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Jan-June, 2023

Rajiv Gandhi University

Center with Potential for Excellence in Biodiversity

Half yearly Journal published in January and June 2023

Editorial Board

Prof. Hui Tag




Article Content

VOLUME 10 (1): JANUARY – JUNE 2023


Review Article

Role of Areca catechu L. on reproductive physiology in Mice: a review

Nati Taba1, Madhu Yashpal2, Pankaj Kumar1*

1Department of Zoology, Rajiv Gandhi University, Rono Hills, Doimukh, Itanagar-791112, Arunachal Pradesh, India

2Department of Zoology, Gargi College, University of Delhi, Siri Fort Road, New Delhi-110049, India

Article No.: NTAJBR35; Received: 20.08.2022; Reviewed: 08.02.2023; Revised: 09.03.2023; Accepted: 30.04.2023; Published: 30.06.2023


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Abstract: The Areca catechu palm tree, a medium-sized Arecaceae species, produces commercially valuable areca nut. Indians chew areca nuts for freshening their mouth breath. Chewing betel nuts has been a South Asia-Pacific practice for thousands of years. Meghalaya's Khasi tribe relies on kwai (areca nut) as a part of their hospitality and culture. It is decorated during Assam's Bihu festival and handed to notable people during felicitations. The Manipur’s Meitei community require betel nuts for all religious rites, including birth, marriage, and death. Birth guests get kwa or betel nuts as a token of appreciation. It follows the main course at feasts. Kwa aids digestion. After a good dinner, Nagaland's Ao tribe consumes betel nuts. Every Mizoram paan shop sells kuhvahring (green areca nut), which visitors and guests are often requested to try. Arunachal Pradesh, Sikkim, and Tripura chew areca nuts for refreshment. Numerous research has examined Areca catechu's dental health risks. This habit can harm reproductive as well as dental health. In the present review, an attempt has been made to summarise the ethnomedicinal, ayurvedic, and pharmacological opinions of Areca catechu L. kernel on reproductive physiology since there are few reviews on the detrimental effects of areca nuts on mice. Areca nuts affect the endocrine system, causing hypothyroidism, prostate hypertrophy, and infertility. The areca nut suppresses fertility, regulates the menstrual cycle, removes dysmenorrhea, prostate enlargement, menopausal symptoms, breast pain, delivery pain, and mild euphoria. During pregnancy, it causes premature birth and low birth weight. Thus, the A. catechu seed must be rigorously managed for the good of civilization because it is a hazardous and addictive substance that harms both male and female reproductive systems.

Keywords: Areca catechu; Betel Nut; Reproductive Physiology; Infertility; Fertility; Pregnancy

Research Article

DNA barcoding and molecular phylogenetics of Anguilliform fishes of Assam, India

Shamim Rahman1,*, Amit Kumar2, Amalesh Dutta3, Mohan C. Kalita4

1Department of Zoology, D. C. B. Girls’ College, Jorhat-785001, Assam, India.

2Centre for Climate Change Studies, Sathyabama Institute of Science and Technology, Chennai-600119, Tamil Nadu, India.

3Department of Zoology, Gauhati University, Guwahati-781014, Assam, India.

4Department of Biotechnology, Gauhati University, Guwahati-781014, Assam, India.

Corresponding email ID:

Article No.: SRJBR06; Received: 20.04.2023; Reviewed: 10.05.2023; Revised: 20.05.2023; Accepted: 12.06.2023; Published: 30.06.2023


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Abstract: Fishes have rarely been seen through the angle of conservation needs as compared to large strata mammals. Assam is a part of one of the biodiversity hotspots and as it happens to any other species, fishes are also declining from this region, even before their scientific exploration. DNA barcoding has been proven to be a comparatively quicker, but authentic tool for species identification. In current study, DNA barcodes for Anguilliform fishes of Assam have been developed utilizing the partial mitochondrial Cytochrome Oxidase I (COI) gene. The 36 barcodes generated in present study has demonstrated the delineation of 15 morphologically identified species representing monophyletic clusters. Mean intra-specific divergence levels for most of the species were found to be less than 1%, except Mastacembelus armatus which exceeded 2%, which has traditionally been considered a threshold for species determination. Excluding M. armatus, the maximum conspecific distance and minimum congeneric distance were found at 1.97% and 8.78%, respectively, thus establishing 4.46 fold barcode gap for species-level discrimination. Comparative analysis with secondary data indicates data voids of Pillaia indica and probable misidentification of Anguilla spp. and Botia spp. in public databases; thus it demands deposition of more DNA barcodes and review of morphotaxonomy. Besides the inherent benefit of barcoding in tagging species, it also provides baseline information on the molecular characterization to decipher indications on the phylogenetic significance of lesser studied fishes of Assam. The novelty of this study lies in the de novo development of certain DNA barcodes from this region making this study significant for conservationists and field biologists as a whole.

Keywords: Eel, Ichthyos, mtCOI, Taxonomy, Conservation

Research Article

Quantitative assessment of ethnobotanical resources and medicinal plants utilization patterns in Tripura, India

Muktadhar Reang, Biplab Banik, Silvia Debbarma, Badal Kumar Datta

Department of Botany, Tripura University, Suryamaninagar 799022, Tripura, India.

*†Corresponding author email:

Article No: MRJBR10; Received: 8.04.2023; Revised: 15.05.2023; Accepted: 28.05.2023; Published on 31.06.2023


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Abstract: The North Eastern Region of India is an essential component of the Indo-Myanmar biodiversity hotspot and ranks as one of the world's 25th most biodiverse regions. This region hosts more than one-third of India's total biodiversity. Ethnomedicinal plants are essential in meeting the primary healthcare needs of global population in their rural regions. In the present findings, 91 plant species belonging to 53 families and 87 genera used by the ethnic people in the state of Tripura, India have been documented. A total of 25 key informants (traditional healers) comprising both men and women were interviewed. Chi-square test show significant relationship exists between their age and ethnobotanical knowledge (χ² = 18.824, df = 10, P = 0.043). A quantitative ethnobotany helps us identify the utility of significant species used by the ethnic communities for the treatment of some common ailments that traditional medicine practitioners claim. Analysis of ethnobotanical indices such as UR, UV, CI, FC, RFC, and FL (%) can be used as a quantitative tool to assess the cultural importance of plants, prioritize species for further study or for conservation priority, and provide insights into local ecological knowledge and traditional resource management practices. This approach recognizes the importance of traditional knowledge and fosters a sense of community ownership over conservation efforts. Further formulations and research on each species can direct the discovery of new medicinal products with significant potential for the future.

Keywords: Quantitative Ethnobotany; Ethnic Community; Tripura; Medicinal Plants; Ethnobotanical Indices; Traditional Knowledge; Biological Diversity

Research Article

An in-vitro study on antibacterial potential of few medicinal plants of Assam against Multidrug-Resistant Bacterial Isolates

Indrani Gogoi, Shyamalima Saikia, Minakshi Puzari, Pankaj Chetia*

Department of Life Sciences, Dibrugarh University, Dibrugarh-786004, Assam, India.

*Corresponding Author email:

#Equally contributed first authors

Article No.: IGJBR34; Received: 07.05.2023; Revised: 01.06.2023; Accepted: 15.06.2023; Published: 30.06.2023


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Abstract: Since time immemorial, plants have been used as medicine to cure various ailments. Plants contain different bioactive compounds which make them potential alternate as antimicrobial agents. The excessive use or misuse of antibiotics has been developing resistance in bacteria to almost all the available antibiotics and resulting in serious health issues throughout the world. The exploration of plant-based therapeutic strategies could be a great choice to mitigate emerging health issues. The present study aimed to screen the antibacterial properties of five locally available medicinal plants of Assam, Garcinia pedunculata Roxb. ex Buch.-Ham, Garcinia lanceifolia Roxb., Garcinia morella (Gaertn.) Desr., Capsicum chinense Jacq. and Flacourtia jangomas (Lour.) Raeusch. against multidrug-resistant bacteria. The plant extracts were prepared using solvents- petroleum ether, ethyl acetate, and methanol. The Kirby-Bauer disk diffusion method was performed for testing the antibiotic susceptibility of bacterial isolates. For screening the in vitro antibacterial activity of the plant extracts, the agar well diffusion method was carried out along with the determination of the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) respectively. In in vitro antibacterial screening, the ethyl acetate and methanol extracts of G. lanceifolia Roxb. showed the highest zone of inhibition followed by ethyl acetate extracts of G. pedunculata Roxb. ex Buch.-Ham. However, among all the selected plants G. lanceifolia Roxb. displayed the highest bactericidal effect (at 50 mg/mL concentration) against bacterial pathogens with MIC of 0.39 mg/mL. The result indicated that G. lanceifolia Roxb. could be a potent inhibitor of multidrug-resistant bacteria.

Keywords: Antibiotics; Antibiotic Susceptibility; Gram-negative Bacteria; Minimum Inhibitory Concentration; Minimum Bactericidal Concentration; Plant Extract.

Research Article

Feeding ecology of Large Whistling Teal Dendrocygna bicolor (Vieillot, 1816) in Deepor Beel wetlands, Assam, India

Jyotismita Das1, Shatabdi Biswas1, Abhijit Chandra Roy1, Anjela Ahmed1*, Prasanta Kumar Saikia2

1Department of Zoology, Nowgong College (Autonomous), Nagaon-782001, Assam, India.

2Department of Zoology, Gauhati University, Jalukbari, Guwahati- 781014, Assam, India

*Corresponding author email: (Anjela Ahmed)

Article No.: Article No.: SBJBR26; Received: 19.01.2022; Revised: 16.06.2023; Accepted 20.06.2023; Published on 30.06.2023


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Abstract: The study focuses on the Large Whistling Teal's feeding ecology. The current work is significant for the study of feeding ecology since it focuses on the examination of various food sources and the feeding preferences of the large whistling teal at the only Ramsar site in Assam, the Deepor Beel wetlands. The varieties of meals were investigated using a non-destructive stomach-flushing technique. Before analysis, all samples were preserved in 5% buffered formalin. Utilizing a reference specimen, the samples were sorted and identified under the microscope. Results were displayed in terms of how frequently different meal items appeared. The examination of the Large Whistling Teal's favourite foods revealed that Euryale ferox was the bird's top choice both during the breeding season (26.3%) and non-breeding season (25%) compared to other foods. However, the Large Whistling Teal had chosen Cynodon dactylon least among others as food during the mating season. In the Deepor Beel Wetlands, the occurrence of various food types varied significantly. Additionally, this study demonstrated that the Large Whistling Teal employs distinct activity patterns to make use of the Deepor Beel's valuable resources.

Keywords: Deepor Beel; Breeding; Ramsar Site; Bird; Conservation; Habitat; Feeding Ecology

Short Communication

Ethnobotanically significant plants used by the Nyishi tribe of Papum Pare District in Arunachal Pradesh

Taba Yehi1, Pallabi Kalita Hui2, Hui Tag1*

1Plant Systematics and Ethnobotanical Research Laboratory, Department of Botany, Rajiv Gandhi University, Rono Hills, Doimukh-791112, Arunachal Pradesh, India.

2Department of Biotechnology, National Institute of Technology Arunachal Pradesh, Jote-791123, Papum Pare, Arunachal Pradesh, India.


Article N0.: TYJBR56; Received: 04.10.2023; Revised: 10.11.2023; Accepted: 18.12.2023; Published: 31.12.2023


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Abstract: An ethno-botanical study was conducted in the Papum Pare district of Arunachal Pradesh covering 13 far-flung villages. The structured, semi-structured questionnaire format, focused group discussion, open-ended interview and transect walk methods were used for gathering ethnobotanical information from 97 key informants. This study revealed 40 ethnobotanical species belonging to 27 plant families used by the Nyishi tribe of Papum Pare district as a food, housing, medicine, spice and condiments and cultural materials.

Keywords: Ethnobotanical Uses; Wild Edible Plants; Nyishi Tribe; Papum Pare; Arunachal Pradesh

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