alexa Some Physiological Insights of 2,4-D Sensitivity in an Aquatic Fern: Azolla pinnata R.Br | OMICS International | Abstract
ISSN: 2155-952X

Journal of Biotechnology & Biomaterials
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Research Article

Some Physiological Insights of 2,4-D Sensitivity in an Aquatic Fern: Azolla pinnata R.Br

Arnab Kumar De, Narottam Dey and Malay Kumar Adak*

1Plant Physiology and Plant Molecular Biology Research Unit, Department of Botany, University of Kalyani, Kalyani-741235, Nadia, West Bengal, India.

*Corresponding Author:
Malay Kumar Adak
Plant Physiology and Plant Molecular Biology Research Unit
Department of Botany, University of Kalyani
Kalyani-741235, Nadia, West Bengal, India
Tel: 9432418218
E-mail: [email protected]

Received Date: July 08, 2016; Accepted Date: July 25, 2016; Published Date: August 01, 2016

Citation: De AK, Dey N, Adak MK (2016) Some Physiological Insights of 2,4-D Sensitivity in an Aquatic Fern: Azolla pinnata R.Br. J Biotechnol Biomater 6:235. doi:10.4172/2155-952X.1000235

Copyright: © 2016 De AK, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

In an experiment with Azolla pinnata R.Br. under varying concentrations of herbicide (2,4-D), it reveals that the fern species has an wider ranges of physiological activities in moderation. Initially, the effects of the herbicide were reflected with minimum changes in dry matter accumulation in a dose dependent manner. The changes of membrane permeability had the maximum effects on 1000 μM of 2,4-D following the concentration gradient. However, the intermediate concentration of herbicide had not brought any significant changes in electrolytic conductivity. At initial concentration of herbicide treatments the electrolyte conductivity remains more stable. In support to osmotic stability plants recorded a significant change in water deficits that was experienced by proline accumulation in tissues. Thus, a steady increase in proline concentration was the feature of this species when interacts with 2,4-D. In another way the fern species had tolerated the loss of turgidity with significant accumulation of glycine-betaine with their maximum value at 1000 μM of 2,4-D. In further progress of effects of 2,4-D the plants were significantly characterised with an increase in ROS activities. Thus, ROS induced tissue lysis was detected by in vivo Evan's Blue staining of the root tissues with maximum intensity at 1000 μM of 2,4-D. The initial defence barrier of this species against ROS at cellular spaces was studied with in-gel analysis of enzyme like wallbound peroxidase. Plants registered a maximum peroxidase activities at influence of 2,4-D with 1000 μM. In addition to gene expression in Azolla a distinct polymorphism was observed as a function of 2,4-D treatments and that may be set as a bio indicator to herbicide interaction.

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