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Nuclear structure and behaviour in the vegetative hyphae of Pythium aphanidermatum

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Abstract

Nuclear divisions taking place in the hyphae ofPythium aphanidermatum have been described. Typical prophase type of nuclei with elongate chromatin fibres have been observed. Achromatic structures resembling spindle fibres with well defined poles during anaphase configuration have been noticed. A mild pretreatment with acenaphthene vapours proved instrumental in arresting the progress of nuclear division. Stages similar to early and late anaphase and telophase with deeply staining chromosomal masses have been observed. A high concentration of acenaphthene treatment resulted in the formation of giant nuclei.

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Authors and Affiliations

  1. Division of Mycology and Plant Pathology, Indian Agricultural Research Institute, New Delhi-12

    K. Seshadri & M. M. Payak

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  1. K. Seshadri
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  2. M. M. Payak
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This work is based on a thesis submitted byK. Seshadri in partial fulfilment of the requirements for the M. Sc. degree of the Indian Agricultural Research Institute, New Delhi. His present address is: University Botany Laboratory, Chepauk, Madras-5, India.

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Seshadri, K., Payak, M.M. Nuclear structure and behaviour in the vegetative hyphae of Pythium aphanidermatum. Mycopathologia et Mycologia Applicata 40, 145–153 (1970). https://doi.org/10.1007/BF02051992

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