The Ascocarps of Ascohymenial Pyrenomycetes

Parguey-Leduc, A.; Janex-Favre, M. C.

doi:10.1007/978-1-4612-5844-5_8

Cited by 26 publications

(11 citation statements)

References 33 publications

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“…Mature perithecia of G. zeae are walled structures with a central cavity filled with asci. During development, the perithecial cavity is initially formed by a combination of the pressures exerted by expanding paraphyses, accompanied by expansion of the perithecium wall (Parguey-Leduc and Janex-Favre 1981). Development of the perithecium in G. zeae has been documented in culture by Trail and Common (2000).…”

Section: Introductionmentioning

confidence: 99%

Microarray analysis of transcript accumulation during perithecium development in the filamentous fungus Gibberella zeae (anamorph Fusarium graminearum)

Kwon

Trail

2006

Mol Genet Genomics

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Gibberella zeae (anamorph Fusarium graminearum) is the causal agent of Fusarium head blight (FHB) of wheat and barley in the United States. Ascospores forcibly discharged from mature fruiting bodies, the perithecia, serve as the primary inoculum for FHB epidemics. To identify genes important for perithecium development and function, a cDNA microarray that covered 11% of the G. zeae genome was constructed. The microarray was used to measure changes in transcription levels of genes expressed during three successive stages of perithecium development. When compared with vegetative mycelia, 651 (31%) cDNA clones showed changes in transcript levels in at least one of the three developmental stages. During perithecium development, 263 (13%) cDNA clones showed temporal changes in transcript profiles. Transcripts that showed the greatest changes in levels in maturing perithecia belonged to genes in the FunCat main functional categories of cell rescue, metabolism, cell type differentiation, energy, and cellular transport. For genes related to metabolism and cell type differentiation, transcripts showed the highest levels in immature perithecia, whereas for cellular transport-related genes, transcripts showed the highest levels in mature perithecia. This study represents the first large-scale investigation of both spatial and temporal changes in transcript levels during perithecium development. It provides clear evidence that the sexual development in fungi is a complex, multigenic process and identifies genes involved in sexual development of this agriculturally important fungus.

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Section: Introductionmentioning

confidence: 99%

Microarray analysis of transcript accumulation during perithecium development in the filamentous fungus Gibberella zeae (anamorph Fusarium graminearum)

Kwon

Trail

2006

Mol Genet Genomics

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“…lB) In the last decades, several works dealing with ascoma ontogeny have all recognized three major steps to complete ascoma development. Favre, 1970; Henssen and Jahns, 1973) and in inoperculate discomycetes (Bellemere, 1967), is in contrast extremely rare in non-lichenized pyrenomycetes (ascolocuJar and as cohymenial) where other types of primordia have been described (Parguey-Leduc, 1966, 1967a, 1967bParguey-Leduc and Janex-Favre, 1981). The primordium usually enlarges.…”

Section: Ascoma Ontogenesis: Some Generalitiesmentioning

confidence: 99%

Ascomycete Systematics

1994

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A series presenting the results of activities sponsored by the NA TO Science Committee, which aims at the dissemination of advanced scientific and technological knowledge, with a view to strengthening links between scientific communities.The series is published by an international board of publishers in conjunction with the Library of Congress Cataloging in Publication InformationOn file ISBN 978-1-4757-9292-8 ISBN 978-1-4757-9290-4 (eBook) All rights reservedNo part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording, or otherwise, without written permission from the Publisher

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“…As was discussed by Parguey-Leduc (1960), the formation of a single pore in ascospores is common in the Sordariaceae (Lundqvist, 1972). She considered that the formation of polar germ-pores in unicellular ascospores was a primitive condition shared by Melanospora Cda.…”

Section: Introductionmentioning

confidence: 99%

“…Parguey-Leduc (1960) found perithecial ontogeny and the ascal ascal apex in H. clavariarum to be of the Sordaria-type. Because of this, and because the unicellular ascospores have a pore at each end, she concluded that the genus was a primitive member of the Sordariales, allied to the Melanosporaceae (nom.…”

Section: Introductionmentioning

confidence: 99%

“…The perithecial wall of Melanospora species is translucent, thin and fleshy whereas the perithecial wall of Helminthosphaeria species is firm, opaque black (sometimes tending to be greenish in 3% KOH). The genus can be excluded from the Ceratostomaceae because of its paraphysate hamathecium, and cylindrical asci that have a chitinoid apical ring (Parguey-Leduc, 1960), in addition to differences in perithecial wall anatomy.…”

Section: Introductionmentioning

confidence: 99%

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