198,092 research outputs found
Combating stem and leaf rust of wheat: Historical perspective, impacts, and lessons learned
No full textmillions fed, food security, wheat rust, stem rust, leaf rust, Norman Borlaug,
Personal Papers (MS 80-0002)
No full textCopy of letter from Harris Leon Kempner to Manley P. Rust discussing an application for an automobile
Sources of resistance to yellow rust and stem rust in wheat-alien introgressions
No full textWheat is the staple food and the main source of caloric intake in most developing countries, and thereby an important source in order to maintain food security for the growing populations in those countries. Stem rust Puccinia graminis f. sp. tritici, and yellow rust P. striiformis f. sp. tritici of wheat continues to cause severe damage locally and globally, thereby contributing to food insecurity. In this paper biology and taxonomy of stem rust and yellow rust, breeding for resistance, utilization of resistance sources from different gene pools, molecular characterization and genetic dissection of resistance to rusts are discussed
Personal Papers (MS 80-0002)
No full textLetter from Harris Leon Kempner to Manley P. Rust discussing an application for an automobile
rust-bio/rust-htslib: Version 0.13.0 of Rust-Htslib
No full text<p>Various minor API improvements. See <a href="https://github.com/rust-bio/rust-htslib/blob/master/CHANGELOG.md">changelog</a>.</p>
rust-bio/rust-htslib: Version 0.12.0 of Rust-Htslib
No full text<p>This release improves the CIGAR API and adds seek/tell support (see <a href="https://github.com/rust-bio/rust-htslib/blob/master/CHANGELOG.md">changelog</a>).</p>
Morphology of the rust fungus Puccinia boroniae revisited
No full textPuccinia boroniae Henns. is a rust fungus endemic to Australia, infecting various Boronia spp. This study describes and illustrates, using light and scanning electron microscopy, the telial stage, teliospore germination and basidiospore production of specimens collected from commercial Boronia plantations in Western Australia. Unusual formation of a single basidiospore per germinating teliospore, and the pycnial stage, observed on Boronia megastigma leaves, are reported for the first time for P. boroniae
Morphology of the microcyclic rust fungus, Puccina boroniae, in Western Australia
No full textBoronia is an aromatic Australian native wildflower. Several species endemic to Western Australia are commercially cultivated for the cut flower market.
Puccinia boroniae is an important rust pathogen of the two most common Boronia species grown commercially, B. heterophylla and B. megastigma, and was first described by Hennings in 1903., Only the telial stage has been observed in the field and recorded. P. boroniae has been described as a microcyclic rust fungus with teliospores able to germinate without a period of dormancy, however no reference to germination structures or host inoculations confirming this have been published.
The objectives of this study were to provide a current and detailed morphological description of the various spore stages observed in the field, to describe the teliospore germination structures and basidiospores, and to confirm the lifecyc1e of P.boroniae
rust-bio/rust-bio-tools: Version 0.1.3 of Rust-Bio-Tools
No full text<p>This release updates to the latest Rust-Htslib.</p>
Interrelations between citrus rust mite, Hirsutella thompsonii and greasy spot on citrus in Surinam
No full textCounts of citrus rust mite (Phyllocoptruta oleivora (Ashm.)) on leaves and fruit of citrus rose to a peak in the two dry seasons, the build up taking 4-5 weeks. It then decreased partly through infection by the entomogenous fungus Hirsutellathompsonii Fisher and partly through a decline in feed quality. The low counts in the wet seasons were associated with rain rather than humidity, temperature or infections by H. thompsonii. Spraying with suspensions of fragmented mycelium of H. thompsonii (mass concentration 0.5-1.0 g litre -1) prevented the build up of citrus rust mite.The severity of greasy spot (Stenella sp.) was positively correlated with counts of citrus rust mite. Defoliation of citrus trees after greasy spot infection was associated with high counts of mite.Control of citrus rust mite (with chlorobenzilate: mass concentration of a.i. 2 g litre -1at 500 litre ha -1) was warranted when 25% of fruit or 15% of leaves bore at least one mite per lens field (1.5 cm 2). Greasy spot could be controlled by preventing build-ups of citrus rust mite
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