The Fine Structure of Septa and Haustoria of Cronartium quercuum Formae Speciales Fusiforme on Quercus rubra

Khan, Saeed R.; Kimbrough, James W.; Webb, Patricia G.

doi:10.2307/3792868

Cited by 5 publications

(10 citation statements)

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“…A similar appearance of the matrix has been observed only in Cronartium quercuum f. sp. fusiforme (GRAY et al 1982;KHAN et al 1982).…”

Section: Discussionmentioning

confidence: 99%

“…mother cell wall, as it appears in the micrographs of C. quercuum f. sp. fusiforme (GRAY et al 1982;KHAN et al 1982) and of Puccinia podophylli Schw. (BoRLAND and MIMs 1980).…”

Section: Discussionmentioning

confidence: 99%

“…X 32,600. ( LONGO and NALDINI LoNGO 1972;LITTLEFIELD and HEATH 1979;BoRLAND and MIMs 1980;PRING 1980;AL-KHESRAJI and LosEL 1981;CHONG et al 1981;GRAY et al 1982;KHAN et al 1982;CoFFEY and ALLEN 1983) and that is: differentiated haustoria! mother cell, restricted penetration peg, haustorium in which neck and body can be identified, neck-band evident.…”

Section: Discussionmentioning

confidence: 99%

“…In these species theM-haustorium was considered. The only observations reported on D-haustorium are those of GRAY et al (1982) and KHAN et al (1982) on the haustorium of C. quercuum f. sp. fusiforme.…”

Section: Introductionmentioning

confidence: 94%

“…wall with the inner layer of the haustoria! mother cell wall has been frequently reported for D-haustoria (BoRLAND and MIMs 1980;CHONG et al 1981;GRAY et al 1982;KHAN et al 1982;CoFFEY and ALLEN 1983). Indeed, in Puccinia graminis Pers.…”

Section: Niels (Al-khesraji and Losel 1981)mentioning

confidence: 99%

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Ultrastructural Observations on the Dikaryotic Haustorium ofCronartium Flaccidum(Alb. & Schw.) Wint. inVincetoxicum HirundinariaMedicus

Longo

Bruscaglioni

1986

Caryologia

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SUMMARY -The haustorium of the uredial stage of Cronartium flaccidum in Vincetoxicum hirundinaria was studied with TEM. The observations concern the haustoria! mother cell and its relation to the host cell wall, the penetration peg, the shape and the cytoplasm of the haustorium and some host cell organelles in relation to the haustorium. The presence of collars was noted. These features are similar to those described for host-dikaryotic haustorium relationship in other rusts. The extrahaustorial matrix however shows a unusual development. In fact, it wraps the whole length of haustoria! neck although it is separated from the haustoria! neck wall by the extrahaustorial membrane doubled in this region. The probable significance of this host-parasite interface, perhaps limited to the genus Cronartium, is discussed.

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“…A similar appearance of the matrix has been observed only in Cronartium quercuum f. sp. fusiforme (GRAY et al 1982;KHAN et al 1982).…”

Section: Discussionmentioning

confidence: 99%

“…mother cell wall, as it appears in the micrographs of C. quercuum f. sp. fusiforme (GRAY et al 1982;KHAN et al 1982) and of Puccinia podophylli Schw. (BoRLAND and MIMs 1980).…”

Section: Discussionmentioning

confidence: 99%