I have isolated this from a vine. It seemed to produce VOC's as it inhibited growth of a test pathogen using double petri dish assay.
Dear , Jo Den. Fusarium oxysporum colonies on PDA are white , pale salmon or pale mauve. Reverse is mauve , violet or greyish , they become orange when it produce sporodochia in culture . Macroconidia slightly curved with 3 septa with foot shaped basal cells. Microconidia abundant , not septate , fusiform to kidney shaped , produced in false heads from short stout monophialides . Chlamydospores produced singly or in pairs . According to above parameters , your fungus is not F. oxysporum . You need to prepare more than slides to check the species.
Best regards
Yehya A. Salih
Dear Den,
It seems to be Fusarium oxysporum.
Let the culture be old by waiting few more days. Then, prepare a slide. You wil get clear structure. The conidia in pic are in developing stage.
Kind regard
Dear,
Actually Fusarium oxysporum has white to cream color appearance (as in your pic). Other colors me be related to the some other species of Fusarium.
For more detailes, you may search about the Fusarium oxysporum on internet.
Hi , I thank its Fusarium but not sure oxysporum . you need to prepared aslid to see it ...good luck.
Dear , Jo Den. Fusarium oxysporum colonies on PDA are white , pale salmon or pale mauve. Reverse is mauve , violet or greyish , they become orange when it produce sporodochia in culture . Macroconidia slightly curved with 3 septa with foot shaped basal cells. Microconidia abundant , not septate , fusiform to kidney shaped , produced in false heads from short stout monophialides . Chlamydospores produced singly or in pairs . According to above parameters , your fungus is not F. oxysporum . You need to prepare more than slides to check the species.
Best regards
Yehya A. Salih
Hi , Jo Den.
You also can return to the references : The genus Fusarium by Booth , 1971 ; Introduction to food and airborne fungi by Samson et al. 2000 ; The Fusarium laboratory manual by Leslie and Summerell 2006.
Best regards
Yehya A. Salih
Hello Jo Den,
It may be Fusarium, but on the basis of images presented here it may not oxysporum . what is the colour on cultured plate of the colony from back side.? Did you find any other structure during microscopic observations? Morphological identification of this fungi can be done with extensive study of the organism.
yes Dr. Yehya A. Salih suggested you the correct way for Fusarium identification.
Hello everybody, by looking to the fungal photos presented by Jo Den, the growth behavior, colony and conidial characteristics of this fungus are not referred to Fusarium oxysporum. I suggest to re-examine the fungal sections through the identifications key mentioned by Dr. Yehya
Thank you and good luck
Thank you dear Prof. Houda Kawas for agreement .
With highly appreciation.
Good luck
Dear Jo Den,
I may suggest the use of diffrernt media (by the way, you don't identify, the medium you used for the present cultivation). Any case, the medium you use might be not optimal for the culture, so it may show lower growth rates, lack of all the tyes of sporulation, lack of the typical pigmentation, etc.). Just check it.
Like Dr. Laith Al-Ani I'm not sure it is exactly Fusarium sp., even though it might be.
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