Several barley grain samples indicated association of Alternaria triticinia in Iraq . Can such fungus species pathogenic at the field ?
Alternaria triticina is the causal agent of Alternaria leaf blight of wheat, initially described from India.....barley and other cereals ( Simmons, 2007 ), but not a significant pathogen ( Wiese, 1987... Alternaria triticina occurs on Triticum spp., triticate and barley while innoculation has failed to show its .. For more details consult https://nt.ars-grin.gov --taxadescriptions
krishikosh.egranth.ac.in
Thank you Sir; It is hard to explan the fungus A. triticinia causal of leaf blight on wheat and barley and it is not pathogenic. How can that be explain, could be there is an predespose factor ( biological and / physical one). Lorenzo Moncini Sylvester Peter Antai
@ Professor Ayad Abdulwahid Alheeti
The answer is 'yes'. Please have a look the following link.
https://www.cabi.org/isc/FullTextPDF/2015/20153421703.pdf
Thanks!
There is quite a lot of confusion concernant the identification of the Alternaria isolates from lesions on cereals. Several saprophytic species colonize the tissues affected by other factors. In our experience on wheat, A. triticina is not easily differentiated from the other species based on morphological characteristics.
Thus first make sure you have isolated A. triticina. For inoculation of barley I would suggest to use the method we have used on wheat. See Mercado et al. 2006
Yes very helpful answer by Dr. Maraite. The reference Mercado et al.2006 is also very helpful. The DNA barcoding coupled with inoculation and morphology helps to separate pathogenic Alternaria triticina from others
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