Abstract：
:The effect of chronic exposure to carbofuran (4.5 ppm in static water) for six months on the gonadal histophysiology and hypothalamo-neurohypophyseal complex was studied in Channa punctatus. Experimental observations revealed significant inhibition of gonadal development with associated degenerative abnormalities as evidenced by ovarian and testicular histology and reduced gonadosomatic index. Degenerative changes in ovary were exihibited by stage I (oogonium) and stage II (immature/non-vitellogenic) oocytes as marked by perinuclear ooplasmic lysis, clumping and dissolution resulting in disintigration of nuclear material altogether attributed to complete degeneration of such oocytes. Testicular deleterious changes included degeneration of spermatogenic elements and necrosis of interstitial cells of Leydig. Correlative histophysiological changes were also observed in the pituitary gonadotrophs and hypothalamic, nucleus pre-opticus, neurons that were smaller, inactive and less in number with associated necrosis. Corresponding to the changes in nucleus pre-opticus neurons, significant inhibition of brain monoamine oxidase enzyme activity was also recorded in treated group. These observations suggest that carbofuran even at low concentration level under long-term exposure is capable of inducing retardation of gonadal development which might have been mediated through the impairment of the hypothalamo-neurohypophyseal-gonadal axis in this species.
journal_name
J Environ Bioljournal_title
Journal of environmental biologyauthors
Ram RN,Singh IJ,Singh DVsubject
Has Abstractpub_date
2001-07-01 00:00:00pages
193-200issue
3eissn
0254-8704issn
2394-0379journal_volume
22pub_type
杂志文章abstract：:Effect of paper mill effluents on Phaseolus aureus Roxb was studied. The effluent significantly inhibited germination of root and shoot length. The bio-chemical injury does not appear spontaneously but with the increase in effluent treatment there is reduction in observed biochemical parameters (chlorophyll, protein, ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2005-06-01 00:00:00
abstract：:The objective of the present study is to investigate the mechanism of tetracyclines and macrolieds absorption on Taihu Lake sediments. In the study, batch technique was used to study the adsorptive behavior of three pharmaceutical antibiotics (tetracycline, oxytetracycline and tylosin) from several sediments of Taihu ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-09-01 00:00:00
abstract：:Infection of the pebrine disease has been found to be highly virulent and harm the cocoon yield as well as characters of silkworm Anthereae mylitta. Therefore, an attempt was made to evaluate the impact of parasite Nosema species on the ecorace (Sukinda) of A. mylitta in respect of transovarial transmitted (T1), secon...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2013-01-01 00:00:00
abstract：:The present study was carried out to isolate, screen and evaluate potential candidates of local bacteria isolated from tiger shrimp Penaeus monodon and slipper cupped oysters Crassostrea iredalei as probiotics in shellfish aquaculture. A total of 144 of bacteria were successfully isolated from the intestine and stomac...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-07-01 00:00:00
abstract：:The acute toxicity of unionized ammonia; nitrite and nitrate to the Indian major carp Catla catla (Hamilton) was determined using static and continuous flow through systems for 24 hours. The median lethal concentration (LC50) values for 24 h of ammonia (NH3-N), nitrite (NO2-N) and nitrate (NO3-N) were 0.045 mg/l, 120....
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2002-04-01 00:00:00
abstract：:An attempt was made to find out the impact of shrimp farm discharges on benthic diversity in the discharge point of a shrimp farm. The duration of the study was one culture period right from stocking to harvest. The results revealed that the values of environmental entities were in the safe levels. As regards nutrient...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2009-09-01 00:00:00
abstract：:This study has been conducted between years 2002-2008 in nearby Egirdir lake, which is acknowledged to be amongst the biggest fresh water lakes in Turkey. Within the scope of this study observations have been made on one of the cat species common in Turkey, Jungle Cat Felis chaus, its biology distribution, population ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-01-01 00:00:00
abstract：:Traditional medicinal plants contain a wide variety of chemicals that have potent antibacterial activity. To find an alternative agent of overcoming the problems of methicillin-resistant Staphylococcus aureus (MRSA), the antibacterial mechanism of Ponciruss trifoliata against MRSA was investigated. Ethyl acetate (EtOA...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-01-01 00:00:00
abstract：:Imperata grassland at Dorgakona, Barak valley, North Eastern India was analyzed for species composition and diversity pattern in relation to traditional management practices. 19 families were in the burnt and unburnt plots of the study site with Poaceae as the most dominant one. 29 species occurred in the burnt plot a...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2012-09-01 00:00:00
abstract：:This study represents the summary of the water quality of River Ganga during mass bathing in Haridwar during Maha Kumbha of 2010 in terms of microbiological and molecular analysis. The sample was collected from River Ganga during Makar Sankranti to Shakh Poornima and assessed for fecal indicator bacteria Escherichia c...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2013-07-01 00:00:00
abstract：:Water in rice fields of mountain valley of Ziro, Arunachal Pradesh was investigated for physico-chemical characterization during rice fish farming season (Kharif) of 2013. Water temperature, dissolved oxygen, biological oxygen demand, free carbon dioxide, nitrate-nitrogen, phosphate-phosphorus, chloride, total hardnes...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2015-09-01 00:00:00
abstract：:Most of the statistical techniques used to evaluate the data obtained from toxicity studies are based on the assumption that the data show a normal distribution and homogeneity of variance. Literature review on toxicity studies on laboratory animals reveals that in most of the cases homogeneity of variance alone is ex...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:Selected insecticides, Chloropyrifos, Dichlorovos, Methyl parathion, Phorate and Methomyl, at concentrations ranging from 0 to 10 kg ha(-1) were tested for their non-target effects towards activity of phosphatases in two soils. In soil samples receiving 2.5 kg ha(-1) of the insecticides Dichlorovos, Phorate and Methom...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2002-10-01 00:00:00
abstract：:This study reports the effects of low level developmental Pb exposure on specific brain regions like hippocampus, cerebellum and cerebral hemispheres of antioxidant enzyme activities. Wistar dams were exposed to 50 ppm, 100 ppm and 500 ppm of Pb acetate in drinking water during pregnancy and lactation (gestation day 6...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:Time is particularly critical for an oil spill occurring in the ocean as wind and current can rapidly spread the oil over a large area in a short time. Using the features of sensor surveillance system and mathematical trajectory models, the cooperation of surveillance and trajectory under oil spill emergency response ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-09-01 00:00:00
abstract：:Approximately 1 million tons of Agave tequilana plants are processed annually by the Mexican Tequila industry generating vast amounts of agricultural waste. The aim of this study was to investigate the potential use of Agave tequilana waste as substrate for the production of commercially important enzymes. Two strains...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:In the present study, a new type of interior optical fiber illuminating reactor was developed for H2 production to solve the problem of luminous intensity attenuation at the center portion of a reactor, and an immobilization technique was used to enhance the stability of a continuous hydrogen production process with a...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-09-01 00:00:00
abstract：:The impact of the freshwater bivalve Corbicula leana on plankton community dynamics was examined during a cyanobacterial bloom period. Nutrient and chlorophyll concentrations, primary productivity, and phytoplankton and zooplankton communities in the experimental enclosures were measured at 2-3 day intervals. The intr...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2011-03-01 00:00:00
abstract：:Adverse effects of diesel oil on microanatomical structure of the alimentary canal of O. nilotica were studied using SEM observations. The study revealed irregular arrangement of the stratified epithelial cells along with fragmentation of the normal concentric pattem of microridges of the same cells in buccopharynx an...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：:The germination of ten plant species from the Iberian Peninsula was assessed along a water deficit gradient between -0. 1652 (moist) and -0.4988 MPa (dry) of osmotic potential, created by addition of increasing concentrations of polyethylene glycol (PEG 6000) to distilled water in which plants were grown hydroponicall...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2006-10-01 00:00:00
abstract：:A Microcoleus chthonoplastes strain SC7B9002-1 isolated from microbial mats in tidal channels from San Carlos, Baja California Sur, Mexico was subjected to short- (15 days) and long-term (2 years) conservation assays in liquid nitrogen (-196 degrees C) using cryoprotective agents, such as 5% DMSO, 20% PVP-40, and 20% ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2011-07-01 00:00:00
abstract：:The Finnish wood heat treatment technology ThermoWood, was recently introduced to Turkey. Data about the mechanical and physical properties of Turkish wood species are important for industry and academia. In this study two industrially important Turkish wood species, pine (Pinus nigraArnold.) and fir (Abies bornmüller...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-11-01 00:00:00
abstract：:The effect of salinity on the survival and growth of Callinectes amnicola (De Rocheburne) from the Lagos Lagoon, Nigeria was monitored in the laboratory for 22 weeks. The crabs were euryhaline and tolerated a salinity range of 5 to 25 per thousand and had 90% survival at 15 and 20 per thousand. The highest gain in wei...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-07-01 00:00:00
abstract：:The tissue cholesterol and serum cortisol changes during four reproductive phases has been studied in the freshwater fish Notopterus notopterus of male sex during four phases, preparatory (January - March), prespawning (April - May), spawning (August - September) and post spawning (November - December). The cholestero...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2005-10-01 00:00:00
abstract：:The fungi Botryodiplodia theobromae and Rhizopus oryzae produce extracellular amylase when grown on a liquid medium containing 2% (WN) soluble starch or cassava starch residue(CSR) (as starch equivalent), a waste generated after extraction of starch from cassava, as the sole carbon source. Using CSR as the sole carbon...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2004-10-01 00:00:00
abstract：:The purpose of this study is to investigate the factors that cause malformed frogs in upstream Kaoping river (KP site) and Tungkang river (T site) of Southern Taiwan. In this experiment, the activities of monooxygenase (MO), glutathione-S-transferase (GST), acetylcholinesterase (AchE) as well as the concentration of v...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2011-11-01 00:00:00
abstract：:Several bacterial strains tolerant to volatile organic compounds (VOCs) were isolated from the air emissions of a typical industrial wood painting plant. Four strains that grew vigorously on a mineral salt basal medium and VOC-saturated atmosphere were identified using BIOLOG and fatty acids analysis. A 16S rDNA seque...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2009-01-01 00:00:00
abstract：:Vertical distribution of polychaetes in a semi-enclosed brackishwater pond of Nethravathi estuary was studied for one year from February 2004 to January 2005. The semienclosed brackishwater pond is a shallow water body with an average depth of 1-1.5 m with an area of 12 ha having direct connection with the estuary whi...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2009-11-01 00:00:00
abstract：:This paper discusses the outcome of a research that examines the relationships between vulnerability and adaptation of urban dwellers to the slope failure threat in the Klang Valley Region. Intense urban landuse expansions in the Klang Valley Region have increased urban dwellers vulnerability to slope failures in rece...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2012-04-01 00:00:00
abstract：:The boundaries of landscape policies often coincide with political or economic boundaries, thus creating a situation where a unit of landscape protection or management reflects more its present political status than its historico-geographical situation, its historical function and formation. At the same time, it is ev...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2012-04-01 00:00:00
