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Name :  D. Ladhalakshmi

Designation :  Senior Scientist

Email Id : यह ईमेल पता spambots से संरक्षित किया जा रहा है. आप जावास्क्रिप्ट यह देखने के सक्षम होना चाहिए.

Phone :  040-24591212

Mobile : https://scholar.google.com/citations?user=U8L2a7wAAAAJ&hl=en

Google scholar link:-

Research gate link:-

ORCID link:- 

Academic Qualification:-

PHD 2007 Plant Pathology Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India.

Employment Record / Work Experience:-

• Senior Scientist Indian Institute of Rice Research, Hyderabad 21.04.2021 Till date.
• Scientist Indian Institute of Rice Research, Hyderabad 28.08.2009 20.04.201

Area research specialization:-

Rice Diseases - Rice False smut Disease

Important projects under taken:-

ICAR-IIRR Core Budget- Host Plant resistance to brown spot disease of rice and its management (2017-2022).

ICAR-IIRR Core Budget – Studies on variability and management of brown spot disease of rice (ongoing).

CRP-Evaluation of propineb 70 % WG on rice crop against leaf blast and brown spot (Co-PI).

DST-SERB –Core grant- Molecular mapping of novel brown spot resistance in Oryza rufipogon derived introgression line and pathogen diversity analysis of B. oryzae (Ongoing).

(Co-PI)-DST-SERB –Core grant- "Marker-assisted introgression of genes associated with yield enhancement and resistance against bacterial blight and blast diseases into an elite rice variety, 'Jaya' " (2023-25)

Award and Honors:-  

1. Best oral presentation for the presentation of Development of artificial screening technique and identification of tolerant sources against false smut disease under field conditions International Conference on Global Perspectives in Crop Protection for Food Security (GPCP -2021) December 8-10, TNAU, Tamil Nadu, India. (2021).

2. Prof. R. Seetharaman Award for Best Young Scientist ICAR- Indian Institute of Rice Research (2015).

3. Best oral presentation for the presentation entitled ‘Artificial inoculation technique for false smut disease of rice under glasshouse condition’ Society for Scientific Development in Agriculture and Technology, Meerut (U.P) 2014.

4. Awarded with first rank certificate in the Post Graduate Diploma in Plant Protection programme National Institute for Plant Health Management, Hyderabad (2000)

 

Foreign Visits:- 

Attended Inaugural workshop of the International Rice False Smut Consortium  held at International Rice Research Institute, Manila, Philippines from 14-17, October 2024 

Technologies/Products/Varieties/Novel germplasm/Methodologies developed:-

1.Standardised the artificial screening of rice false smut disease under glasshouse and field conditions.

2.Developed artificial screening facility for rice false smut disease at IIRR, Hyderabad.

3.Associated in the identification of genotypes resistant to bacterial blight of rice.

4. Associated in the AICRIP Experimental Database Portal(http://www.aicrip-intranet.in).

5. Developing Screening Disease interface - AICRIP Experimental Database (http://www.aicrip-intranet.in

Patents/copyrights:-  

Associated in the development of IIRR Geoportal which includes the false smut disease distribution and intensity.

Student Guided:-  

M.Sc Students - 4; Ph.D - 1

Editors/Reviewers of the Journals:- 

Indian Phytopathology, Journal of Rice Research

Member of Scientific Society:-  

Indian Phytopathological Society, SARR

Training Organized:- 

Training Undergone:- 

1.Eco-friendly management of pests and diseases in rice and rice based cropping systems Indian Institute of Rice Research, Hyderabad
2. Molecular biology techniques in microbiology CFTRI, Mysore, Karnataka.
3. Communication and presentation skills for scientists Xavier Institute of
Management, Bhubaneswar
4. Pathogenomics and Diagnostics – Cloning, sequencing and bioinformatics of genomic regions of plant pathogens and development of specific diagnostics IARI, New Delhi
5. Data analysis using SAS at NAARM, Hyderabad.
6. Exploitation of Microbial and genomic resources for plant disease management UAS, Dharwad, Karnataka.
7. Attended Training Programme on ‘ICTs for empowering farm women’ NAARM, Hyderabad
8 Online workshop on Molecular data analysis through Bioinformatics tools ANGRAU, & S.V. Agricultural College, Tirupati.
9 Advanced statistical techniques for data analysis using R ICAR – IIRR Rajendranagar, & SARR Hyderabad

Publications (Top 30):-

1. Basavaraj, K., Jasudasu, G.S., Prakasam, V., Ladhalakshmi, D., Kannan, C., Krishnaveni, D., Laha, G.S., and Srinivas Prasad, M. 2023. Enhanced sporulation by different light and nutritional sources in Bipolaris oryzae causing brown spot disease of rice. Journal of Environmental Biology, 44: 380-389.
2. Preeti, Lokesha R, Balakrishnan D, Bhaskar M, Gireesh C, Neeraja CN, Singh AK, Nidagundi, JM, Diwan JR, Bheemanna M, Suma TC, Prasad MS, Sundaram RM and Ladhalakshmi D. 2023. Parental Polymorphism between Samba Mahsuri and False Smut Tolerant Landraces using SSR and InDel Markers. Journal of Rice Research, 16 (1): 24-31.
3. Balakrishnan D, Laha GS, Arra Y, Surapaneni M, Beerelli K, Ladhalakshmi D, Srinivas Prasad M, Subba Rao LV, Sundaram RM and Neelamraju S. 2022. Identification of novel major and minor quantitative trait loci associated with bacterial blight resistance in rice from Oryza nivara-derived wild introgression lines. Plant Breeding, 141(6): 756-770.
4. Ladhalakshmi D, Yugander A, Laha GS, Vijayasamundeeswari A, Basavaraj K, Divya Balakrishnan, Preeti, Bhaskar M, Aparna MD and Prasad MS. 2022. Assessing the molecular variability in Ustilaginoidea virens, the rice false smut pathogen with ISSR markers. Journal of Rice Research, 15 (1), pp 51-57.
5. Yugander A, Ershad Md., Muthuraman P, Prakasam V, Ladhalakshmi D, Sheshu Madhav M, Srinivas Prasad M, Sundaram R M and Laha G S. 2021. Understanding the variability of rice bacterial blight pathogen, Xanthomonas oryzae pv. oryzae in Andhra Pradesh, India. Journal of Basic Microbiology 62(2): 185-196.
6. Prakasam V, Ladhalakshmi D, Laha G S, Krishnaveni D, Kannan C and Srinivas Prasad M. 2021. New combination fungicide mancozeb 68% + hexaconazole 4% WG against blast and sheath blight disease in rice. Indian Journal of Plant Protection 49 (2): 137-142.
7. Laha G S, Sundaram R M, Subba Rao L V, Prasad M S, Abdul Fiyaz R, Senguttuvel P, Jyothi Badri, Ladhalakshmi D, Yugander A, Hajira S K, Dilip T and Singh K. 2021. DRR Dhan 53 (RP-6113-Patho-BB9; IET 27294) - a high yielding, bacterial blight resistant, fine grain type rice variety. Journal of Rice Research 14 (1): 75-76.
8. Ladhalakshmi D, Preeti, Bhaskar M, Koteshwar P, Laha GS, Dilip T, Sundaram RM, Prakasam V and Srinivas Prasad M. 2020. Incidence of false smut on rice genotypes and the influence of weather factors on the disease. Journal of Rice Research 13 (2): 61-66.
9. Ladhalakshmi D, Avinash P, Valarmathi P, Laha GS and Srinivas Prasad M. 2019. In vitro studies on Ustilaginoidea virens, a rice false smut pathogen. Journal of Rice Research 12 (1): 56-59.
10. Rao T, Chopperla Ramakrishna, Methre Ramesh, Punniakotti E, Venkatesh V, Sailaja B, Reddy M, Yugander A, Laha G S, Sheshu madhav M, Sundaram R, Ladhalakshmi D, Balachandran S and Mangrauthia Satendra. 2019. Pectin induced transcriptome of a Rhizoctonia solani strain causing sheath blight disease in rice reveals insights on key genes and RNAi machinery for development of pathogen derived resistance. Plant Molecular Biology, 100: 59–71.
11. Ladhalakshmi D, Prasad M S, Prakasam V, Krishnaveni D, Sailaja B, Ram Singh, Vindeswari Prasad, Lore J S, Jyoti Jain, M. Surendran and Laha G S. 2018. Geographic distribution of false smut disease of rice in India and efficacy of selected fungicides for its management. International Journal of Pest Management 65:177-185.
12. Yugander, A., R. M. Sundaram, K. Singh, P. Senguttuvel, D. Ladhalakshmi, K.B. Kemparaju, M.S. Madhav, M.S. Prasad, A.S. Hariprasad and G.S. Laha.2018. Improved versions of rice maintainer line, APMS 6B, possessing two resistance genes, Xa21 and Xa38, exhibit high level of resistance to bacterial blight disease. Molecular Breeding, 38: 100.
13. Yugander A, Sundaram RM, Singh K, Ladhalakshmi D, Subba Rao LV, Madhav MS, et al. 2018. Incorporation of the novel bacterial blight resistance gene Xa38 into the genetic background of elite rice variety Improved Samba Mahsuri. PLoS ONE 13(5): e0198260. https://doi.org/10.1371/journal.pone.0198260.
14. Yugander A, Sundaram R M, Ladhalakshmi, D. et al. 2017. Virulence profiling of Xanthomonas oryzae pv. oryzae isolates, causing bacterial blight of rice in India. Eur J Plant Pathol 149, 171–191. https://doi.org/10.1007/s10658-017-1176-y. NAAS Rating: 8.22
15. Srinivas Prasad M, Ladhalakshmi D, Laha G S, Krishnaveni D, Kannan C, Prakasam V and Valarmathi P. 2015. Changing disease scenario in rice and its management Plant Disease Research 30(2): 200-201.
16. Aruna J, Vijay Kumar S, Rambabu R, Ramesh S, Madhavi K R, Abhilash V, Laha, G S, Krishnaveni D, Ladhalakshmi D, Prakasam V, Ravindra Babu V and Prasad M S. 2015. Variability in Aggressiveness of Rice Blast (P. oryzae) Isolates originating from resistant and susceptible cultivars. Journal of Rice Research 8(1): 82-83.
17. Yugander A, Ladhalakshmi D, Prakasam V, Mangrauthia S K, Srinivas Prasad M, Krishnaveni D, Sheshu Madhav M, Sundaram R M Laha G S. 2014. Pathogenic and genetic variation among the isolates of Rhizoctonia solani (AG 1- 1A) the rice sheath blight Pathogen. Journal of Phytopathology 163: 465– 474.
18. Yugander A, Sundaram R M, Ladhalakshmi D, Hajira Shaik, Sheshu Madhav M, Srinivas Prasad M, Viraktamath B C and Laha G S. 2014. Pathogenic and genetic profile of Xanthomonas oryzae pv. oryzae isolates from Andhra Pradesh. Indian Journal of Plant Protection 42 (2) 149- 155.
19. Ladhalakshmi D, Laha G S, Singh Ram, Karthikeyan A, Mangrauthia S K, Sundaram R M, Thukkaiyannan P and Viraktamath B C. 2012. Isolation and characterization of Ustilaginoidea virens and survey of false smut disease of rice in India. Phytoparasitica 40: 171– 176.
20. Satendra K. Mangrauthia, Malathi P, Surekha A, Ramkumar G, Krishnaveni D, Neeraja C N, Sheshu Madhav M, Ladhalakshmi D, Balachandran S M and Viraktamath.2012. Genetic variation of coat protein gene among the isolates of Rice tungro spherical virus from tungro- endemic states of the India. Virus Genes 44(3): 482- 487.
21. Ladhalakshmi D and Rabindran R. 2012. Molecular Variability in Xanthomonas oryzae pv. oryzae Isolates of Tamil Nadu. Indian Journal of Plant Protection 40: 123-128.
22. Pradeep K, Satya V K, Selvapriya M, Vijayasamundeeswari A, Ladhalakshmi D, Paranidharan V, Rabindran R, Samiyappan R, Balasubramanian P and Velazhahan R. 2012. Engineering resistance against Tobacco streak virus (TSV) in sunflower and tobacco using RNA interference. Biologia Plantarum 56(4): 735-741. NAAS Rating: 7.12
23. Salaheddin K, Valluvaparidasan V, Ladhalakshmi D and Velazhahan R. 2010. Management of Bacterial Blight of Cotton Using a Mixture of Pseudomonas fluorescens and Bacillus subtilis. Plant Protection Sciences 46(2): 41-50.
24. Ladhalakshmi D, Vijayasamundeeswari A, Paranidharan V, Samiyappan R and Velazhahan R. 2009. Molecular identification of isolates of Peronosclerospora sorghi from maize using PCR-based SCAR marker. World Journal of Microbiology and Biotechnology 25: 2129 – 2135.
25. Ladhalakshmi D, Ramiah M, Ganapathy T, Krishna Reddy M, Khabbaz SE, Karunakaran S and Kamalakannan. 2005. Occurrence of new necrosis viral disease of Blackgram (Vigna mungo) and identification using electron microscopy and ELISA technique. Acta Phytopathologica et Entomologica Hungarica 40 (3-4): 213-223.
26. Ladhalakshmi D, Ramiah M, Ganapathy T, Krishna Reddy M, Salah Eddin Khabbaz, Merin babu and Kamalakannan A.2005. First report of the natural occurrence of Tobacco streak virus on blackgram (Vigna mungo). Plant Pathology 55: 569.
27. Salah Eddin K, Marimuthu T, Ladhalakshmi D, Rabindran R and Velazhahan R. 2005. A simple inoculation technique for evaluation of cotton genotypes for resistance to bacterial blight caused by Xanthomonas axonopodis pv. malvacarum. Journal of Plant Diseases and Protection 112 (4): 321- 328.

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