Fine structure of the septal pore apparatus in <i>Polyporus tomentosus, Poria latemarginata</i>, and <i>Rhizoctonia solani</i>

Setliff, E. C.; MacDonald, William L.; Patton, R. F.

doi:10.1139/b72-327

Cited by 29 publications

(8 citation statements)

References 13 publications

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“…As has been noted by other workers (Bracker and Butler 1963;Wilsenach and Kessel 1965;Setliff et al 1972), the electron-dense plates of the cross wall extend into the septal swelling and seem to flair abruptly adjacent to the inner portion of the septal swelling (Figs. 2,5,7,8).…”

Section: Fine Structure Of the Septa1 Pore A P P~i R~i T [ L~supporting

confidence: 78%

The fine structure of septal pore apparatus in the lamellae of Pholiota terrestris

Wells¹

1978

Can. J. Bot.

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The fine structure of septal pore apparatus in the lamellae of Pholiota terrestris WELLS, K. 1978. The fine structure of septal pore apparatus in the lamellae ofP/~oliottr terrestris.Can. J. Bot. 56: 2915-2924. L'auteur a observe les lamelles du Plloliottr tprre.stri.s en coupes minces passant par un plan perpendiculaire B la surface hymtniale. Les lamelles consistent en une couche hymeniale comportant des basides et des cystides Cparses, un subhymenium entrelace et une tr.;ime. La trame interieure comporte une zone d'articles myceliens relativement robustes et vacuoles, alors que la twme externe est constituee d'articles myceliens plus petits avec un contenu cytoplasmique relativement dense. L'appareil septal, y compris le pore, est semblabled:ins toutes les lamelles h celui decrit chez 121 plupart des autres Homobasidiomycetes et des Htterobasidiomycetes saprophytes. Au centre du pore septiil il y a une mince zone dense aux electrons qui entrecoupe le canal du pore. Dans les pores de certaines septiitions on retrouve de telles zones denses aux electrons pres de I'un 011 des deux orifices. Lacapsule du septum est constituee d'un ensemble de trois membranes; les deux membranes Iimitantes apparaissent nettement tripartites en coupe tl.ansversaIe. Les pores dans la capsule des septums sont distribues en hexagone et mesurent de 70 B 105 nm de diamtttre. Lescapsules sept;iles proximales des septumsdes sous-basides et celles du subhymenium developpent une capsule externe granulaire qui est hnbituellement delimitee exterieurement par du reticulum endoplasmique ou, moins souvent, par le tonoplaste d'une vacuole adjacente. Les pores septaux des septations des sous-basides deviennent obtures par les gonflements septaux dilates B la suite de I'expulsion des basidiospores. Dans la trame, le septum et son pore ne sont pas associks B une capsule externe; cependant plusieurs pores sept;iux de Ia trame deviennent obtures par des bouchons de materiel dense aux electrons prks des deux orifices. L'auteur compare les observations effectuees dans les lamelles du P. terrestris B celles effectuees sur d'autres Homobasidiomyctttes et HCterobasidiomycetes saprophytiques. [ T~i d u i t par lejournal] KENNETH WELLS Deprrrtt,~ent ofBotor~y, Unit'ersity of C~rlifbrnia. Dovis, CA, U.S.A. 95616 Received May 25. 1978 WELLS. K. 1978. The fine structure of septal pore apparatus in the lamellae of Pholiotcr terre~tris.Can. J. Bot. 56: 2915-2924. The lamellae of Plrolioto terrestris, when viewed in thin sections cut perpendicular to the hymenial surface, consist of a hymenial layer of basidia and scattered cystidia, an interwoven subhymenium. and a trama. The inner trama is composed of a zone of relatively large, vacuolated hyphal elements. whereas the outer trama consists of smaller hyphal elements with relatively dense cytoplasmic contents. The septal pore apparatus throughout the lamellae are similar to those described in most other Homobasidiomycetes and saprobic Heterobasidiomycetes. In the center of the septal pore there is a narrow electron...

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Section: Fine Structure Of the Septa1 Pore A P P~i R~i T [ L~supporting

confidence: 78%

The fine structure of septal pore apparatus in the lamellae of Pholiota terrestris

Wells¹

1978

Can. J. Bot.

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“…(Setliff et (11. 1972), or Rhizoctonirr solrini Kuehn (Butler and Bracker 1970;Setliff et al 1972). The micrographs of Butler and Bracker (1970) and those of Setlilf et al (1972), moreover, clearly show that the morphology of parenthesomes may be variable.…”

Section: Discussionmentioning

confidence: 99%

“…The micrographs of Butler and Bracker (1970) and those of Setlilf et al (1972), moreover, clearly show that the morphology of parenthesomes may be variable. A continuum might exist from a condition where no parenthesome is present as in W. sebi and the ascomycetous yeasts (Icreger-van Rij and Veenhuis 19690, 19696, 1973) through a parenthesome with many gaps as in Rlzizoctonir~ solnni Kuehn (Butler and Bracker 1970;Setliff et al 1972) to a parenthesome with few or no gaps as in Pol~porus biennis (Moore and Marchant 1972).…”

Section: Discussionmentioning

confidence: 99%

Fine structure of the septum in Wallemia sebi

Terracina¹

1974

Can. J. Bot.

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The septa of the deuteromycete Wallemia sebi (Fr.) v. Arx have expanded pore margins surrounding a central pore and lack parenthesomes. At each end of the pore there is an electron-dense region with a distinct five-banded pattern (three electron-dense bands separated by two less-electron-dense bands) oriented parallel to the septum. These septa are compared with similar septa in phycomycetes, the dolipore septa reported in the ascomycetous yeast genus Ambrosiozyma and the dolipore–parenthesome septa of the basidiomycetes. It is proposed that the term dolipore be applied to any septum having expanded pore margins.

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“…These characters include descriptions of secretory products, wall differentiation, nuclear condition and the differentiation of specific cytoplasmic organelles such as Golgi and ER. The marked degree of ER differentiation among cystidia of species of Agaricomycetes has been stressed by many investigators (Setliff et al 1972, Thielke 1972, Thaler and Gailhofer 1981, Clémençon 2004. Because the number of taxa entered in the Database is small, full delineation of cystidial character states is far from resolved.…”

Section: Discussionmentioning

confidence: 99%

Conservation of cytoplasmic organization in the cystidia ofSuillusspecies

Jenkinson

Celio

Padamsee³

et al. 2008

Mycologia

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Cystidia of Suillus americanus and S. granulatus (Boletales) were examined cytochemically and ultrastructurally with cells prepared by freeze substitution. We present the first study showing ultrastructural details and cytological functions of the cystidium to be conserved in two closely related species. The results are presented for inclusion in the AFTOL Structural and Biochemical Database to aid in the application of morphological characters to phylogenetic studies. The cystidia of these Suillus species appear to be united by a series of conserved characters, including specialized secretion mechanisms, smooth tubular endoplasmic reticulum and abundant free ribosomes. The conservation of these subcellular traits among members of this genus suggests that ultrastructural details of cystidia may provide a suite of phylogenetically informative characters. Inclusion of such characters in phylogenetic analyses might resolve or provide support for monophyletic groups at the level of family or genus.

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Fine structure of the septal pore apparatus in Polyporus tomentosus, Poria latemarginata, and Rhizoctonia solani

Cited by 29 publications

References 13 publications

The fine structure of septal pore apparatus in the lamellae of Pholiota terrestris

The fine structure of septal pore apparatus in the lamellae of Pholiota terrestris

Fine structure of the septum in Wallemia sebi

Conservation of cytoplasmic organization in the cystidia ofSuillusspecies

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