Over twenty five years of experience in agricultural research, development and extension in National Agricultural Research System (NARS) of India under various institutes of the Indian Council of Agricultural Research (ICAR). Specialization in physiological, biochemical and molecular aspects of various abiotic stress viz., water, temperature, light, salinity and heavy metals in crops/plants/trees. Currently engaged in Climate Change Research using high throughput phenomics specifically in the area of Chlorophyll Florescence Induction Kinetics in plants in relation  to abiotic stress in Maize and Pearl Millet. Seventy days stint in Virginia Bioinformatics Institute, Virginia Tech in the area of sorghum drought systems biology. Skilled in metabolic pathway and photosynthetic analysis specific to abiotic stress in crops viz., antioxidant metabolites, redox pathways, proline metabolism, chlorophyll florescence to develop hypothesis driven mechanistic elucidation of stress tolerance and adaptation. Proficient in assay development and physiological assessment of drought tolerance with a sound background in molecular biology. Skilled in bioinformatics with special reference to three dimensional protein structure homology modelling.  Wide exposure to statistical experimental designs and analysis in laboratory and field conditions. Excellent proficiency in English with proven ability in scientific documentation. Twenty five (out of 52) major publications in high impact international journals with cumulative impact factor of over 35 with overall citations of 3848, h index of 21, 42.43 citations per paper and 252 citations per year. Credited with in silico discovery of a DNA binding transcription factor product in chromosome 6 of Sorghum bicolor genome archived in “Nature” preprint server (Interdisciplinary Sciences: Computational Life Sciences 4: 2. 133-141), developed a homology model of a possible Cr reducing enzyme in plants (Metallomics, 2009, 1, 375–383), first ever reports in-Current Science, 2004, 86 (7) 901-902 & Trees: Structure and function 2008,22:697-709), Novel Technology (Agroforestry Systems 2005 64(1) 83-87), Process Elucidation (Plant Science, 2004, 166 (4): 1035-1043 cited 104 times) & (Plant and Soil, 2004  265: 141-151) Mechanistic Concept Development (Plant and Soil, 2005, 272 (1-2)77-86) and state of the art  highly cited (>500 citations) review (Environment International, 2005, 31(5) 739-753).  Extensive peer recognition in terms of work in  editorial capacity in the journal "Environmental and Experimental Botany" and Editor in Chief of the Indian Journal of  Dryland Agricultural Research and Development and various other national journals and reviewer and referee for 42 international journals in the areas of Agricultural and Biological Sciences, Environmental Science, Biochemistry, Genetics and Molecular Biology and Multidisciplinary areas. Excellent knowledge in computers with respect to operating systems, software and web programming in addition to customized knowledge in bioinformatics. Outstanding academic record with the award of Gold Medal for the best student in Masters Programme and ICAR research fellowships awards. Specially developed skills include- Planning and implementation of research projects in Plant/ Crop/ Tree physiology, biochemistry. Conducting technical meetings, presenting advanced subject matter seminars, guiding advanced degree students for Dissertation or Thesis. Identification of research priorities and formulating work strategy as desired with available resources. Extension activities for dissemination of research findings and other relevant information. Analysis of data, concise report writing, preparing status review and reports, scientific documentation and popular report presentations, editing scientific writing, compiling and amalgamating subject matter advancements.  Assisting in allied subject areas as and when needed. Obtaining extra mural funding for research projects of international relevance. Ability to coordinate efforts of many to meet organizational goals.  Decision-making with the spirit of creativity, stability and dedication. Penchant to work in a multi-cultural and multi-disciplinary environment.

Career Status:
Government scientist

Research Areas:
Abiotic Interactions, Environmental Plant Biology, Phenomics, Systems Biology


Recent Books

1. Climate Resilient Agriculture Strategies and Perspectives Edited by: Ch.Srinivasa Rao, Arun K. Shanker and Chitra Shanker.   Intech Open Life Sciences  Agricultural and Biological Sciences ISBN 978-953-51-3896-9,

2. Abiotic and Biotic Stress in Plants - Recent Advances and Future Perspectives  Edited by: Arun K. Shanker and Chitra Shanker.   Intech Open Life Sciences  Agricultural and Biological Sciences ISBN 978-953-51-2250-0, 768 pages

3.  Crop Stress and its Management: Perspectives and Strategies 2011 Edited by: Venkateswarlu, B.; Shanker, A.K.; Shanker, C.; Maheswari, M. (Eds.). Central Research Institute for Dryland Agriculture, Hyderabad and Directorate of Rice Research, Hyderabad: Springer Life Sciences  Agriculture 1st Edition ISBN: 978-94-007-2219-4  

4. Abiotic Stress in Plants - Mechanisms and Adaptations 2011 Edited by: Arun Shanker and B. Venkateswarlu. Central Research Institute for Dryland Agriculture, Hyderabad: Intech Open Life Sciences Agricultural and Biological Sciences ISBN: 978-953-307-394-1 

5. Abiotic Stress Response in Plants - Physiological, Biochemical and Genetic Perspectives 2011   Edited by: Arun Shanker and B. Venkateswarlu. Central Research Institute for Dryland Agriculture, Hyderabad: Intech Open Life Sciences  Agricultural and Biological Sciences ISBN: 978-953-307-672-0 

 Recent Best papers

Bhanu, B.D., Ulaganathan, K. and Shanker, A.K., 2019. Seasonal variation in expression pattern of genes in irrigated and water stressed transcriptomes of Zea mays Z59. Journal of Plant Biochemistry and Biotechnology, 28(3), pp.271-279.

Pratibha, G., Srinivas, I., Rao, K.V., Raju, B.M.K., Shanker, A.K., Jha, A., Kumar, M.U., Rao, K.S. and Reddy, K.S., 2019. Identification of environment friendly tillage implement as a strategy for energy efficiency and mitigation of climate change in semiarid rainfed agro ecosystems. Journal of cleaner production, 214, pp.524-535.

Pratibha, G., Srinivas, I., Rao, K.V., Shanker, A.K., Raju, B.M.K., Choudhary, D.K., Rao, K.S., Srinivasarao, C. and Maheswari, M, 2016. Net global warming potential and greenhouse gas intensity of conventional and conservation agriculture system in rainfed semi arid tropics of India. Atmospheric Environment 145 :239-250.

Srinivasarao, C., Shanker, A.K., Kundu, S. and Reddy, S, 2016. Chlorophyll fluorescence induction kinetics and yield responses in rainfed crops with variable potassium nutrition in K deficient semi-arid alfisols. Journal of Photochemistry and Photobiology B: Biology, 160 :86-95.

Yadav, S. K., Yogesh Kumar Tiwari, D. Pavan Kumar, Arun Kumar Shanker, N. Jyothi Lakshmi, M. Vanaja, and M. Maheswari. Genotypic Variation in Physiological Traits Under High Temperature Stress in Maize. Agricultural Research: 1-8.

Rao, AVM Subba, Arun K. Shanker, V. U. M. Rao, V. Narsimha Rao, A. K. Singh, Pragyan Kumari, C. B. Singh et al. Predicting irrigated and rainfed rice yield under projected climate change scenarios in the eastern region of India. Environmental Modeling & Assessment 21, no. 1 (2016): 17-30.

Bhanu, B. Divya, Kandasamy Ulaganathan, Arun K. Shanker, and S. Desai. RNA-seq Analysis of Irrigated vs. Water Stressed Transcriptomes of Zea mays Cultivar Z59. Frontiers in plant science 7 (2016).

Srinivasarao, Ch, Sumanta Kundu, Arun K. Shanker, R. Prakash Naik, M. Vanaja, K. Venkanna, Maruthi Sankar, and K. Naresh. "Continuous cropping under elevated CO 2: Differential effects on C4 and C3 crops, soil properties and carbon dynamics in semi-arid alfisols." Agriculture, Ecosystems & Environment 218 (2016): 73-86.

Kumar, Pola Naveen, Yenumula Gerard Prasad, Mathyam Prabhakar, Arun K. Shanker, and Divya Bhanu. "Molecular and in Silico Characterization of Achaea janata Granulovirus Granulin Gene." Interdisciplinary Sciences: Computational Life Sciences (2016): 1-12.

Bhanu, B. Divya, Kandasamy Ulaganathan, Arun K. Shanker, and S. Desai. RNA-seq Analysis of Irrigated vs. Water Stressed Transcriptomes of Zea mays Cultivar Z59. Frontiers in plant science 7 (2016).

Pratibha, G., Srinivas, I., Rao, K. V., Raju, B. M. K., Thyagaraj, C. R., Korwar, G. R., B.Venkateswarlu, Arun K.Shanker, Deepal Chowdary and  Srinivasarao, C. (2015). Impact of conservation agriculture practices on energy use efficiency and global warming potential in rainfed pigeonpea–castor systems. European Journal of Agronomy  66, 30-40.

Shanker, A. K., Maheswari, M., Yadav, S. K., Desai, S., Bhanu, D., Attal, N. B., & Venkateswarlu, B. (2014). Drought stress responses in crops. Functional & integrative genomics, 14 (1), 11-22.

Yadav Sushil Kumar, Sweety Katikala, Varalaxmi Yellisetty, Annapurna Kannepalle, Jyothi Lakshmi Narayana, Vanaja Maddi, Maheswari Mandapaka, Arun Kumar Shanker, Venkateswarlu Bandi, and Kirti Pulugurtha Bharadwaja. (2012) Optimization of Agrobacterium mediated genetic transformation of cotyledonary node explants of Vigna radiata. SpringerPlus 1 (1): 59.

Arun K. Shanker, A Maddaala, MA Kumar, SK Yadav, M Maheswari, B Venkateswarlu (2012)  In silico targeted genome mining and comparative modelling reveals a putative protein similar to an Arabidopsis drought tolerance DNA binding transcription factor in Chromosome 6 of Sorghum bicolor genome Interdisciplinary Sciences: Computational Life Sciences 4 (2), 133-141

G R Rao, Arun K Shanker, I Srinivas, G R Korwar, Bandi Venkateswarlu (2011) Diversity and variability in seed characters and growth of Pongamia pinnata (L.) Pierre accessions   Trees: Structure and Function 25 725-734

M Babita, M Maheswari, L M Rao, Arun K Shanker, D Gangadhar Rao  (2010)  Osmotic adjustment, drought tolerance and yield in castor (Ricinus communis  L.) hybrids   Environmental and Experimental Botany 69: 243-249

Arun K Shanker, M Maheswari, S K Yadav, B Venkateswarlu  (2009)  In silico analysis for the presence of HARDY an Arabidopsis drought tolerance DNA binding transcription factor product in chromosome 6 of Sorghum bicolor genome   Nature Precedings  PREPRINT

A K Shanker, Maduraimuthu Djanaguiraman, Bandi Venkateswarlu  (2009)  Chromium interactions in plants: current status and future strategies   Metallomics    2009, 1, 375–383 (featuring in top ten list for the journal)

 G R Rao, G R Korwar, A K Shanker, Y S Ramakrishna (2008) Genetic associations, variability and diversity in seed characters, growth, reproductive phenology and yield in Jatropha curcas (L.) accessions   Trees-Structure and Function 22:  30.  697-709   Oct 

A K Shanker (2006) Countering UV-B stress in plants: Does selenium have a role?   Plant and Soil 282: 22. 21-26 Apr 

M Djanaguiraman, J A Sheeba, A K Shanker, D D Devi, U Bangarusamy  (2006)  Rice can acclimate to lethal level of salinity by pretreatment with sublethal level of salinity through osmotic adjustment   Plant and Soil  284:  50.  363-373   Jun  

A K Shanker, C Shanker (2005) Impact factor: Is it dragging science off course?   Current Science 89: 3. 1782-1783 Dec 10 

A K Shanker, V Ravichandran, G Pathmanabhan (2005) Phytoaccumulation of Chromium by Some Multipurpose-Tree Seedlings   Agroforestry Systems 64: 13. 83-87 Jan 

M Djanaguiraman, D D Devi, A K Shanker, J A Sheeba, U Bangarusamy (2005)  Seleninm - an antioxidative protectant in soybean during senescence   Plant and Soil 272: 59. 77-86 May 

A K Shanker, C Cervantes, H Loza-Tavera, S Avudainayagam (2005) Chromium toxicity in plants   Environment International 31: 139. 739-753 Jul  ( featuring as #1 top cited in the top 10 cited for this journal)

A K Shanker, G Pathmanabhan (2004) Speciation dependant antioxidative response in roots and leaves of sorghum (Sorghum bicolor (L.) Moench cv CO 27) under Cr(III) and Cr(VI) stress   Plant and Soil 265: 1-2. 141-151 

A K Shanker, M Djanaguiraman, R Sudhagar, K Jayaram, G Pathmanabhan (2004)  Expression of metallothionein 3-like protein mRNA in sorghum cultivars under chromium (VI) stress   Current Science 86: 7. 901-902 

A K Shanker, M Djanaguiraman, R Sudhagar, C N Chandrashekar, G Pathmanabhan (2004)  Differential antioxidative response of ascorbate glutathione pathway enzymes and metabolites to chromium speciation stress in green gram (Vigna radiata (L.) R.Wilczek. cv CO 4) roots   Plant Science 166: 42. 1035-1043 Apr 

Current Affiliations
Experience & Education