Chemical Composition of Uredospores of Wheat Stem Rust (Puccinia graminis tritici)

Prentice, Neville; Cuendet, L. S.

doi:10.1038/1741151a0

Cited by 14 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polyols have also been isolated from uredospores of Puccinia graminis tritici (Prentice and Guendet, 1954;Prentice et al, 1959), conidia of certain species of Aspergillus (Sumi, 1928;Horikoshi, Iida, and Ikeda, 1965), mycelium of Pyrenochaeta terrestris (WrightandLe Tourneau, 1965), as well, as from the marine lichen Lichina pygmaea (Pueyo, 1963). In addition, ungerminated spores of Fusarium solani assimilate glucose into mannitol (Cochrane et al, 1963).…”

Section: Results-polyols and Fruiting In S Commune-mentioning

confidence: 99%

Polyols in Schizophyllum Commune

Niederpruem

Hunt

1967

American J of Botany

View full text Add to dashboard Cite

Sugars and sugar alcohols present in extracts of the wood‐rotting mushroom Schizophyllum commune were identified by paper chromatography during fruiting, basidiospore germination, and growth of vegetative mycelium. Homokaryotic fruitbodies and dikaryotic fruits derived from several compatible matings of S. commune contained mannitol and arabitol. Basidiospores shed from dikaryotic fruits also contained mannitol and arabitol while the latter disappeared during spore germination. Vegetative mycelium (strain 699) contained glucose, fructose, mannitol and glycerol while these compounds as well as arabitol occurred in mycelium of strain 845. Polyols are not, therefore, associated exclusively with the sporulation process in S. commune.

show abstract

Section: Results-polyols and Fruiting In S Commune-mentioning

confidence: 99%

Polyols in Schizophyllum Commune

Niederpruem

Hunt

1967

American J of Botany

View full text Add to dashboard Cite

show abstract

“…Another report also confirmed the thermostable compounds of D-arabitol pentaacetate, D-mannose p-nitroanilide and 1,2,3,4,6α-D-glucose pentaacetate in Puccinia graminis var. tritici (Prentice and Cuendet, 1954). In vitro selection of fungal toxins with defensive molecules could lead to resisting the plant cells (Jayasankar and Gray, 2003).…”

Section: Effect Of Fungal Culture Filtrate On Plant Regeneration Via ...mentioning

confidence: 99%

Evaluation of rust disease tolerance and antioxidant enzyme activity from organogenesis and somatic embryogenesis in safflower (Carthamus tinctorius L.) cv. NARI-H-15

2022

ANRES

View full text Add to dashboard Cite

Importance of the work: Rust fungi (Puccinia carthami) play a critical role as major threats to diminishing safflower growth, quality, and productivity worldwide. Therefore, there is a need to develop and deploy rust-resistant safflower plants. Recently, in vitro selection of fungal toxins has been an effective tool for disease resistance in many crops. Objectives: The present study aimed to standardize an efficient protocol for rust-resistant safflower (Carthamus tinctorius L.) cv. NARI-H-15 plant development through organogenesis and embryogenesis processes using P. carthami fungal culture filtrates (FCFs) as selection pressure. Materials & Methods:In vitro FCF selection technique with organogenesis and somatic embryogenesis pathways were used for the experimental purpose to develop tolerant plants. Antioxidant enzyme and pathogenicity assay methods were applied to determine the level of tolerance against biotic stress. Results: For organogenesis, immature leaf calli cultured on 40% FCF-selected Murashige and Skoog (MS) medium induced 22.8% more shoot organogenesis and 16.6% more rooting than cotyledonary leaf calli. For somatic embryogenesis, cotyledon-derived embryogenic calli cultured on 40% FCF-selected MS medium produced 30% more somatic embryogenesis with 17% more germination than immature-leaf-derived embryogenic calli. Fully regenerated FCF-tolerant plants were transferred to pots containing a soil mixture, with 52% of plants survived under greenhouse conditions. Further experiments evaluated the reactive oxygen species scavenging enzymes in FCF-tolerant plants. Catalase activity decreased while peroxidase and superoxide dismutase activities were higher in the FCF-tolerant plants than for the control, based on quantitative and qualitative analysis. The pathogenicity results confirmed the disease resistance of the in vitrodeveloped FCF-treated plants. Main finding: Application of 40% FCF in tissue culture medium appears to be the reliable strategy for enhancing rust disease resistance in safflower cv. NARI-H-15 against P. carthami.

show abstract

“…These are at best very non-specific criteria, and all that is indicated is that an acidic polymer which does not seem to be cellulose may be involved. Graham's work (1957) and that of Prentice and Cuendet (1954) offer promise that in the basidiomycetes at least, the chemical nature of the spore walls will be analyzed. It is clear that before the phylogenetic significance of the structures studied can be evaluated, chemical comparisons must be made.…”

mentioning

confidence: 99%