Differential spore production by <em>Botrytis cinerea</em> on agar medium and plant tissue under near-ultraviolet light-absorbing polyethylene film - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Plant Disease Année : 1996

Differential spore production by Botrytis cinerea on agar medium and plant tissue under near-ultraviolet light-absorbing polyethylene film

Résumé

Plastic films containing additives that alter their transmission of the light spectrum may be useful tools for the control of aerial plant pathogens of greenhouse crops. Several samples of polyethylene films containing additives that absorb near ultraviolet (nUV) light in the range 280 to 380 nm were compared for their ability to affect spore germination, mycelial growth, and sporulation of Botrytis cinerea on agar medium. One film was selected and further evaluated. The kinetics of spore production by the pathogen was similar on agar medium and on tomato stem tissue, and whether incubation took place under the nUV-absorbing film or under a control film. However, spore production on both types of substrates under the nUV film remained at less than 0.05% that of the control for several weeks after inoculation, demonstrating that the nUV film inhibited rather than delayed sporulation. A sharp reduction of spore production was also observed on other plant tissues. However, the efficiency of the nUV film appeared different for different plants, and it was lower on flowers and cotyledons than on stem tissue. Two of the five strains of B. cinerea tested on tomato stem tissue were less sensitive to sporulation inhibition by the nUV film. To clarify the potential of nUV films for the control of gray mold on greenhouse crops, the epidemiological significance of these results needs lo be further examined in light of the abundance of such strains in the environment.
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Dates et versions

hal-02697845 , version 1 (01-06-2020)

Identifiants

Citer

Philippe C. Nicot, Marie Mermier, Bernard E. Vaissiere, Jacques Lagier. Differential spore production by Botrytis cinerea on agar medium and plant tissue under near-ultraviolet light-absorbing polyethylene film. Plant Disease, 1996, 80 (5), pp.555-558. ⟨10.1094/PD-80-0555⟩. ⟨hal-02697845⟩
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