National Emblem CSRTI Logo

सीएसबी - केंद्रीय रेशम उत्पादन अनुसंधान एवं प्रशिक्षण संस्थान , मैसूरु

मनंदावाड़ी रोड, श्रीरामपुरा, केंद्रीय रेशम बोर्ड - वस्त्र मंत्रालय - भारत सरकार

CSB – Central Sericultural Research & Training Institute (CSRTI), Mysuru

Manandavadi Road, Srirampura, Central Silk Board, Ministry of Textiles, Government of India

Swachh Bharat Logo

Dr. A. Maria Joncy

Dr. A. Maria Joncy

Dr. A. Maria Joncy

Scientist-B
Designation :

Scientist-B

Present Posting :

CSB-Satellite Silkworm Breeding Station (SSBS), Cornwall Road, Coonoor -643101, Nilgiris District

Specialization :

Sericulture

Qualification :
  • B.Sc. (Agriculture)
  • M.Sc. (Sericulture)
  • Ph.D. (Sericulture)
Research Work Experience :

My M.Sc. thesis work on “Management of mulberry root rot disease through Plant Growth Promoting Rhizobacteria (PGPR) mediated resistance”. PhD thesis entitled on “Exploring the mulberry endophytes for the management of mulberry root rot disease”.

Details of Research Projects :

Mulberry, a multipurpose tree known as Kalpavriksha, suffers severe leaf yield loss due to root rot disease caused by Macrophomina phaseolina. The pathogen was isolated and confirmed based on cultural, morphological, and microscopic characteristics including sclerotial formation. A total of 105 endophytes comprising bacteria, fungi, and actinobacteria were isolated from healthy mulberry plants, predominantly from root tissues. In vitro antagonistic screening identified highly effective bacterial (ENB1), fungal (ENF20), and actinobacterial (ENA4) endophytes against the pathogen. Selected endophytes exhibited important biochemical traits such as enzyme production, siderophore formation, and IAA production. Molecular identification revealed key antagonists as Bacillus methylotrophicus, Trichoderma asperellum, and Streptomyces rochei. Pot culture experiments demonstrated improved plant growth and higher survival rates in endophyte-treated mulberry plants. Combined application of B. methylotrophicus, T. asperellum, and S. rochei showed synergistic suppression of root rot with up to 75% survivability. SEM studies confirmed severe morphological damage to M. phaseolina hyphae due to endophyte interaction. Vermicompost-based consortia formulation enhanced endophyte viability, induced systemic resistance, and proved most effective under in vivo conditions.

Research Publications :
Publication Number
Full length Research Papers4
Research Short notes-
Books-
Book chapters12
Research abstracts1
Popular articles11
TV/Radio Programmes-
Ten best publications :
  1. Maria Joncy, A., Angappan, K., Nakkeeran, S., Tilak, M., and Umapathy, G. (2019). Exploration of Antifungal Metabolites of Aspergillus terreus (ENF12), an endophytic fungus isolated from mulberry (Morus indica L.) Leaf. Current Journal of Applied Science and Technology, 38(2), 1-15.
  2. Maria Joncy, A., Angappan, K., and Nakkeeran, S. (2019). Mycoendophytes and its antifungal efficacy against Macrophomina phaseolina (Tassi) Goid. incitant of mulberry (Morus indica L.) charcoal rot. International Journal of Current Microbiology and Applied Sciences, 8(07), 2744-2755.
  3. Maria Joncy, A., and Vanitha, S. (2024). In vitro antagonistic activity of Plant Growth Promoting Rhizobacterial (PGPR) isolates against mulberry charcoal rot pathogen, Macrophomina phaseolina. Journal of Science and Technology, 9(09), 1-6.
  4. Maria Joncy, A., Rajeswari, P., Kalpana, R., Saratha, M., and Angappan, K. (2024). Silk protein-infused smart devices- A review. International Journal of Creative Research Thoughts, 12(8), 213-225.
  5. Maria Joncy, A., and Priyadharshini, P. (2018). Botanicals for the management of silkworm diseases. Journal of International Academic Research for Multidisciplinary, 6(3), 1-7.
  6. Maria Joncy, A., and Priyadharshini, P. (2017). Biomedical applications of nanosilk fibers. Journal of International Academic Research for Multidisciplinary, 5(8), 53-58.
  7. Priyadharshini., P, Maria Joncy, A., and Saratha, M. (2017). Industrial utilization of silkworm pupae – A review. Journal of International Academic Research for Multidisciplinary, 5(7), 62-70.
  8. Priyadharshini, P., Maria Joncy, A., Sivaranjani, B., and Mavilashaw, VP. (2016). Health risks in silk industry. Journal of International Academic Research for Multidisciplinary, 4(5), 66-76.
  9. Maria Joncy, A., and Priyadharshini, P. (2016). Parthenogenesis in silkworm. Journal of International Academic Research for Multidisciplinary, 4(6), 217-227.
  10. Priyadharshini, P., and Maria Joncy, A., (2016). Sericigenous insects. Journal of International Academic Research for Multidisciplinary, 4(11), 59-68.

© Copyrights reserved by CSB – Central Sericultural Research & Training Institute (CSRTI), Mysuru All Rights Reserved.