Showing papers by "Jawaharlal Nehru University published in 1976"
68 citations
TL;DR: Cycloheximide (CHI) enhanced the peroxidase activity, both in dark-grown and FR-irradiated seedlings, however, the kinetics of enhancement of peroxIDase activity by continuous FR light and CHI is different.
35 citations
TL;DR: A brief irradiation of red light was as effective as continuous white light and benzyladenine in arresting the senescence of detached barley leaves and red-far-red antagonistic effect suggests the involvement of phytochrome.
28 citations
TL;DR: The red shift coincides in time with the rapid loss in the rates of photoreduction of dichlorophenol indophenol (DCPIP) with diphenylcarbazide (DPC) as electron donor and this indicates that dark senescence brings about some structural alterations of chloroplasts which affect their function.
15 citations
TL;DR: It is shown that both the immediate and post-irradiation oxygen effects in barley seeds decrease in magnitude in the presence of potassium permanganate and caffeine, implying that these two types of oxygen effect have features in common.
Abstract: SummaryWe show that both the immediate and post-irradiation oxygen effects in barley seeds decrease in magnitude in the presence of potassium permanganate and caffeine. This implies that these two types of oxygen effect have features in common. With the removal of the radiation-induced oxygen-sensitive sites, by anoxic hydration, caffeine potentiates the oxygen-independent component of damage, in seeds irradiated in a dry or pre-soaked state. Potassium permanganate, on the other hand, enhances the anoxic radiation damage only in seeds irradiated in a dry state. The possible mode of action of KMnO4 and caffeine in barley seeds is discussed.
14 citations
TL;DR: It was found that, under the conditions tested so far, haploid tissue differentiates far more easily than the diploid tissue.
12 citations
12 citations
TL;DR: Peroxidase activity of detached barley leaves incubated in dark decreased with age, however, the decline was arrested appreciably on treatment of the leaves with continuous light and kinetin.
7 citations
TL;DR: In this article, 27 samples of suspended sediments collected on Millipore filters from the St Lawrence estuary were directly analysed for Si, Al, Ca, Mg, Na, K, Fe, Ti, Mn, Ni, Co, Cu, Cr and Zn by X-ray fluorescence using standards prepared from suspended matter collected by continuous flow centrifugation.
6 citations
TL;DR: This paper attempts to analyse the effect of gamma radiation and the presence of histones in the form of nucleohistones (DNH) on the modes of ligand (Proflavine, Pf) binding to DNH.
Abstract: The effect of gamma-rays on the binding of proflavine and acridine orange to DNA was investigated by spectrophotometry. The effect of irradiation was observed on the buffered solutions of the free dye and free DNA. A dose of about 35 krad caused a hyperchromicity of 30-40 per cent to the DNA peak at 258 nm, while the same dose introduced a hypochromic effect to the monomer peaks of the dyes by 30 per cent. This implied that gamma-rays have an effect of decreasing the monomer concentration of free-day molecules in solution. From the results, we conclude that more dye is bound to the changed conformation of dye-bound DNA on irradiation. Scratchard-binding isotherms drawn for the unirradiated and irradiated complexes of Pf-DNA showed interesting differences. Similar isotherms could not be obtained for the acridine orange-DNA system.
4 citations
TL;DR: Two specific rate transforms for an autocatalytic growth process G ( x ) =−tan( α log x ) and G( x )=−tanh(α log X ) have been proposed in this article.
Abstract: Two specific rate transforms for an autocatalytic growth process G ( x )=−tan( α log x ) and G ( x )=−tanh( α log x ) have been proposed. Both deterministic and stochastic solutions are given. The characteristic behavior of the growth, which periodically increases and declines, has been described by considering only one half period. Exact analytic solution of the equivalent Schrodinger equation for the Fokker-Planck equation of the problem has been obtained and expression for the probability distribution function is deduced. Finally, a possible biological application of the model has been given.
TL;DR: In this paper, the authors identified eight types of agrarian organizations in rural Kerala and found that there exists three types of objective linkages (common leadership and clientele, sponsorship and formal relations) and two types of subjective linkages between them.
Abstract: Summary
While the eight types of agrarian organizations we identified in rural Kerala have a measure of independence, there exists three types of objective linkages (common leadership and clientele, sponsorship and formal relations) and two types of subjective linkages (opposition and co-operation) between them. In evolving a strategy of building agrarian organizations in Indian rural society characterised by deep-rooted traditional bonds and extreme inequalities, it seems to be necessary to transform the prevalent primordial collectivism into instrumental collectivism. It is also necessary to forge a meaningful linkage between economic organizations (e.g. co-operatives) and political organizations (e.g. labour unions). A fusion of the instrumental collectivism of co-operatives and the ideological collectivism of unions is a pre-requisite so that the economic gains secured by the rural poor through political struggles can be consolidated through co-operatives by promoting habits of thrift, savings etc. Such a structural linkage may help in solving several problems such as inadequate internal financial resources, scarcity of altruistic leadership, widespread corruption etc., faced by these organizations at present.
Resume
Bien que les huit types ?organisations agraires identifyed en Kerala rurale aient une certaine independence, il existe entre eux trois types de liaisons objectives (leadership et clientele communs, initiateurs et relations formales) et deux types de liaisons subjectives (opposition et cooperation). La societe rurale indienne est characterisee par des liens traditionels aux racines profondes et par des inegalites extremes. Pour developper une strategie de formation ?organisations agraires, il semble necessaire de transformer le collectivisme primordial prevalent en un collectivisme instrumental. II est aussi necessaire de forger une connection rationelle entre organisations economiques (par exemple cooperatives) et politiques (par exemple syndicats) pour consolider les gains acquis par les pauvres ruraux par une participation organisatoire. La fusion du collectivisme instrumental des cooperatives et du collectivisme ideologique des syndicats ouvriers est une condition prealable, si ľon veut consolider les gains economiques obtenus par les couches rurales pauvres par des luttes politiques en encourageant des habitudes ?industrie et ?epargne dans les cooperatives. Une telle liaison structurelle pourrait aider a resoudre plusieurs problemes que ces organisations facent a present, comme par exemple ressources financiaires internes inadequates, manque de leaders desinteiessds, corruption epandue.
Ces gains peuvent etre consoledes par des cooperatives.
Zusammenfassung
Die 8 Typen agrarischer Organisational, die im landlichen Kerala festgestellt werden konnten, haben ein gewisses Maβ von Unabhangigkeit. Es existieren aber dreierlei objektive Bindungen (gemeinsame Fuhrung und Klientel, Initiatoren und formale Beziehungen) und zwei Typen subjektiver Bindungen (Opposition und Kooperation) zwischen diesen. Die landliche Gesellschaft Indiens ist charakterisiert durch tiefverwurzelte traditionelle Bindungen und extreme Ungleich-heiten. Bei der Erarbeitung einer Strategic fur den Aufbau agrarischer Organisationen scheint es notwendig, den vorherrschenden primor-dialen Kollektivismus in einen instrumentalen Kollektivismus umzu-formen. Es ist auch notwendig, eine sinnvolle Verbindung zwischen okonomischen Organisationen (z.B. Genossenschaften) und politi-schen Organisationen (z.B. Gewerkschaften) zu Schmieden. Eine Ver-schmelzung des instrumentalen Kollektivismus der Genossenschaften und des ideologischen Kollektivismus der Gewerkschaften ist eine Voraussetzung, um die okonomischen Gewinne zu sichern, die die Dorfarmut durch politische Kampfe errungen hat. Diese konnen konsolidiert werden durch Genossenschaften, die die Gewohnheiten des Sparens fordern. Eine solche strukturelle Verbindung konnte helfen, mehrere Probleme zu losen, wie z.B. den Mangel an angemes-senen internen Geldmitteln, die Knappheit an altruistischen Fuhrern, die weitverbreitete Korruption usw., denen diese Organisationen gegenwartig gegenuberstehen.
TL;DR: The work reported here shows a specific effect of kinetin in enhancing LAT activity in pea buds and indicating its possible mode of action at the translational level.
Abstract: The work reported here shows a specific effect of kinetin in enhancing LAT activity in pea buds and indicating its possible mode of action at the translational level. Other hormones tested did not show any appreciable effect on the enzyme activity.