Der Neue Hausarzt : Ein treuer Rathgeber bei allen erdenklichen Krankheitsvorfällen in jedem Alter : vorzüglich für diejenigen, welche an Magenübel, fehlerhafter Verdauung, Verschleimung, Schnupfen, Husten, Hypochondrie, Gliederreißen, Krämpfe, Fieber, Hämorrhoiden und Hautkrankheiten leiden : nach Hufeland, Rust, Richter und Tissot : nebst einer Hausapotheke

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The role of haustoria in sugar supply during infection of broad bean by the rust fungus Uromyces fabae

Biotrophic plant pathogenic fungi differentiate specialized infection structures within the living cells of their host plants. These haustoria have been linked to nutrient uptake ever since their discovery. We have for the first time to our knowledge shown that the flow of sugars from the host Vicia faba to the rust fungus Uromyces fabae seems to occur largely through the haustorial complex. One of the most abundantly expressed genes in rust haustoria, the expression of which is negligible in other fungal structures, codes for a hexose transporter. Functional expression of the gene termed HXT1 in Saccharomyces cerevisiae and Xenopus laevis oocytes assigned a substrate specificity for d-glucose and d-fructose and indicated a proton symport mechanism. Abs against HXT1p exclusively labeled haustoria in immunofluorescence microscopy and the haustorial plasma membrane in electron microscopy. These results suggest that the fungus concentrates this transporter in haustoria to take advantage of a specialized compartment of the haustorial complex. The extrahaustorial matrix, delimited by the plasma membranes of both host and parasite, constitutes a newly formed apoplastic compartment with qualities distinct from those of the bulk apoplast. This organization might facilitate the competition of the parasite with natural sink organs of the host.

Detection of a major gene for resistance to fusiform rust disease in loblolly pine by genomic mapping.

Genomic mapping has been used to identify a region of the host genome that determines resistance to fusiform rust disease in loblolly pine where no discrete, simply inherited resistance factors had been previously found by conventional genetic analysis over four decades. A resistance locus, behaving as a single dominant gene, was mapped by association with genetic markers, even though the disease phenotype deviated from the expected Mendelian ratio. The complexity of forest pathosystems and the limitations of genetic analysis, based solely on phenotype, had led to an assumption that effective long-term disease resistance in trees should be polygenic. However, our data show that effective long-term resistance can be obtained from a single qualitative resistance gene, despite the presence of virulence in the pathogen population. Therefore, disease resistance in this endemic coevolved forest pathosystem is not exclusively polygenic. Genomic mapping now provides a powerful tool for characterizing the genetic basis of host pathogen interactions in forest trees and other undomesticated, organisms, where conventional genetic analysis often is limited or not feasible.

Contrasting complexity of two rust resistance loci in flax.

DNA probes from the L6 rust resistance gene of flax (Linum usitatissimum) hybridize to resistance genes at the unlinked M locus, indicating sequence similarities between genes at the two loci. Genetic and molecular data indicate that the L locus is simple and contains a single gene with 13 alleles and that the M locus is complex and contains a tandem array of genes of similar sequence. Thus the evolution of these two related loci has been different. The consequence of the contrasting structures of the L and M loci on the evolution of different rust resistance specificities can now be investigated at the molecular level

Green rust;

Mode of access: Internet.

Fighting rust with sublimed blue lead; an assembly of facts concerning the properties and uses of sublimed blue lead.

Mode of access: Internet.

Moth and rust : together with Geoffrey's wife, and The pitfall /

Mode of access: Internet.

Research in gum, dust and rust filtering.

cover-title

Rust, smut, mildew, & mould. An introduction to the study of microscopic Fungi.

Error in paging: 262 numbered 62.

Rust; die Geschichte eines Lebens ...

Mode of access: Internet.

Ad locum M. Terentii Varronis de Re rust.,lib. ii.c.i.n.7.de nominibus Romanorum brutisonis.

Mode of access: Internet.

A short account of the cause of the disease in corn, called by farmers the blight, the mildew, and the rust.

Mode of access: Internet.

Verzoening en rust; [een vervolg of Menschenhaat en Berouw:] tooneelspel.

Mode of access: Internet.

Blister rust news.

Mode of access: Internet.

Virulence, aggressiveness, evolution, and distribution of races of Puccinia striiformis (the cause of stripe rust of wheat) in North America, 1968-87.

"Issued February 1992"--P. [2] of cover.