Results 311 to 320 of about 821,546 (355)

Host-specificity, host-exclusivity, and host-recurrence in saprobic fungi

Mycological Research, 2001
Estimates of global fungal numbers rely heavily on the ratios of unique fungi to host plants. Evidence for host-specificity, which is basic to our understanding of host to fungus ratios, is therefore explored in this review. There is considerable evidence that some endophytes, pathogens and mycorrhizal fungi are host-specific. Host-specificity however,
Dequn Zhou, Kevin D. Hyde
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Experimental host specificity of Posthodiplostomum minimum

Experimental Parasitology, 1965
Abstract Parasite-free snails of the genus Physa were experimentally infected with the miracidia of Posthodiplostomum minimum, the metacercariae of which were originally obtained from bluegills, Lepomis macrochirus. Twelve species of fish representing 5 families (Cyprinidae, Cichlidae, Centrarchidae, Poeciliidae and Ictaluridae) were exposed to ...
J W, Avault, R O, Smitherman
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Specific-purpose broad-host-range vectors

Plasmid, 1985
Several plasmid derivatives of broad-host-range Inc P4 plasmid RSF1010 were constructed and characterized. Vector pAYC30 was constructed by insertion in vivo into the genome of RSF1010 the Hgr transposon Tn501, originating from the plasmid pVS1 of Pseudomonas aeruginosa. Plasmids with inserts of PstI or SacI fragments may be selected by inactivation of
Y D, Tsygankov, A Y, Chistoserdov
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Parasitism, Host Species Specificity, and Gene-Specific Host Cell Death

1991
The development of biological control agents for the control of weeds is only in its infancy, and its success as an applied science will parallel and be limited by progress made in our understanding of the basic genetic and pathological sciences. The better our understanding of the structure, function, and expression of genes affecting plant-microbe ...
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Mycoplasma host specificity: Fact or fiction?

The Veterinary Journal, 2005
Bacteria of the genus Mycoplasma are the smallest organisms known to be capable of self-replication. They only occur in association with animal host cells on which they are dependant for many pre-formed nutrients since they lack many of the metabolic pathways associated with energy production and the synthesis of cell components found in other species ...
D G, Pitcher, R A J, Nicholas
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Intermediate host specificity in Schistosoma mansoni

Experimental Parasitology, 1976
Abstract Miracidia of Schistosoma mansoni penetrate into many kinds of snails, but development of normal sporocysts takes place only in certain species of Biomphalaria . Different populations of this snail vary greatly in laboratory infection rates with S. mansoni originating from diverse geographic localities.
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The host specificity of monogenetic trematodes

Experimental Parasitology, 1957
Abstract The host-parasite relations of the 75 species of Monogenea in the present collection and many more from the literature have been considered and the following conclusions reached: 1. 1. The species studied, and probably most other Monogenea, are highly host-specific. 2. 2.
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Host specificity and speciation

1985
Most aphids are autoecious (Figure 3.1), living on one or a few species of a particular genus of plants (Eastop, 1973). About 10% are heteroecious (Figure 3.1), spending autumn, winter and spring on a primary host plant, and the summer on a secondary host plant(s), which is rarely closely related to the primary host. For example the primary host of the
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Host Range and Host Specificity of Sarcocystis

Zentralblatt für Bakteriologie, Mikrobiologie und Hygiene. 1. Abt. Originale. A, Medizinische Mikrobiologie, Infektionskrankheiten und Parasitologie, 1981
W, Frank, U, Häfner
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Host-Specificity and Specificity of Animal Parasites

The American Journal of Tropical Medicine, 1933
Summary The dual conception that a particular parasite species is limited to a single host species and that a particular host species may harbor but one species of a particular general group is obsolete. Selected examples from among the protozoa, worms, and arthropods support the two following generalizations: (1) A particular parasite will develop ...
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