The effect of temperature and relative humidity on conidial germination of Botrytis cinerea.

2002 ◽  
Vol 29 (2) ◽  
pp. 66-72 ◽  
Author(s):  
B. Latorre ◽  
◽  
M. Rioja
Keyword(s):  
Relative Humidity ◽  
Botrytis Cinerea ◽  
Conidial Germination ◽  
Effect Of Temperature

scholarly journals Effect of temperature, relative humidity and light on conidial germination of oak powdery mildew (Microsphaera alphitoides Griff. et Maubl.) under controlled conditions

2013 ◽  
Vol 65 (3) ◽  
pp. 1069-1077 ◽  
Author(s):  
P. Pap ◽  
B. Rankovic ◽  
S. Masirevic
Keyword(s):  
Relative Humidity ◽  
Powdery Mildew ◽  
Germ Tube ◽  
Inhibitory Effect ◽  
Conidial Germination ◽  
Effect Of Temperature ◽  
Tube Length ◽  
Controlled Conditions ◽  
Germ Tube Length ◽  
Germ Tubes

The influence of temperature, humidity and light on the conidial germination and germ tube elongation of oak powdery mildew (Microsphaera alphitoides Griff. et Maubl.) was studied in controlled conditions. The maximal germ tube length was attained at 25?C, whereas at lower and higher than optimal temperatures, germ tube growth was significantly lower. Germ tubes begin to develop at all values of relative humidity (10-100%), reaching the maximum length at 90%. The development of germ tubes was the most intense in full light and the lowest in total darkness. The artificial infection of floating leaves showed that an increasing age had an inhibitory effect on the mycelium development and spore formation. Since conidia play a crucial role in powdery mildew epidemiology, it is of particular importance to elucidate the influence of environmental factors in the complex relations that exist between the plant and its pathogen.

scholarly journals Silencing of DND1 in potato and tomato impedes conidial germination, attachment and hyphal growth of Botrytis cinerea

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Kaile Sun ◽  
Ageeth van Tuinen ◽  
Jan A. L. van Kan ◽  
Anne-Marie A. Wolters ◽  
Evert Jacobsen ◽  
...  
Keyword(s):  
Botrytis Cinerea ◽  
Hyphal Growth ◽  
Conidial Germination

scholarly journals Effect of temperature and relative humidity in refrigerator on quality traits and storage characteristics of Pre-packed Hanwoo loin

2014 ◽  
Vol 41 (4) ◽  
pp. 415-424 ◽  
Author(s):  
Kuk-Hwan Seol ◽  
Ki Hyun Kim ◽  
Young Hwa Kim ◽  
Kyung Eun Youm ◽  
Mooha Lee
Keyword(s):  
Relative Humidity ◽  
Effect Of Temperature ◽  
Quality Traits ◽  
And Storage ◽  
Storage Characteristics

scholarly journals Effect of temperature and relative humidity on the stability of infectious porcine reproductive and respiratory syndrome virus in aerosols

2007 ◽  
Vol 38 (1) ◽  
pp. 81-93 ◽  
Author(s):  
Joseph Hermann ◽  
Steve Hoff ◽  
Claudia Muñoz-Zanzi ◽  
Kyoung-Jin Yoon ◽  
Michael Roof ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Effect Of Temperature ◽  
Respiratory Syndrome Virus ◽  
The Stability

scholarly journals Saprophytic microorganisms with potential for biological control of Botrytis cinerea on Geraldton waxflower flowers

2001 ◽  
Vol 41 (5) ◽  
pp. 697 ◽  
Author(s):  
D. R. Beasley ◽  
D. C. Joyce ◽  
L. M. Coates ◽  
A. H. Wearing
Keyword(s):  
Botrytis Cinerea ◽  
Mycelial Growth ◽  
Germ Tube ◽  
Conidial Germination ◽  
Pseudomonas Sp ◽  
Trichoderma Spp ◽  
Fusarium Sp ◽  
Flower Abscission ◽  
Germ Tube Elongation

Saprophytic bacteria, yeasts and filamentous fungi were isolated from Geraldton waxflower flowers and screened to identify potential antagonism towards Botrytis cinerea. Isolates from other sources (e.g. avocado) were also tested. Isolates were initially screened in vitro for inhibition of B. cinerea conidial germination, germ tube elongation and mycelial growth. The most antagonistic bacteria, yeasts and fungi were selected for further testing on detached waxflower flowers. Conidia of the pathogen were mixed with conidia or cells of the selected antagonists, co-inoculated onto waxflower flowers, and the flowers were sealed in glass jars and incubated at 20˚C. The number of days required for the pathogen to cause flower abscission was determined. The most antagonistic bacterial isolate, Pseudomonas sp. 677, significantly reduced conidial germination and retarded germ tube elongation of B. cinerea. None of the yeast or fungal isolates tested was found to significantly reduce conidial germination or retard germ tube elongation, but several significantly inhibited growth of B. cinerea. Fusarium sp., Epicoccum sp. and Trichoderma spp. were the most antagonistic of these isolates. Of the isolates tested on waxflower, Pseudomonas sp. 677 was highly antagonistic towards B. cinerea and delayed waxflower abscission by about 3 days. Trichoderma harzianum also significantly delayed flower abscission. However, as with most of the fungal antagonists used, inoculation of waxflower flowers with this isolate resulted in unsightly mycelial growth.

Sign in / Sign up

Export Citation Format

Share Document