14th Oct, 2017
University of Basrah
Question
Asked 9th Oct, 2017
Plant pathogen's inoculum concentration could be inverse correlated with plant disease symptoms?
I need information about this phenomenon on breeding crops of any disease. Please any job or publication you could share with me would be very useful.
Thank you so much.
Most recent answer
Hello dear , Laura Martinez
I am in full agreement with Prof. Mohammed valuable response , some times the plant pathogen's inoculum concentration has inverse correlated with plant disease symptoms such as rust fungi.
Best greetings
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All Answers (6)
Hi , Form my understanding of your question, you ask about the inoculum concentration what is the ideal one.
That is depended in what pathogen you want to work with. If you interested in a particular diseases i can send you a protocoles for it.
Thanks
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Hi Oadi,
Thank you fr your answer. I actually work with certain pathogen which has shown the following ratio:
the lower inoculum concentration the highest plant disease symptoms. And I want to explain this results. I'd like to learn more about this phenomenon in other species of plant pathogens.
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Hi Laura
in some pathogen like rust fungi some times the highest inoculum concentration give lower disease symptoms. this due to self inhibition phenomenon.
Best regard
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Dear Laura,
In my understanding, the correlation between inoculum concentration and disease symptoms might occur. However, such correlation cannot be modeled because this pattern is occasional considering the following: (i) occurrence and severity of symptoms depend on many other factors, not only the concentration of inoculum; (ii) varying the concentration, you may found variations in symptoms in association with the inhibition effect; and (iii) this variation may also occur differently for different plant pathogens in the same experimental conditions.
Kind regards
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