scholarly journals Selectivity of Fusarium Culture Filtrates in Agar Media

1969 ◽  
Vol 53 (2) ◽  
pp. 140-146
Author(s):  
R. Alconero ◽  
Alma G. Santiago
Keyword(s):  
Fusarium Oxysporum ◽  
Spore Germination ◽  
Linear Growth ◽  
Colony Development ◽  
Selective Isolation ◽  
Potato Dextrose Broth ◽  
Culture Filtrates ◽  
Agar Media

Filtrates of Fusarium oxysporum f. sp. vanillae (Tucker) Gordon, Schlecht. and two isolates of F. solani (Mart.) Appel & Wr., grown in nutrient and potato dextrose broth, effected spore germination, linear growth in agar, and colony development in soil plates of these and other fungi. There was not enough sign of selectivity in these filtrates to warrant their use for selective isolation of fungi from soil.

COMPARISON OF MEDIA FOR THE ISOLATION OF FUSARIUM OXYSPORUM F. SP. LYCOPERSICI FROM SAWDUST USED FOR GROWING TOMATOES

1974 ◽  
Vol 54 (2) ◽  
pp. 373-374
Author(s):  
M. G. ANDERSON ◽  
R. G. ATKINSON
Keyword(s):  
Lycopersicon Esculentum ◽  
Fusarium Oxysporum ◽  
Rose Bengal ◽  
Antimicrobial Agents ◽  
Potato Dextrose Agar ◽  
Selective Isolation ◽  
Streptomycin Sulphate ◽  
Lycopersicon Esculentum Mill ◽  
Agar Media ◽  
Greenhouse Tomatoes

Various agar media amended with antimicrobial agents were compared for the selective isolation of Fusarium oxysporum f.sp. lycopersici from sawdust used for growing greenhouse tomatoes (Lycopersicon esculentum Mill.). Potato dextrose agar amended with pentachloronitrobenzene (PCNB) (500 mg/l) and streptomycin sulphate (300 mg/l proved to be the most satisfactory medium, tested. These antimicrobial agents, unlike rose bengal, did not reduce the number of Fusarium colonies isolated.

EFFECT OF DIFFERENT MEDIA, TEMPERATURE AND HYDROGEN-ION ON THE GROWTH AND SPORULATION OF FUSARIUM OXYSPORUM F. SP. CICERI CAUSING CHICKPEA

2017 ◽  
Vol 23 (1) ◽  
Author(s):  
B.D. S. NATHAWAT ◽  
O.P. SHARMA ◽  
VIRENDRA KUMAR
Keyword(s):  
Fusarium Oxysporum ◽  
Agricultural Research ◽  
Hydrogen Ion ◽  
Liquid Media ◽  
Agricultural Research Institute ◽  
Potato Dextrose Broth ◽  
Ion Concentrations ◽  
Agar Media ◽  
Ph Level

An experiment was conducted at division of Plant Pathology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur (S.K.N.A.U, Jobner). In vitro studies were conducted to know the effect of different solid and liquid media, temperature and hydrogen-ion concentrations on sporulation and growth of Fusarium oxysporum f.sp. ciceri. The fungus grew the best on Potato Dextrose Agar media (90.00 mm) after 7 days of incubation at 25 ± 1ºC and significantly superior in comparison to other media tested. Among the different liquid media tested, maximum dry mycelium weight was recorded in Potato Dextrose Broth (472.75 mg) superior to all other liquid media tested. The most suitable pH level and temperature for growth of fungus was 6.0 (90.00 mm) and growth of F. oxysporum was maximum at 300C.

The effect of surface sterilants on spore germination of Fusarium oxysporum f. sp. cubense tropical race 4

2013 ◽  
Vol 54 ◽  
pp. 194-198 ◽  
Author(s):  
R.A. Meldrum ◽  
A.M. Daly ◽  
L.T.T. Tran-Nguyen ◽  
E.A.B. Aitken
Keyword(s):  
Fusarium Oxysporum ◽  
Spore Germination ◽  
Race 4 ◽  
Effect Of Surface

scholarly journals Evaluation of Biomass and Chitin Production of Morchella Mushrooms Grown on Starch-Based Substrates

Foods ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 239 ◽  
Author(s):  
Aikaterini Papadaki ◽  
Panagiota Diamantopoulou ◽  
Seraphim Papanikolaou ◽  
Antonios Philippoussis
Keyword(s):  
Growth Rate ◽  
Linear Growth ◽  
Biomass Yield ◽  
Linear Growth Rate ◽  
Waste Streams ◽  
Mycelium Growth ◽  
Potato Dextrose Broth ◽  
Polysaccharide Content ◽  
Potato Peels ◽  
Mycelium Growth Rate

Morchella sp. is one of the most expensive mushrooms with a high nutritional profile. In this study, the polysaccharide content of Morchella species was investigated. Specifically, mycelium growth rate, biomass production, sclerotia formation, and glucosamine and total polysaccharides content of six Morchella species grown on a starch-based media were evaluated. Submerged fermentations in potato dextrose broth resulted in a glucosamine content of around 3.0%. In solid-state fermentations (SSF), using potato dextrose agar, a high linear growth rate (20.6 mm/day) was determined. Increased glucosamine and total polysaccharides content were observed after the formation of sclerotia. Biomass and glucosamine content were correlated, and the equations were used for the indirect estimation of biomass in SSF with agro-industrial starch-based materials. Wheat grains (WG), potato peels (PP), and a mixture of 1:1 of them (WG–PP) were evaluated as substrates. Results showed that the highest growth rate of 9.05 mm/day was determined on WG and the maximum biomass yield (407 mg/g) on WG–PP. The total polysaccharide content reached up to 18.4% of dried biomass in WG–PP. The results of the present study proved encouraging for the efficient bioconversion of potato and other starch-based agro-industrial waste streams to morel biomass and sclerotia eliciting nutritional and bioactive value.

Effect of inorganic ions on bud cell formation by Fusarium oxysporum in potato dextrose broth

2010 ◽  
Vol 76 (5) ◽  
pp. 331-335 ◽  
Author(s):  
Kenji Yokota ◽  
Takuma Teraoka ◽  
Hirofumi Suzuki ◽  
Keiichi Murakami ◽  
Eitaro Miwa ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Cell Formation ◽  
Inorganic Ions ◽  
Potato Dextrose Broth

Effect of Fusarium oxysporum f. sp. apii on seed germination in celery (Apium graveolens)

1982 ◽  
Vol 60 (1) ◽  
pp. 34-39
Author(s):  
T. J. Orton
Keyword(s):  
Seed Germination ◽  
Fusarium Oxysporum ◽  
Plant Disease ◽  
Apium Graveolens ◽  
Potato Dextrose Broth ◽  
Disease Response ◽  
Whole Plant ◽  
Celery Seed ◽  
Dependent Inhibition ◽  
Whole Plants

The effects of Fusarium oxysporum f. sp. apii on celery seed germination were investigated with the hope of developing a germ-plasm screening procedure with seeds. Seeds of celery lines known to exhibit a range of disease responses to the pathogen as whole plants were inoculated with two different virulence types and in two ways: (1) spore–mycelial suspensions in potato dextrose broth (PDB), and (2) spore–mycelial suspensions in sterile H2O. Inoculum in PDB retarded germination in all celery lines and the relative degree of this retardation was congruent with virulence of the pathogen and, in general, relative retardation of germination was also in agreement with whole-plant disease response. Inoculum in H2O stimulated germination and the degree of stimulation also appeared related to degree of whole-plant disease response. Extracts from disease lesions incited by F. oxysporum f. sp. apii on celery exerted a dose-dependent inhibition of germination but filtrates from 14-day-old cultures in PDB had no significant effect.

Effect of Buffers on the Pectolytic Activity of Culture Filtrates of Fusarium oxysporum

Nature ◽  
1964 ◽  
Vol 202 (4930) ◽  
pp. 414-415 ◽  
Author(s):  
J. A. MEYER ◽  
E. D. GARBER ◽  
SUSAN G. SHAEFFER
Keyword(s):  
Fusarium Oxysporum ◽  
Culture Filtrates ◽  
Pectolytic Activity

Antifungal activity of ajoene, a constituent of garlic (Allium sativum)

1990 ◽  
Vol 68 (6) ◽  
pp. 1354-1356 ◽  
Author(s):  
U. P. Singh ◽  
V. N. Pandey ◽  
K. G. Wagner ◽  
K. P. Singh
Keyword(s):  
Antifungal Activity ◽  
Fusarium Oxysporum ◽  
Spore Germination ◽  
Allium Sativum ◽  
Alternaria Solani ◽  
Field Conditions ◽  
Fusarium Udum ◽  
Alternaria Tenuissima ◽  
Fusarium Semitectum ◽  
Alternaria Sp

Ajoene, a compound derived from garlic (Allium sativum L.), inhibited spore germination of some fungi, namely, Alternaria solani, Alternaria tenuissima, Alternaria triticina, Alternaria sp., Colletotrichum sp., Curvularia sp., Fusarium lini, Fusarium oxysporum, Fusarium semitectum, and Fusarium udum, which cause serious diseases in some important crop plants in India. The compound was very effective in checking spore germination at a concentration of 25 μg/mL in some of the above fungi and, in most cases, there was 100% inhibition of germination at 100 μg/mL. It is quite likely that the compound may be useful in controlling disease(s) under field conditions.

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