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Now showing items 1-20 of 658

Impact of heavy metals on glutamine synthetase and nitrogenase activity in Nostoc calcicola.

Verma, Sanjay Kumar (J-Stage, 1987)
Heavy metal Uptake in the Cynobacterium Nostoc calcicola.

Verma, Sanjay Kumar (IBS, 1988)

The literature on the inhibitory effect of copper on growth (Les &Walker, 1984), photosynthesis (Shiol et al, 1978) and nitrogen fixation (Rai & Raizada, 1985) in algae and higher plants is impressive. Heavy metals inhibit ...
Copper uptake by free and immobilized cyanobacterium

Verma, Sanjay Kumar (OUP, 1989)

Copper uptake in free and immobilized cells of the cyanobacterium Nostoc calcicola has been examined. The immobilized cells invariably maintained a higher profile of Cu intake rate (12.7 nmol mg−1 protein min−1) over the ...
Factors regulating copper uptake in a cyanobacterium

Verma, Sanjay Kumar (Springer, 1990)

Copper uptake in the diazotrophic cyanobacteriumNostoc calcicola was found to be typically biphasic, comprising rapid binding of the cations to the cell wall (during the first 10 min) followed by the subsequent ...
Genetic transformation of glutamine auxotrophy to prototrophy in the cyanobacterium Nostoc muscorum

Verma, Sanjay Kumar (Springer, 1990)
Evidence for energy-dependent copper efflux as a mechanism of Cu2+ resistance in the cyanobacterium Nostoc calcicola

Verma, Sanjay Kumar (OUP, 1991)

Wild-type Nostoc calcicola carried out oxygenic photosynthesis extremely sensitive to copper. A Cu(2+)-resistant mutant (Cu-R1) of the cyanobacterium grew normally at high concentrations of Cu2+. Its ability to grow under ...
pH regulation of growth, photosynthesis, glutamine synthetase activity and micronutrient transport in the cyanobacterium Hapalosiphon welwitschii

Verma, Sanjay Kumar (OUP, 1992)

Optima for growth, oxygenic photosynthesis and glutamine synthetase activity occurred at pH 10, thus suggesting that the cyanobacterium Hapalosiphon welwitschii is an alkalophile. It produced a Cu-Zn efflux system at pH 9 ...
Glutamate inhibition of aerobic N2-fixation and its regulation by nitrate and ammonium in cyanobacterium Nostoc muscorum

Verma, Sanjay Kumar (NISCAIR, 1992)
Copper toxicity and phosphate utilization in the cyanobacterium Nostoc calcicola

Verma, Sanjay Kumar (Springer, 1993)
Inhibition of mitochondrial electron transport is the prime cause behind proline accumulation during mineral deficiency in Oryza sativa

Bhagavatula, Vani (Springer, 1993)

The concentration of proline in shoots of rice (Oryza sativa) seedlings raised in distilled water was about 3.3 times higher than in the seedlings raised in modified B5 medium. The shoots of seedlings raised in B5 medium ...
Multiple metal resistance in the cyanobacterium Nostoc muscorum

Verma, Sanjay Kumar (Springer, 1995)
Effect of short-term heat treatment of rice seedlings on sensitivity of thylakoid membranes to photoinhibition

Bhagavatula, Vani (Springer, 1996)

The after-effects of 24 h high temperature (35 or 45 ~ treatment on the photochemical activities and photooxidative lipid peroxidation, subsequent to their irradiation were studied in 7-d-old etiolated rice (Oryza sativa) ...
Alteration in NAD+/NADH ratio regulates salt stress induced proline accumulation in Vigna radiata.

Bhagavatula, Vani (NAS, 1996)

Five-day-old vigna radiata seedlings exposed to NaCI stress induced a significant enhancement in proline levels accompanied by reduction in growth
Effect of elevated temperature on natural killer cell and antibody-dependent cellular eytoboxieity

Dubey, Uma S. (HALOCYNTHIA ASSOCIATION, 1998)

Several studies have shown a direct correlation between temperature and immune response. The effect of elevated temperature on cytotoxic effector functions is not well known. In the present study we have investigated the ...
Structure-function correlation during the etioplast-chloroplast transition in cucumber cotyledonary leaves

Bhagavatula, Vani (IJPR, 1998)

We studied the development of chloroplasts from etioplasts in the cotyledonary leaves of 4-d-old dark-grown cucumber (Cucumis sativus) seedlings after irradiation (20 μmol m-2 s-1). Upon irradiation, the triggering of ...
Exploring the Structural Repertoire of Guanine-Rich DNA Sequences: Computer Modelling Studies

Chowdhury, Shibasish (Elsiever, 1999)
Differential sensitivities of photofunctions of thylakoid membranes to in vivo elevated temperature stress in Oryza sativa (var. Kalinga III) seedlings

Bhagavatula, Vani (Springer, 1999)
Heat stress on rice leaves probed by the fluorescence transient OKJIP.

Bhagavatula, Vani (Springer, 1999)
Release of iron from ferritin by metabolites of benzene and superoxide radical generating agents

Sharma, Pankaj (Elsiever, 2001)

The release of iron from ferritin in the presence of benzene metabolites, viz. phenol (P), catechol (CT), hydroquinone (HQ) and superoxide radical generating compounds, viz. pyrogallol (PL), phloroglucinol (PG), phenylhydrazine ...
Molecular Databases

Verma, Sanjay Kumar (EMI, 2001)

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