DELIA BENUZZI; ELOY SALINAS; JULIO RABA; MARÍA I. SANZ

JOURNAL OF COASTAL LIFE MEDICINE

ELSEVIER (Singapore) Pte Ltd.

Lugar: Haikou; Año: 2014 vol. 2 p. 541 - 546

2309-6152

Objective: Botrytis cinerea is a plant-pathogenic fungus that produces the disease known as grey mould in a wide variety of agriculturally important hosts in many countries. The main objective of the present work was to study the effect of temperature on the morphological characteristics of B. cinerea and its correlated with the genetic variability. Methods: Six strains from different host collected have been isolated and characterized by several methods as mycelial growth, fungicide resistance, pathogenicity and the effects of the temperature. Also was analyzed by PCR and distinguished by the presence or absence of transposable elements. Results: Results showed that clear morphological differences exist between strains at the temperature of 4, 12 and 28°C. All strains analyzed molecularly were classified as Group II (transposa-type). Demonstrating a negative correlation between mycelial growth and other characteristics as the fungicide resistance and pathogenicity. Lastly is difficult to establish relationships phenotypic and genotypic between strains of B. cinerea. Conclusions: The results indicated that the mycelial growth, resistance at fungicide and pathogenicity are independent of the characteristics molecular, however are dependent of a factor such as temperature.