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Sharma Nisha,Singh Bikram,Bhatia Aruna,Gupta Raghbir Chand,Wani Mohammad Saleem 경희대학교 융합한의과학연구소 2021 Oriental Pharmacy and Experimental Medicine Vol.21 No.4
Boerhavia diffusa is an herbaceous plant of the family Nyctaginaceae. It is mentioned to have anti-aging, disease prevention, and life-enhancing activities that hold enormous influence on disease burden and affordability/availability of healthcare in the world. In the present study, various populations of this plant species were characterized using morphological markers, cytogenetic and phytochemical analyses. Besides, biological activity was also studied for anti-diabetic and anti-bacterial effects using rats and bacterial systems respectively. For the three cytotypes i.e. diploid, tetraploid and octaploid, twelve morphological traits were studied. HPLC system was used for the identification of bioactive compounds present in extracts. The in vivo anti-hyperglycemic effects of the extract in alloxan- induced diabetes were determined using Swiss albino rats. Rats with fasting plasma glucose vary ≥ 300–315 mg/dl were treated to be diabetic and utilized for the examination. Anti-bacterial activities of three cytotypes of B. diffusa were screened by using the Disc diffusion method against two strains of Gram-positive bacteria and three strains of Gram-negative bacteria. The present study reports the existence of diploid, tetraploid and octaploid cytotypes which was new report from India. The diploid cytotype of B. diffusa showed maximum activity against diabetes in alloxan-induced diabetic rats and more anti-bacterial activity in Gram-positive and Gram-negative bacteria as compared to tetraploid and octaploid cytotypes. HPLC results showed that the concentration of phytoconstituents showed a negative correlation with the ploidy level being maximum in plants with lower ploidy levels. The present paper represents the first report of the pharmacognostic study based on different plant parts and cytotypes in B. diffusa. Results of the present study will be useful for exploiting appropriate cytotypes for various purposes such as formulating new anti-diabetic and anti-bacterial drugs from B. diffusa.
Younas Rasheed Tantray,Ishrat Jan,Mohammad Saleem Wani,Vijay Kumar Singhal,Raghbir Chand Gupta 국립중앙과학관 2021 Journal of Asia-Pacific Biodiversity Vol.14 No.4
Disparity or continuity in the chromosome count within taxa of various categories has been verified to bean imperative character for taxonomic classification. Male meiotic studies in 64 species (161 accessions)of composits from geographically isolated regions were examined in detail in order to update the existingknowledge of meiotic chromosome numbers of composits from the outer part of the Himalayas. Myriactisjavanica (2n ¼ 36) and Tanacetum nubigenum (2n ¼ 36) have been counted chromosomally for the firsttime at the world level. Besides, Koelpinia linearis (2n ¼ 36), Ajania fruticulosa (2n ¼ 18), Crepis flexuosa(2n ¼ 14), and Tanacetum gracile (2n ¼ 18) have been analyzed chromosomally for the first time fromIndia. New intraspecific diploid/polyploid cytotypes are added for Artemisia desertorum (2n ¼ 6x ¼ 54),Carduus nutans (2n ¼ 4x ¼ 16), Erigeron annuus (2n ¼ 2x ¼ 18), Leontopodium jacotianum (2n ¼ 4x ¼ 48),Pentanema indicum (2n ¼ 6x ¼ 54), Scorzonera virgata (2n ¼ 2x ¼ 16), and Tragopogon pratensis(2n ¼ 2x ¼ 12). Besides, eight species have been evaluated cytologically for the first time from KashmirHimalayas. Various meiotic abnormalities like cytomixis, structural heterozygosity, chromatin stickiness,nonsynchronous disjunction, laggards, bridges, unoriented chromosomes leading to pollen sterility havebeen observed for the first time in some species. The presence of B-chromosomes has been detected inAchillea millefolium (2n ¼ 18þ0-1B) and Saussurea candolleana (2n ¼ 26þ0-1B). Among meioticallyanalyzed species, diploids (76.5%) and polyploids (23.5%) prevail.