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Characterization of high temperature induced stress impairments in thylakoids of rice seedlings

Bhagavatula, Vani (NISCAIR, 2001-08)

Exposure o f isolated thylakoids or intact plants to elevated temperature is known to inhibit photosynthesis at multiple sites. We have investigated the effect of elevated temperature (40°C) for 24 hr in dark on rice ...

Elevated Temperature Treatment Induced Alteration in Thylakoid Membrane Organization and Energy Distribution between the Two Photosystems in Pisum sativum

Bhagavatula, Vani (Degruyter, 2014)

High temperature causes changes in the struc-tural organization of thylakoid membranes affect-ing excitation energy distribution as the well asrates of photochemical reactions. Thus, high tem-perature causes ...

Effect of nitrate availability on expression of multi sensor histidine kinase gene in Spirulina platensis PCC 7345

Bhagavatula, Vani (Springer, 2011)

Addition of nitrate (NO −3 ) to a suspension of NO −3 -depleted Spirulina platensis PCC 7345 restored back the PSII reaction centre efficiency. Using RAPD/RT-PCR differential display, we have detected the upregulation of ...

Nitrogen acquisition in cyanobacteria

Bhagavatula, Vani (LAMBERT Academic Publishing, 2011)

Interplay between calcium influx and nitrate assimilation in Spirulina platensis

Bhagavatula, Vani (Academic Journals, 2011)

Nitrate assimilation and its interplay with Ca2+ ion transport has been studied in Spirulina platensis PCC 7345, an alkaliphilic filamentous cyanobacterium. We have used verapamil, a calcium-channel blocker and sodium ...

Lipase Immobilization Techniques for Biodiesel Production: An Overview

Bhagavatula, Vani; Mehrotra, Rajesh; Mehrotra, Sandhya (IBIMA, 2014-05-13)

The growing energy needs and depleting fuel sources compel us to look towards production of biodiesel, an appropriate alternative. The industrially used chemical catalysis process is beset with problems that enzymatic ...

The Role of Cyanobacteria in Agriculture

Bhagavatula, Vani; Chowdhury, Shibasish (Krishi Sanskriti Publications, 2015)

Microorganisms offer a pool of properties which could be utilized for the benefit of the ecosystem and mankind. They have always played the central role in evolution and shaped out the existing life on earth. The population ...

Analysis of seven putative Na+/H+ antiporters of Arthrospira platensis NIES-39 using transcription profiling and in silico studies: an indication towards alkaline pH acclimation

Bhagavatula, Vani; Chowdhury, Shibasish (Springer, 2019-09)

Na+/H+ antiporters mediated pH regulation is one of the known mechanism(s), which advocates a possible role of the antiporters in the alkaline pH tolerance of Arthrospira platensis NIES-39. Seven putative Na+/H+ antiporters ...

Machine-vision based handheld embedded system to extract quality parameters of citrus cultivars

Bhagavatula, Vani (USDA, 2020)

This manuscript introduces a handheld machine vision based system design that is capable of standalone operation using touch screen based user interface and also can operate through smartphone based android app. System ...

Handheld, smartphone based spectrometer for rapid and nondestructive testing of citrus cultivars

Bhagavatula, Vani (Springer, 2020-10-14)

Optimum maturity and ripeness at the time of harvest is highly important to maintain the nutritional parameters of fruits. Maturity and ripeness of most of the fruit samples depends on various physiochemical parameters ...

Counteracting Microbes

Dubey, Uma S. (‎ Nova Science Publishers, 2013)

An SIR Model with Nonlinear Incidence Rate and Holling Type III Treatment Rate

Dubey, Uma S.; Dubey, Balram (Digital Science, 2016-12)

We propose a mathematical model with nonlinear incidence rate and treatment rate to study the dynamics of susceptible-infected-recovered population. We consider nonlinear incidence rate as Crowley-Martin type and nonlinear ...

OPTIMAL CONTROL FOR THERAPEUTIC DRUG TREATMENT ON A DELAYED MODEL INCORPORATING IMMUNE RESPONSE

Dubey, Uma S.; Dubey, Balram (World Scientific, 2015)

Millions of people get infected every year by viral pathogens. Newly emergent diseases such as Ebola, Swine-flu, HIV/AIDS, etc. are spreading worldwide at an alarming rate. We introduced a delayed mathematical model with ...

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 ...

A MATHEMATICAL MODEL FOR THE EFFECT OF TOXICANT ON THE IMMUNE SYSTEM

Dubey, Uma S.; Dubey, Balram (World Scientific, 2007)

In this paper, a nonlinear mathematical model is proposed and analyzed to study the effect of environmental toxicant on the immune response of the body. Criteria for local stability, instability and global stability are ...

MODELING THE INTERACTION BETWEEN AVASCULAR CANCEROUS CELLS AND ACQUIRED IMMUNE RESPONSE

Dubey, Uma S.; Dubey, Balram (World Scientific, 2008)

This paper deals with the interaction between dispersed cancer cells and the major populations of the immune system, namely, the T helper cells, T Cytotoxic cells, B cells, and antibodies produced. The system is described ...

MODELING EFFECTS OF TOXICANT ON UNINFECTED CELLS, INFECTED CELLS AND IMMUNE RESPONSE IN THE PRESENCE OF VIRUS

Dubey, Uma S.; Dubey, Balram (World Scientific, 2011)

In this paper, two mathematical models are proposed and analyzed. The first one deals with the interaction of uninfected cells, infected cells, viruses and immune response within humans. The second one deals with the effects ...

MODELING AND ANALYSIS OF AN SEIR MODEL WITH DIFFERENT TYPES OF NONLINEAR TREATMENT RATES

Dubey, Uma S.; Dubey, Balram (World Scientific, 2013)

In this study, an SEIR epidemic model is proposed for treatment of infectives considering the development of acquired immunity in recovered individuals. We employed two different types of treatment functions. Stability ...

Dynamics of an SIR Model with Nonlinear Incidence and Treatment Rate

Dubey, Uma S.; Dubey, Balram (AAM, 2015-12)

In this paper, global dynamics of an SIR model are investigated in which the incidence rate is being considered as Beddington-DeAngelis type and the treatment rate as Holling type II (saturated). Analytical study of the ...

Evolution Of Classification Of Bladder (Urothelial) Cancer Bladder Cancer Classification

Dubey, Uma S. (NICPD, 2015)

The classification of bladder tumors has undergone a change over the years but still has not achieved success in predicting the behavior. The correct cellular classification of a tumor helps initiate appropriate treatment. ...

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