About the Authors

Debasis Upadhyay

Affiliations Department of Botany, Budge Budge College, Kolkata, West Bengal, India, Centre of Advanced Studies, Department of Botany, University of Calcutta, West Bengal, India

Swapan Bhattacharya

Affiliation Department of Microbiology, Moulana Azad College, Kolkata, West Bengal, India

David K. Ferguson

Affiliation Department of Paleontology, University of Vienna, Vienna, Austria

Subir Bera

berasubir@yahoo.co.in

Affiliation Centre of Advanced Studies, Department of Botany, University of Calcutta, West Bengal, India

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DU S. Bhattacharya DKF S. Bera. Performed the experiments: DU. Analyzed the data: DU DKF S. Bera. Contributed reagents/materials/analysis tools: DU S. Bera. Wrote the paper: DU DKF S. Bera.