Results 171 to 180 of about 3,596 (218)
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Mycologia, 1983
Isolated cell walls obtained from young (1 da) and mature (5 da) cultures of Choanephora cucurbitarum, susceptible and resistant, respectively, to the biotrophic mycoparasite, Piptocephalis virginiana, were analyzed by microchemical and electron microscopic techniques.
M S Manocha
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Isolated cell walls obtained from young (1 da) and mature (5 da) cultures of Choanephora cucurbitarum, susceptible and resistant, respectively, to the biotrophic mycoparasite, Piptocephalis virginiana, were analyzed by microchemical and electron microscopic techniques.
M S Manocha
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Host–parasite relations in mycoparasite. I. Fine structure of host, parasite, and their interface
Canadian Journal of Botany, 1971A mycoparasite, Piptocephalis virginiana, shows resemblance to other fungal parasites of higher plants in the fine structure of hyphae and haustoria. The mode of penetration of the host cell, Choanephora cucurbitarum, probably involves mechanical forces. Although the presence of a cell wall degrading enzyme was not detected by conventional techniques,
M. S. Manocha, K. Y. Lee
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Interaction of Viruses and Bacteria in Host-Parasite Relations
New England Journal of Medicine, 1972IT is apparent that we become colonized (or "infected") with only a small fraction of the many micro-organisms to which we are exposed, and that a still smaller percentage of such host-parasite interaction ever results in disease. The factors that determine "who amongst us are chosen" remain poorly defined.
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The physiology of host-parasite relations
The Botanical Review, 1936In reviewing the subject of parasitism from the physiological standpoint, little useful purpose would be served by confining attention to the literature of the last few years. References to the physiological relations of host and parasite are often of a casual nature, made in the course of investigations which had some other object in view, and even if
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Co-evolution in host-parasite relations
Die Kulturpflanze, 1988The growth of interest recently in co-evolution of hosts and their parasites arises partly from the hope that a better understanding of the processes involved should provide new insights into disease control in agriculture. Unfortunately, examination of natural systems makes it immediately clear that they are often complex and that the host-parasite ...
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The Physiology and Host-Parasite Relations of the Rusts
Annual Review of Phytopathology, 1963exaly +2 more sources
Tijdschrift voor diergeneeskunde, 1987
Our current knowledge of the host-parasite relationship is reviewed as part of a series entitled 'Papers of yesterday and today'. A retrospective view is taken of a paper written in 1898 by Professor H. J. Hamburger, entitled 'The Current Point of View of the Theory of Natural Immunity', which is also published in a slightly abridged version in this ...
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Our current knowledge of the host-parasite relationship is reviewed as part of a series entitled 'Papers of yesterday and today'. A retrospective view is taken of a paper written in 1898 by Professor H. J. Hamburger, entitled 'The Current Point of View of the Theory of Natural Immunity', which is also published in a slightly abridged version in this ...
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No Experimental Evidence for Host Ant Related Oviposition in a Parasitic Butterfly
Journal of Insect Behavior, 2006The ability of adult butterflies of the genus Maculinea to locate their host ants prior to oviposition has been the subject of much discussion. We studied the egg laying behavior of the dusky large blue Maculinea nausithous whose larvae parasitize colonies of the ant Myrmica rubra. Flowerheads of the initial food plant were sprinkled with soil from ant
Musche, M. +3 more
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Host-Parasite Relations in Spot Anthracnose of Desmodium
Mycologia, 1969but not spongy parenchyma is invaded by hyphae when the pathogen enters a leaf via the upper epidermis; the reverse is true when it penetrates from the lower side. Only host cells close to hyphae show response. Mesophyll cells in the invaded region exhibit loss of chloroplasts, hyperplasia and hypertrophy; distinctive patterns of cell arrangement are ...
D. L. Mason, M. P. Backus
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Effects of ozone on host-parasite relations
2010Investigations of the effects of the air pollutant ozone on the growth of bush bean (Phaseolus vulgaris L. cv Pure Gold Wax) were undertaken to determine their nature and the modifications in growth responses caused by interactions of the pollutant with concurrent development of two plant pathogens, rust (Uromyces phaseoli [Rebent.] Wint.) and halo ...
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