One of the major essential macronutrient for plant is phosphorous and is applied to soil in the form of chemical phosphatic fertilizers which is immobilized rapidly and becomes unavailable to plants. Microorganisms are involved in the transformation of soil P and is thus an integral part of the soil P cycle. In particular, soil microorganisms are effective in releasing P from inorganic and organic pools of total soil P through solubilization and mineralization. P-solubilization ability of the microorganisms is considered to be one of the most important properties. The adverse impact of chemical fertilizers on the environment and the less cost effectiveness stimulates the exploration of Phosphate solubilisers. 2/3rd of phosphate fertilizer is unavailable within a very short period of its application due to fixation in the soil complex. To overcome the problem of phosphorus solubilisation and to raise its concentration in soil, the present work was undertaken which deals with the isolation and inoculation of VAM spores from four sets of soil sample mainly clayey textured soil as classified on the basis of its morphological characteristics done through particle size analysis. The result of the present study showed that AM symbiosis associated with plant roots and soil aggregates optimizes the phosphorus solubilization and it is confirmed by the physico-chemical and biochemical estimations along with the mineralogical studies, where the results are within expectations.
Microbial degradation of spilled oil is one of the major routes of the natural removal of contaminants from the environment. Biodegradation gradually destroy oil spills by the help of microorganisms. In the present work the indigenous microorganisms from the oil contaminated area were isolated. Contaminant compounds transformed by these isolates through reactions that take place as a part of their metabolic process were studied. The result of the present study showed the bioremediation of hydrocarbon contaminated soils, which exploits the ability of micro organisms to degrade and/or detoxify organic contaminations.
The human microbiome is the term used for collective combinations of microorganismspresent in the human body as a safeguard against contaminations,infections etc. According to type and location of secretions, the humanmicrobiome helps to protect us from diseases by switching on the respectiveimmune system (Passive or active). The present article is an attempt to makethe readers aware about the natural flora of human body, their role into theprotection of human body from opportunistic infections. The article has alsosparingly touches the immunopotentiation of human flora and their contributionin enhancing the immune response.
Matured and acclimatized specimens of Heteropneustes fossilis were exposed to 30 ppm cupric chloride. The fish were sacrificed on 15th day of ovaries and were excised out. Histological preparation by the method of OFG staining was studied. Histological observations were observed that there yolk investment appeared cracked and broken due to the treatment with various reagents during paraffin impregnation. The young ova proliferated from stroma appear quite small and without a distinction of core. Most of ova were showed quite thick encapsulation. Vitellogenesis was much pronounced and delayed in liberation of ova was expected.
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