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27 results on '"Chaliha, Chayanika"'

5. Contributors

Author

Abdul Azeez, M.S., primary, Ameta, Rakesh Kumar, additional, Ananthasubramanian, Muthusamy, additional, Aruna, Varimadugu, additional, Ayshwarya, G., additional, Baruah, Julie, additional, Behere, Supriya S., additional, C.V.S., Aishwarya, additional, Chaliha, Chayanika, additional, Chandra, Abhishek, additional, Chandrajith, A.V., additional, Chidambaram, Siva, additional, Columbus, Soumya, additional, Daoudi, Kais, additional, Dharani, R., additional, Dhulipalla, Bhanu Shankar, additional, Faiyazuddin, Md., additional, Gaidi, Mounir, additional, Ganesh, V., additional, Gowri, S., additional, Hammouche, Jannat, additional, Jayapalan, Anitha, additional, Jyothsna, S., additional, Kalita, Eeshan, additional, Kamarajan, Banu Pradheepa, additional, Karthikeyan, C., additional, Lavanya, T., additional, Mehetre, Shantilal S., additional, Mehetre, Atish R., additional, Mokkapati, Vaishnavi, additional, Mundru, Krushe, additional, Muthukumarasamy, Arulmozhi, additional, Naresh, Koppula, additional, Natarajamoorthy, Mathan, additional, Nithyas, S., additional, Pal, Shweta Kailash, additional, Pichumani, Moorthi, additional, Prabhu, Deepa B., additional, Praveen, G.L., additional, Raam Dheep, G., additional, Rajakarthihan, S., additional, Ramachandran, Krithikadevi, additional, Ramakrishnan, S., additional, Ravi Shankar, K., additional, Seifunnisha, O., additional, Shameer, Mohammed, additional, Shanthi, J., additional, Sharmila, S., additional, Sorathur Duraisamy, Premkumar, additional, Subhashini, Swaminathan, additional, Swathi, R., additional, Thangaraju, Elakkiya, additional, Thangaraju, Kuppusamy, additional, Umadevi, S., additional, Varathan, Riteshsaravanaraj, additional, and Vibha, C., additional

Published
2023
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22. Plant growth-promoting traits of culturable seed microbiome of citrus species from Purvanchal Himalaya.

Author

Sinha, Sakshi, Thakuria, Dwipendra, Chaliha, Chayanika, Uzir, Panchali, Hazarika, Samarendra, Dutta, Pranab, Singh, A. K., and Laloo, Bingiala

Subjects
MANDARIN orange, INDOLEACETIC acid, ORCHARD management, SEEDS, SPECIES, CITRUS, ORCHARDS
Abstract

Despite Northeastern India being "Treasure House of Citrus Genetic Wealth," genetic erosion of citrus diversity poses severe concern with a corresponding loss in seed microbial diversity. The seed microbiome of citrus species unique to the Purvanchal Himalaya is seldom explored for their use in sustainable orchard management. Isolation and characterization of culturable seed microbiomes of eight citrus species, namely, Citrus reticulata Blanco, C. grandis (L.) Osbeck, C. latipes Tanaka, C. megaloxycarpa Lushaigton, C. jambhiri Lush, C. sinensis (L.) Osbeck, C. macroptera Montr, and C. indica Tanaka collected from NE India were carried out. The isolates were then screened for an array of plant growth-promoting (PGP) traits [indole acetic acid (IAA) production, N2 fixation, phosphate and zinc complex dissolution, siderophores, and Hydrogen Cyanide (HCN) production]. The pure culture isolates of seed microbiomes were capable of dissolving insoluble Ca3(PO4)2 (1.31-4.84 µg Pi ml-1 h-1), Zn3(PO4)2 (2.44-3.16 µg Pi ml-1 h-1), AlPO4 (1.74-3.61 µg Pi ml-1 h-1), and FePO4 (1.54-4.61µg Pi ml-1 h-1), mineralized phytate (12.17-18.00 µg Pi ml-1 h-1) and produced IAA-like substances (4.8-187.29 µg ml-1 h-1). A few isolates of the seed microbiome were also able to fix nitrogen, secrete siderophore-like compounds and HCN, and dissolve ZnSO4 and ZnO. The 16S ribosomal Ribonucleic Acid (rRNA)-based taxonomic findings revealed that Bacillus was the most dominant genus among the isolates across citrus species. Isolates CG2-1, CME6-1, CME6-4, CME6-5, CME6-9, CJ7-1, CMA10-1, CI11-3, and CI11-4 were identified as promising bioinoculants for development of microbial consortium having multifaceted PGP traits for nutritional benefits of nitrogen, phosphorus and zinc, and IAA hormonal benefits to citrus crops for better fitness in acid soils. [ABSTRACT FROM AUTHOR]

Published
2023
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27. Blister Blight Disease of Tea : An Enigma

Author

Kalita, Eeshan and Chaliha, Chayanika

Subjects
Technology & Engineering / Agriculture
Abstract

Tea is one of the most popular beverages consumed across the world and is also considered a major cash crop in countries with a moderately hot and humid climate. Tea is produced from the leaves of woody, perennial, and monoculture crop tea plants. The tea leaves being the source of production the foliar diseases which may be caused by a variety of bacteria, fungi, and other pests have serious impacts on production. The blister blight disease is one such serious foliar tea disease caused by the obligate biotrophic fungus Exobasidium vexans. E. vexans, belonging to the phylum basidiomycete primarily infects the young succulent harvestable tea leaves and results in ~40% yield crop loss. It reportedly alters the critical biochemical characteristics of tea such as catechin, flavonoid, phenol, as well as the aroma in severely affected plants. The disease is managed, so far, by administering high doses of copper-based chemical fungicides. Although alternate approaches such as the use of biocontrol agents, biotic and abiotic elicitors for inducing systemic acquired resistance, and transgenic resistant varieties have been tested, they are far from being adopted worldwide. As the research on blister blight disease is chiefly focussed towards the evaluation of defense responses in tea plants, during infection very little is yet known about the pathogenesis and the factors contributing to the disease. The purpose of this chapter is to explore blister blight disease and to highlight the current challenges involved in understanding the pathogen and pathogenic mechanism that could significantly contribute to better disease management.

Published
2020

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