Journal ArticleDOI
Germination of Botrytis cinerea conidia in vitro in relation to nutrient conditions on leaf surfaces
TLDR
It is suggested that, like soil fungi, the germination of spores of phylloplane fungi may be nutrient-dependent, or independent with respect to exogenous nutrients.Abstract:
Conidia of different isolates of Botrytis cinerea Pers. ex Fr. varied widely in ability to germinate in water. Sugars and amino acids were added at concentrations similar to natural levels on leaf surfaces. To a limited extent simple sugars promoted germination. Fructose was most effective whilst sucrose was least effective. Amino acids stimulated germination with the exception of taurine and lysine. Lysine reduced the stimulatory effect of a mixture of amino acids. Germination of conidia was only increased by an inorganic nitrogen source, ammonium salts or by a mixture of mineral salts, when glucose was present. Growth factors, yeast extract, gibberellic acid and kinetin had no effect on germination but indole-acetic acid caused a small stimulation. Abscisic acid depressed germination. It is suggested that, like soil fungi, the germination of spores of phylloplane fungi may be nutrient-dependent, or independent with respect to exogenous nutrients. Poor in vivo germination of B. cinerea may be associated with competition.read more
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Topics in current genetics
TL;DR: Topics in Current Genetics publishes review articles of wide interest in volumes that centre around a specific topic in genetics, genomics as well as cell, molecular and developmental biology.
Journal ArticleDOI
Fungistasis in soils
TL;DR: Fungistasis with characteristics similar to that in soil may also occur on leaves of plants, and is annulled by energy‐yielding nutrients.
Journal ArticleDOI
Different signalling pathways involving a Galpha protein, cAMP and a MAP kinase control germination of Botrytis cinerea conidia.
TL;DR: Microscopical studies of germling growth and differentiation on host cuticles revealed that the delayed infection of the Δbcg3 mutant was due to a surface sensing defect leading to a reduced penetration of germinated conidia.
Journal ArticleDOI
Mechanisms involved in the biological control of Botrytis cinerea incited diseases
TL;DR: Competition for nutrients followed by interference with pathogenicity enzymes of the pathogen or with induced resistance; and alteration of plant surface wettability combined with antibiosis are reported.
Journal ArticleDOI
Variability Associated with Suppression of Gray Mold (Botrytis cinerea) on Geranium by Foliar Applications of Nonaerated and Aerated Compost Teas.
TL;DR: The variability in gray mold suppression from NCT and ACT applications indicates that disease control would not be commercially acceptable unless there are no other alternatives due to production constraints, e.g., organic standards.
References
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Journal ArticleDOI
The Leaching of Substances from Plants
TL;DR: Leaching as used in this review is defined as the removal of substances from plants by the action of aqueous solutions, such as rain, dew, mist, and fog.
Journal ArticleDOI
Physiology of Abscisic Acid and Related Substances
and F T Addicott,J L Lyon +1 more
Journal ArticleDOI
The effect of pollen grains on infections caused by Botrytis cinerea Fr.
Myra Chu Chou,T. F. Preece +1 more
TL;DR: Preliminary work indicates that the effective principle in pollen is water-soluble, dialysable and heat-stable, while glucose and fructose are important components of diffusate, neither glucose solution nor fructose solution nor a mixture of the two showed as marked effects as did pollen.
Journal ArticleDOI
Inhibition of Botrytis cinerea spores by bacteria on the surface of chrysanthemum leaves
J.P. Blakeman,A.K. Fraser +1 more
TL;DR: The results indicate that bacteria sedimenting on to leaves from the air could have an effect on the resistance of chrysanthemum to B. cinerea.
Journal ArticleDOI
Competition for carbon compounds by a leaf surface bacterium and conidia of Botrytis cinerea
I.D.S. Brodie,J.P. Blakeman +1 more
TL;DR: The results indicate that bacteria on leaf surfaces, by utilizing nutrients derived both from conidia and from exogenous sources, would adversely affect germination of conidia.
Related Papers (5)
Competition for carbon compounds by a leaf surface bacterium and conidia of Botrytis cinerea
I.D.S. Brodie,J.P. Blakeman +1 more