Ultrastructure de la paroi sporique de Coprinus congregatus Bull. ex Fr. et ses variations liées à la symétrie bilatérale de la spore

Hugueney, R.

doi:10.3406/linly.1975.10196

Cited by 2 publications

(6 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rogers (1972) reported a trilaminar membrane resembling wall layer 1 in C. cinereus on the basidial apex and basidiospore in C. stercorarius; a similar structure is found on walls of some green algae (Staehelin and Pickett-Heaps, 1975). My results support the work of Hugueney (1972Hugueney ( , 1975b and Besson-Antoine and Kuhner (1972a) , except that these authors did not observe wall layer 1. The results contradict the reports of Perreau-Bertrand (1967), Clemencon (1970Clemencon ( , 1975, Pegler and Young (1971), and Olah and Reisinger (1974) [Vol.…”

Section: Discussion-role Of the Cytoplasm In Basidio-supporting

confidence: 89%

“…In terms of the wall layers as reported by Heintz and Niederpruem (1971), layer 3 in C. cinereus corresponds to the ectospore, layer 4 to the perispore, layer 5 to the exospore, and layer 6 to the epispore. Layer 6 is electron transparent or nearly so in stage 4 in C. cinereus, but it is electron opaque in mature spores which agrees with the results of Hugueney ( 1972). The difference in wall thickness between my study and that of Heintz and Niederpruem (1971) can be accounted for by the centripetal addition after stage 4 of the remainder of wall layer 6 and the endospore wall layers.…”

supporting

confidence: 83%

“…Wall development-Hilar appendix development in C. cinereus is similar to that reported by Hugueney (1975b). The electron light zone corresponds to the "punctum lacrymans" of Hugueney (1972Hugueney ( , 1975b. It appears to be the site of forma-tion or secretion of the liquid or gaseous droplet associated with basidiospore dissemination (Buller, 1922;Olive, 1964).…”

Section: Discussion-role Of the Cytoplasm In Basidio-mentioning

confidence: 99%

“…External meiospore production by basidia involves many processes, e.g., tip growth of the sterigmata, elaborate wall development, and nuclear migration. There have been a number of studies on basidiospore development in the Agaricales (Perreau-Bertrand, 1967;Hugueney, 1972Hugueney, , 1975bRogers, 1972;Mc-Laughlin, 1973;Nakai and Ushiyama, 1974;Olah and Reisinger, 1974) and in the Aphyllophorales (Wells, 1965;Sundberg, 1971;Hoch and Setliff, 1976), which have dealt primarily with changes in the basidiospore wall. Wall layer terminology is confusing and complex (Perreau-Bertrand, 1967;Kuhner, 1973;Clemencon, 1975) and the results of different authors are difficult to correlate.…”

mentioning

confidence: 99%

“…It is difficult to relate the wall layers in C. cinereus to those in other Coprinus species. Most studies have been made on mature spores (e.g., Besson-Antoine and KUhner, 1972a, b) except for two developmental studies (Hugueney, 1972(Hugueney, , 1975a. [Vol.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Basidiospore Initiation and Early Development in Coprinus Cinereus

McLaughlin

1977

American J of Botany

View full text Add to dashboard Cite

Early basidiospore development in Coprinus cinereus has been divided into four stages: 1) inception, 2) asymmetric growth, 3) equal enlargement, 4) elongation, all based on changes in spore size and shape, wall layering, and cytoplasm. The hilar appendix body formed on the adaxial side of the stage 1 basidiospore, persisted through all stages studied, and predicted the site of the hilar appendix. The hilar appendix formed in stage 2 by modification of certain wall layers. A band of peripheral endoplasmic reticulum covered an average of 38 % of the lower spore wall in stage 3 and was oriented around the axis of growth. Stage 4 was initiated by a break in wall layer 3 at the spore apex and the disappearance of the peripheral endoplasmic reticulum. A pore cap formed on the spore apex during spore elongation. The spore wall consisted at first of three layers and became six layered by deposition of layers between two of the initial layers. Cytoplasmic changes associated with spore growth included presence of small vesicles at stage 1 and larger Golgi vesicles later, absence of mitochondria and probable Golgi cisternae from the spore until stage 3, and presence of a zone nearly free of ribosomes and organelles under the spore apex in stage 4. Functions of the hilar appendix body, peripheral endoplasmic reticulum and the different wall layers in control of spore shape are discussed.

show abstract

Section: Discussion-role Of the Cytoplasm In Basidio-supporting

confidence: 89%

supporting

confidence: 83%