+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Studies on the susceptibility of forage grasses to cereal smut fungi. III. Further data concerning Tilletia levis and T. tritici



Studies on the susceptibility of forage grasses to cereal smut fungi. III. Further data concerning Tilletia levis and T. tritici



Phytopath 29(7): 575-591



Inoculations of grasses in the tribe Hordeae with T. levis and T. tritici proved Agropyron inerme, A. spicatum, A. trichophorum, and Sitanion jubatum to be susceptible to these wheat smut fungi. 20 selections of crested wheatgrass (A. cristatum) and 16 of slender wheatgrass (A. pauciflorum) were inoculated with each of 8 races of T. levis and 11 of T. tritici. Some races (L-3 and L-6) of T. levis and T-2 and T-8 of (T. tritici) were several times as virulent on crested wheatgrass as the other races. On slender wheatgrass race T-10 of T. tritici was especially virulent. As a species, T. levis is more virulent on crested wheatgrass than is T. tritici, but on slender wheatgrass, T. tritici is the more virulent. Much greater differences were discovered in the reactions of the 36 selections of crested and slender wheatgrass to the smut races than in the relative virulence of the latter. Although none of the crested wheatgrass selections proved to be absolutely immune from T. levis, a few were highly resistant. One selection appeared immune from T. tritici. 8 of the 16 selections of slender wheatgrass appeared to be immune from all of the 8 races of T. levis, only 2 were moderately susceptible, and the remainder were more or less resistant. The same selections that were resistant to T. levis were, in general, also resistant to T. tritici. One selection exhibited more or less susceptibility to each of the 11 races of T. tritici. As a species, Agropyron cristatum is more susceptible to bunt of wheat than is A. pauciflorum. The mycelium of T. levis and T. tritici is perennial in perennial hosts. Of 90 spaced plants of Agropyron cristatum, A. pauciflorum, A. subsecundum, and Hordeum nodosum showing smut in 1935, 39 were in some manner freed of infection during the 2 years following, 7 died, and 44 still retained the disease in 1937. In general, it is thought that the duration of perennation of the mycelium of T. levis and T. tritici in their perennial hosts will be influenced by, (1) the degree of susceptibility of the host plant, (2) predisposition of the infected plants to drought or winter injury. Smut balls of T. tritici found in a sample of sweet-clover seed, but obviously from some grass, proved to be race T-8 of this smut species, on the basis of inoculations of winter- and spring-wheat differentials. It has been observed that the bunted grass plants resulting from infection with T. tritici tend to be more or less stunted.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 013518341

Download citation: RISBibTeXText


Related references

Studies of the susceptibility of forage grasses to cereal smut fungi. IV. Cross-inoculation experiments with Urocystis tritici, U. occulta, and U. agropyri. Phytopathology 33: 910-21, 1943

The susceptibility of certain wild grasses to Tilletia tritici and Tilletia levis. Phytopathology 26: 9, 876-886, 1936

The susceptibility of certain wild grasses to Tilletia tritici and T. levis. Phytopath 26(9): 876-886, 1936

Studies of the susceptibility of forage grasses to cereal smut fungi. 2. A preliminary report on Ustilago hordei and U. nigra. Phytopathology 29: 490-4, 1939

Breeding winter wheat for resistance to stinking smut. Tilletia levis and Tilletia tritici. Res. Bull. Nebr. Agric. Expt. Sta, 51: 22, 1930

Studies on the distribution and relative prevalence of Tilletia tritici and Tilletia levis in the south-east of La Pampa in 1932. Bol. Mens. Min. Agric. Nac, Buenos Aires 35: 1-3, 79-101, 1933

Toxicity of hard smut fungi of wheat (Tilletia levis) and barley (Ustilago hordei). II. In rabbits. Materialy 2. godichnoi nauchnoi Konferentsii, Vses. Inst. eksp. Vet, Moscow, 97-100, 1970

Effect of the source of origin of Tilletia tritici and T. levis spores on the susceptibility of Wheat to infection with bunt. II. Diseases of Cereal crops, Omsk, 4-14, 1932

Studies on physiologie specialization in Tilletia tritici and T. levis in China. Chinese J. Sci. Agric 1: 281-87, 1944

Reaction of cultivars and lines of wheat to 12 physiological races of tilletia levis and tilletia tritici. Rasteniev"dni Nauki 26(2): 97-100, 1989

Physiological specialization of the common bunt of wheat tilletia levis and tilletia tritici in bulgaria. Izvestiya na Botanicheskiya Institut B"lgarska Akademiya na Naukite 25: 181-197, 1974

The distribution and relative prevalence of Tilletia tritici and Tilletia levis (Wheat bunt) in the Guatrache district. Physis. B. Aires, 12: 41, 64-70, 1936

A contribution to the study of the biology of Tilletia tritici and Tilletia levis. Nuovi Ann. Agric 8: 1-2, 3-24, 1928

Studies on the effect of bunt, Tilletia tritici and Tilietia levis, on Wheat. Phytopath. Z, 10: 6, 614-631, 1937

Studies on physiologic specialization in Tilletia tritici and T. levis in the Pacific Northwest. Jour Agric Res 47(4): 193-213, 1933