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A. Karthikayen

Posted by | February 28, 2021


Dr  Karthikeyan, A.

Job Title:

Scientist F


Phone Number:



Google Scholar Profile


Working as Scientist F in the Institute of Forest Genetics and Tree Breeding, Coimbatore India. Undertook research on Frankia (N fixing bacteria) for improvement of Casuarinas, Rhizobium on leguminous tree crops and also on other Nitrogen fixers such as Azospirillum and Azotobacter.

Research Areas:

  • Bio fertilizers
  • Forest pathology

Current N-related Projects:

  • Identification of superior strains of Rhizobium and AM fungi for improving planting stocks of Pterocarpus santalinus


A. Karthikeyan and N. B. Sivapriya (2018). Responses of Bruguiera sexangula (Lour) Poir.propagules to beneficial microbes in the nursery. Journal of  Forestry Research : 29 (4): 1093-1098  DOI. 10.1007/s11676-017-0502-8

A. Karthikeyan (2019). Effects of arbuscular mycorrhizal fungi and Rhizobium on photosynthetic activity and growth response in Acacia auriculiformis seedlings under elevated CO2.  Journal of Tropical Forest Science  31 (4) : 398-403 doi.10.26525/jtfs2019.31.4

 A. Karthikeyan (2020) Afforestation in barren laterite lands with Swietenia macrophylla G. King and plant growth promoting microbes. REFORESTA 954 to 65 Doi:

 A. Karthikeyan and T. Arunprasad (2021). Growth responses of Pterocarpus santalinus L.f., seedlings to native microbial symbionts (Arbuscular mycorrhizal fungi and Rhizobium aegyptiacum) under nursery conditions. Journal of Forestry Research  32: 225-231. Doi:10.1007/s11676-019-01072-y

Karthikeyan and T. Muthukumar (2006). Growth response of Acacia planifrons to arbuscular mycorrhizal fungi and nitrogen fixing bacteria under nursery conditions. Forests, Trees and Livelihoods, (Academic publishers, U.K) 16 : 269-275. 6.

A. Karthikeyan and M. Surya Prakash (2008). Effects of Arbuscular Mycorrhizal Fungi, Phosphobacterium and Azospirillum sp.  on Successful Establishment of Eucalyptus camaldulensis Dehn. in Bauxite Mine Spoils. Forests, Trees and Livelihoods (Academic publishers U.K) 18 (2): 183-191.

A. Karthikeyan, B. Deeparaj and P. Nepolean (2009). Reforestation in Bauxite mine spoils with Casuarina equisetifolia Frost. and beneficial microbes. Forest, Trees and Livelihoods (Academic publishers U.K) 19: 153-165.

A. Karthikeyan and K.M. Sakthivel (2011). Efficacy of Azotobacter chroococcum in rooting and growth of Eucalyptus camaldulensis stem cuttings Research Journal of . Microbiology (U.S.A). DOI: 10.3923/rjm/2011, 6: 618-624.

Karthikeyan, K. Chandrasekaran, M. Geetha and R. Kalaiselvi (2013). Growth response of Casuarina equisetifolia Forst. rooted stem cuttings to Frankia in nursery and Field conditions J. Biosci. 38; 741-747 –

Diagne Nathalie, Karthikeyan Arumugam, Mariama Ngom, Mathish Nambiar-Veetil, Claudine Franche, Krishna Kumar Narayanan, and Laurent Laplaze (2013) Use of Frankia and actinorhizal plants for degraded lands reclamation. Bio med Research. International. Volume. 2013 ID. 948258. 9 pages.

A. Karthikeyan, M. Geetha and K. Chandrasekaran (2013). Nodulation of rooted stem cuttings in Acacia auriculiformis A. cunn and Ex. Benth. Indian Forester: 139 (11); 1046-47.

A. Karthikeyan (2013). Nodulation and Nitrogen fixation in rooted stem cuttings of Casuarina junghuhniana Miq. by Frankia inoculation. In: Microbiological Research in Agro ecosystem management(ed.) R.K. Velu Springer India pp289-296.

A.Karthikeyan (2016).  Frankia strains for improving growth, biomass and nitrogen fixation in Casuarina equisetifolia seedlings. J. Trop. For. Sc 28: 235-242.

A. Karthikeyan (2016). Response of Casuarina equisetifolia and C. junghuhniana to Frankia under field conditions.In: Nicodemus, A., Pinyopusarerk, K., Zhong, C.L., Franche, C (Editors). Casuarina improvement for securing rural livelihoods. Proceeding of fifth International Casuarina workshop, Chennai, India  from Feb 3 to Feb 7 2014. Institute of Forest Genetics and Tree Breeding, India. pp-83-87.

A. Karthikeyan (2017). Impact of elevated CO2 in Casuarina equisetifolia rooted stem cuttings inoculated with Frankia. Symbiosis. 72: 39-94. Doi.10.1007/s13199-016-0445-4.