African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 692

Full Length Research Paper

Studies on the prospects and some problems of sand dune vegetation at the fragile coastal zones of West Bengal and Orissa, in Eastern India

Tamal Chakraborty1, Amal Kumar Mondal1* and Sanjukta Mondal Parui2  
1Plant Taxonomy, Biosystematics and Molecular Taxonomy Laboratory, Department of Botany and Forestry, Vidyasagar University, Midnapur- 721102, West Bengal, India. 2Department of Zoology, Lady Brabourne College, P1/2, Suhrawardy Avenue, Kolkata – 700 017 West Bengal, India.  
Email: [email protected]

  •  Accepted: 10 January 2012
  •  Published: 27 January 2012

Abstract

Platostoma africanum P. Beauv. is a tropical plant species valued for its efficacy in traditional medicinal system in West Africa. Although studied for its chemical properties, no cytogenetic study has been reported on this plant species. Axillary buds obtained from the growing plants were used to conduct mitotic study. Results obtained in this study showed that P. africanum is a diploid species with chromosome number, 2n = 10. The mean chromosome length was 3.93 µm and chromosomes ranged from 3.08 to 5.39 µm, with a haploid set length of 19.64 µm. The karyotype showed assymetry with a formula, 1m+1sm+2a+1t and indicated good adaptation and advancement in evolution in this species. This is the first report of the chromosome number in this indigenous medicinal plant species.

 

Key words: Cytology, mitosis, medicinal plants, Lamiaceae.

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