Jnan bikash Bhandari

• Msc phd
• North Bengal University

The Jalpaiguri district of West Bengal lying the foothills of Eastern Himalaya at an elevation of 180-400 m may be considered as a resourceful area for pteridophytes. The present studies were carried out to collect, identify and documentation of ethnomedicinal properties of those pteridophytes. During the study period (2017-2020), seasonal field vi...

This hydroponic study investigated the effects of cadmium (Cd) and cobalt (Co) toxicity on Thelypteris dentata (Synonym. Christella dentata Forssk., Family Thelypteridaceae), a fern species with potential heavy metal accumulation capabilities. Morphological, biochemical, and antioxidative enzyme responses were evaluated at varying concentrations (0...

The present study includes preliminary phytochemical analysis and evaluation of antioxidant activity of Pteris biaurita L. The preliminary phytochemical screening performed with Hot water and Methanolic extracts of fronds with different maturity status. Free radical scavenging activity, DPPH assay and reducing power assay were performed following s...

The present study includes preliminary phytochemical analysis and evaluation of antioxidant activity of Pteris biaurita L. The preliminary phytochemical screening performed with Hot water and Methanolic extracts of fronds with different maturity status. Free radical scavenging activity, DPPH assay and reducing power assay were performed following s...

Plants are important source of medicine. From time immemorial fern and fern allies are used as medicine in different cultural communities. Different plant parts such as leaf or rhizome are used for curing diseases has antimicrobial activity which is experimentally proved from time to time by different Pteridologists. Besides this pteridophytes also...

The morphological characteristics of fern spores collected from Jalpaiguri district, West Bengal, India were examined under scanning electron microscope. As the district belongs to Himalayan foot hill region, represents one of the unique diverse biodiversity region with predictable climate has a rich pteridophytic flora. The size, shape and sporode...

Thelypteris triphylla (Swartz) K. Iwatsuki is reported from the district Jalpaiguri of West Bengal. This species is rarely found and known only from two areas of the district. The detailed description, illustrations of the plant, stomata, scale, spores are provided to enhance the identification process.

Morphological, anatomical and palynological studies on all seven Indian species of Antrophyum Kaulf. and fourteen species of Vittaria J. Sm. out of seventeen Indian members have been made and their taxonomy is discussed. Keys have been provided based on morpho-anatomical characters.

Scanning electron microscope studies on spore morphology and sporoderm features of seven species of Loxogramme (Bl.). Presl are presented. Loxogramme is interesting palynologically; two spore forms, monolete-bilateral and trilete-tetrahedral forms, are found. Trilete-tetrahedral spore form is found in small-sized species, whereas monolete-bilateral...

Fromation of microspore polyads in the Indian member Selaginella intermedia (Bl.) Spring is reported here for the first time. SEM photographs reveal the presence of microspores in tetrads and polyads. Many tetrads are clumped together in ball like or chain like fashion connected by sticky threads. Polyad formation might have some advantageous role...

In India Antrophyum is represented by seven species. Morphological and anatomical description of Antrophyum callifolium Bl. which was collected from Campbell bay, Great Nicobar is furnished here.