Vol. 7, Issue 3 (2019)
Histopathology of Macrophomina phaseolina infested mulberry (Morus spp.) root under varied soil moisture regime
Author(s): Rajeswari P, Angappan K, Sivakumar M and Vijayalakshmi D
Abstract: Macrophomina phaseolina (Tassi.) Goid. Causes charcoal rot disease of mulberry is favoured by warm dry growing conditions and is often severe when under moisture stress. Histopathological changes associated with root samples of mulberry plants inoculated with M. phaseolina at different soil moisture conditions (SMC) @ 20, 30, 40, 50, 75 and 100% were examined microscopically. In the root samples, varying degree of damage on cortex was observed at 20% to 40% SMC, whereas at 50% SMC cortical cells had cavities and at 75% SMC damage was restricted only to upper epidermis. Fewer xylem vessels were slightly damaged at 100% SMC. In the cortical region of mulberry root samples collected from the sick field the accumulation of toxins were seen and the xylem vessels were blocked with mycelia and sclerotia whereas in healthy root sections, the epidermis was completely free from mycelia and the cortex and stelar regions were intact.
Pages: 4044-4048 | 357 Views 102 Downloads
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How to cite this article:
Rajeswari P, Angappan K, Sivakumar M, Vijayalakshmi D. Histopathology of Macrophomina phaseolina infested mulberry (Morus spp.) root under varied soil moisture regime. Int J Chem Stud 2019;7(3):4044-4048.