Hexagonal inclusions in an ergosterol-free mutant of <i>Neurospora crassa</i>

Armentrout, V. N.; Maxwell, D. P.

doi:10.1139/m74-221

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…Their hexagonal shape is like that described in Morchella rotunda (PATRIG-NANI et al 1983) and in Neurospora crassa (ARMENTROUT and MAXWELL 1974;HocH and MAXWELL 1974;TRINCI and CoLLINGE 1974).…”

Section: ) Light Microscopysupporting

confidence: 78%

Structures ofSclerotinia SclerotiorumAscocarp and its Septal Pore Ultrastructure

Pellegrini¹,

Patrignani²,

Gerola³

1989

Caryologia

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In this study, it is taken into consideration the cellular modifications during the development of fertile hyphae from the apothecium of Sclerotinia sclerotiorum and the ultrastructure of the transverse septum at different levels of ascocarp hyphae. Moreover enzymatic digestions have been performed to ascertain the chemical nature of the various inclusions and of the organelles associated to the septa! pore.

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Section: ) Light Microscopysupporting

confidence: 78%

Structures ofSclerotinia SclerotiorumAscocarp and its Septal Pore Ultrastructure

Pellegrini¹,

Patrignani²,

Gerola³

1989

Caryologia

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“…In specimens fixed for electron microscopy the crystals were impervious to solvents that dissolved sterols but disappeared when treated with proteases (Hoch and Maxwell, 1974). Furthermore, typical hexagonal crystals were identified in mutant strains that are defective in ergosterol synthesis (Armentrout and Maxwell, 1974).…”

mentioning

confidence: 99%

hex-1, a Gene Unique to Filamentous Fungi, Encodes the Major Protein of the Woronin Body and Functions as a Plug for Septal Pores

Tenney

Hunt

Sweigard

et al. 2000

Fungal Genetics and Biology

136

151

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“…Note that crystal-like structures are also seen in this figure. A variety of crystal-like inclusions have been observed in other fungi (2,16,18,19), and the nature and possible significance of these structures in M. rouxii is presently under investigation in our laboratory.…”

Section: Resultsmentioning

confidence: 95%

Formation and ultrastructure of Mucor rouxii arthrospores

Barrera¹

1983

J Bacteriol

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The formation of arthrospores in Mucor rouxii was studied by transmission and scanning electron microscopy and light microscopy. The arthrospores formed in a random manner in terminal and internal regions of the hyphae. The earliest appearance of the arthrospores was seen by scanning electron microscopy as compartments delineated by double ridges. These ridges probably corresponded to the site of septal wall formation. The elongated compartments varied considerably in size. As the arthrospores matured, they tended to separate as a result of a gradual change in the shape of the arthrospores to a nearly spherical form and also as the result of simultaneous degradation of the outermost cell wall layer. The mature arthrospores were surrounded by a complex cell wall consisting of at least three distinct layers in addition to the original hyphal cell wall. Crystal-like structures were seen in the cytoplasm of some of the arthrospores in addition to the usual organelles such as mitochondria, nuclei, and ribosomes. Septum formation by centripetal cell wall growth from the lateral hyphal wall was documented by transmission electron microscopy. However, evidence was also found which suggested that not all internal cell wall development in the fungal hyphae during arthrosporogenesis necessarily led to the formation of mature arthrospores.

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Hexagonal inclusions in an ergosterol-free mutant of Neurospora crassa

Cited by 5 publications

References 6 publications

Structures ofSclerotinia SclerotiorumAscocarp and its Septal Pore Ultrastructure

Structures ofSclerotinia SclerotiorumAscocarp and its Septal Pore Ultrastructure

hex-1, a Gene Unique to Filamentous Fungi, Encodes the Major Protein of the Woronin Body and Functions as a Plug for Septal Pores

Formation and ultrastructure of Mucor rouxii arthrospores

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