http://nopr.niscpr.res.in/handle/123456789/23034 2026-10-08T19:37:20Z http://nopr.niscpr.res.in/handle/123456789/23346 Title: <i>In vivo </i>enhancement of nucleopolyhedrovirus of oriental Armyworm, <i>Mythimna separata </i>using spindles from <i>Helicoverpa armigera</i> entomopoxvirus Authors: Chakraborty, M; Narayanan, K; Sivaprakash, M K Abstract: When the third instar larvae of <i>M. separata </i>were exposed to eight varying concentrations of polyhedral occlusion bodies (POB's) of nucleopolyhedrovirus of <i>M. separata </i>(MsNPV) ranging from 2.6×10¹ to 2.6×10⁸ POB's/ml, the percent mortality and incubation period ranged from 16-100% and 14 to 9 days respectively. On the other hand when the same third instar larvae of <i>M. separata </i>were exposed to only five varying concentration of POB's of MsNPV ranging from 2.6×10² to 2.6×10⁶, POB’s/ml along with a constant dose of entomopox viral spindles from <i>Helicoverpa armigera, </i>the per cent mortality ranged from 63 to 100% with reduction in incubation period from 7 to 4 days respectively. The enhancement index (log₁₀) of the virus was 2.76 or reduction of more than 500 times in LC₅₀. The ability and the mechanism of the spindles from <i>H. Armigera</i> entomopoxvirus to enhance the infectivity of MsNPV has been discussed. Page(s): 121-123 2004-01-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/23345 Title: Sex differences in oxidative stress induced by benzene in rats Authors: Verma, Yeshvandra; Rana, S V S Abstract: Role of sex differences on oxidative stress induced by benzene has been studied in liver, kidney and lungs of rat. It was observed that benzene administration enhanced lipid peroxidation in liver, kidney and lungs of rat, nevertheless, significant variations were recorded in male and female rats. Decrease of GSH and CYTP₄₅₀2El was higher in female rats than male rats except lungs. The results suggest that oxidative stress induced by benzene is higher in female rats. Page(s): 117-120 2004-01-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/23343 Title: Evaluation of immunomodulatory activity of Suvarnamalini vasant,^®a generic Ayurvedic herbomineral formulation Authors: Sangle, Vishwas; Darp, Medha; Nadkarni, Shailesh Abstract: Suvamamalini vasant-a generic Ayurvedic herbomineral preparation was studied for its immunomodulatory activity by 1) evaluating it's effect on phagocytic function of polymorphonuclear white blood cells of rats and 2) it's effect in <i>E. </i>coli-induced peritonitis in albino mice. Pretreatment of rats with Suvarnamalini vasant improved the phagocytic function of polymorphonuclear white blood cells and also protected mice against <i>E.coli</i>-induced peritonitis. The results indicate the potential of Suvarnamalini vasant as an immunomodulator. Page(s): 115-116 2004-01-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/23342 Title: Culture filtrate of <i>Lasiodiplodia theobromae </i>restricts the development of natural resistance in <i>Brassica nigra </i>plants Authors: Thakkar, Vasudev R; Subramanian, R B; Kothari, I L Abstract: Culture filtrate of <i>Lasiodiplodia theobromae </i>increased respiration rate, phenylalanine ammonia lyase activity, and levels of hydrogen peroxide, lipid peroxides and salicylic acid in <i>B. nigra </i>plants. Salicylic acid (SA) level increased for 1 hr of interaction and reduced later. Development of systemic acquired resistance (SAR) was found restricted in plants infected with <i>L. theobromae </i>due to deficiency of SA, which is a major signal for development of SAR. Exogenously supplied SA did develop resistance and plant death was delayed. It was hypothesized that deficiency of SA could be due to jasmonic acid produced by fungus that inhibits SA biosynthesis. Page(s): 111-114 2004-01-01T00:00:00Z