Toxicological Impact of Herbicides on Cyanobacteria
Journal Title: Annual Research & Review in Biology - Year 2016, Vol 9, Issue 4
Abstract
The use of herbicides in modern agriculture to eradicate weeds has led to serious environmental contamination resulting in a loss of growth and development of many beneficial micro-organisms. Low cost, easy availability, lax in regulatory mechanism have contributed to the continuous use of the herbicides in tropical and subtropical regions. The removal of these herbicides from soil and aquatic systems is a difficult task and as a result herbicides persist in these ecosystems for a long period of time. Cyanobacteria are a diverse group of gram-negative photosynthetic prokaryotes. Their life processes require only water, carbon dioxide, inorganic substances and light and these organisms contribute greatly to terrestrial as well as aquatic ecosystems through their ability to increase soil fertility by adding nitrogen, enhancing water holding capacity, releasing vitamins and plant stimulating hormones, adding extra cellular polysaccharides and by solubilizing phosphates. The present paper review responses of cyanobacteria to herbicides and impact of herbicides on photosynthetic pigments, photosynthesis and nitrogen assimilation by cyanobacteria. The tolerance mechanisms and herbicide biodegradation potential of cyanobacteria are also reviewed.
Authors and Affiliations
D. P. Singh, J. I. S. Khattar, Gurdeep Kaur, Yadvinder Singh
Keywords
Related Articles
- EP ID EP350961
- DOI 10.9734/ARRB/2016/22614
- Views 101
- Downloads 0
Adhesion of Heterotrophic Bacteria on the Surface of Containers Used for Well Water Storage in Garoua (North Cameroon)
Aims: The abundance of heterotrophic bacteria adsorbed on the walls of four types (polypropylene, glass, aluminium, clay) of containers used for well water storage in Garoua was compared. Methodology: Water samples were...
Carcass and Organ Characteristics of Growing Japanese Quails (Coturnix coturnix japonica) Fed Sun-dried Mango (Mangifera spp) Kernel Meal as a Replacement for Maize
A study using complete randomized design (CRD) was carried out to assess the effect of Sun-dried Mango Kernel Meal (SMKM) on the carcass and organs characteristics of growing Japanese quails (Coturnix coturnix japonica)....
Optimization of Somatic Embryogenesis in Ferula assa-foetida L. (a Rare Medicinal Plant)
Experiments was carried out to examine the effect of abscisic acid (ABA), source of carbon and temperature on secondary somatic embryogenesis and somatic embryo germination of Ferula assa-foetida L. Cotyledonary somatic...
Nutritional Status of Primary School Children in Kawo District of Kaduna Metropolis, Nigeria
Aims: This study was designed to assess the nutritional status of school children aged 5-12 years in Kawo District, Kaduna State, Nigeria in relation to gender and school background. Study Design: One hundred and forty...
Physiological Reaction of Erythrocytes’ Micro Rheological Features in Newborn Piglets on Unfavourable Environmental Factors
The aim of research is to find out peculiarities of erythrocytes’ micro rheological features in piglets having undergone the impact of the most abundant unfavourable factors of the environment. We observed 78 newborn pig...