Effect of different concentrations of mercuric iodide on the growth of Microcystis spp.

Authors

  • S Bagampriyal Ph.D.Scholar- Botany, Thiagarajar College, Madurai-625009. Tamil Nadu, India.
  • B Sadhana Assistant Professor,Centre for Research and P.G Department of Botany,Thiagarajar College, Madurai Tamil Nadu, India.

DOI:

https://doi.org/10.37591/rrjomv.v13i1.3055

Keywords:

Cyanobacteria, Microcystis, heavy metals, Phycocyanins, Phycoerythrins and phycobillins.

Abstract

Cyanobacteria are commonly called as blue green algae which are abundantly distributed in both aquatic and terrestrial ecosystem. They are procaryotic autotrophic organisms and have thallus structure. Such organisms are actively involved in the biological nitrogen fixation which can fix the atmospheric nitrogen and converts into ammonia compounds. Plants can utilize such converted components for their growth and metabolic activities. Since they are diazotrophs which is the suitable supplement to soil as a nitrogenous fertilizer. The present study analyzed the impact of mercuric iodide concentrations on the selective cyanobacteria: Microcystis spp. Initially the Microcystis spp. were isolated from the paddy field soil of Selugai, Sivagangai district, Tamil Nadu. The isolated organisms were mass cultured and treated with various concentrations of mercuric iodide (0.1 ppm to 1 ppm) under laboratory condition.

 The present study reported that the various concentrations of such heavy metal enhanced the Microcystis populations. It concluded that Microcystis sp. well grown at the low concentrations of heavy metals and the higher concentration minimized the Microcystis growth when compared to control. This work confirmed that the accumulation of cyanobacterial species in the paddy field pretentiously fixed atmospheric nitrogen and showed the tolerance effect against the various applications of agrochemicals with heavy metals generally applied in crop field.

References

Jorge P. Cyanobacteria in plant health: Biological strategy against abiotic and biotic stresses. Crop protection. 2021;141:105450p.

Song, X, Zhang J, Li D, Peng C. Nitrogen- Fixing Cyanobacteria have the potential to improve nitrogen use efficiency through the reduction of ammonia volatilization in red Soil paddy fields. Soil and Tillage Research.2022; 217: 105274p.

MacKinney G. Absorption of light by chlorophyll solution. J. Biol. Chem. 1941;140:315-322p.

Bennett A, Bogorad L. Complementary chromatic adaptation in a filamentous blue-green alga. J Cell Biol. 1973; 58: 419-435p.

Umbreitt WW, Buris RH, Stauffer JF. Method for nitrogen In: Manometric and Bio-chemical technique. 15th Ed. Burgees publishing company. Minnesota. 1972; 259-260p.

Solorzano, L. Determination of ammonia in natural waters by phenol hypochlorite method. Limnol. Oceanogr. 1969; 14: 799–801p.

Lowrey OH, Rosenbrough NJ, Farr AL, Randall RJ. Protein measurement with the folin phenol reagent. J.Biol.chem. 1951; 193:265-275p.

Prashantkumar S, Savita S. Cyanobacteria as bio stimulants in the paddy fields. Cyanobacterial lifestyle and its applications in Biotechnology. 2022; 281-306p.

Surosz W, Palinska KA. Effect of heavy metal stress on cyanobacterium Anabaena flos- aquae. Archives of environmental contamination and Toxicology.2004; 48(1): 40-48p.

Zeinab K. Toxical response of cyanobacterium Phormidium fragile to mercury. Water,Air and Soil Pollution.1997; 98: 179-185p.

Downloads

Published

2023-02-10

Issue

Vol. 13 No. 1 (2023)

Section

Research Article

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.