Ultrastructure of conidial and microconidial ontogeny of Marssonina species pathogenic to poplars

1983 ◽  
Vol 61 (12) ◽  
pp. 3529-3532 ◽  
Author(s):  
A. G. Spiers ◽  
D. H. Hopcroft
Keyword(s):  
Conidiogenous Locus ◽  
Marssonina Brunnea ◽  
Primary Conidium

Conidial and microconidial ontogeny of Marssonina brunnea, M. castagnei, and M. populi was annellidic. The primary conidium and microconidium developed holoblastically and a new slightly higher conidiogenous locus was formed with each percurrent vegetative proliferation through the annellophore apex. Delimiting septa were perforate with Woronin bodies and electron-dense septal pore plugs were observed in the bases of seceded conidia and microconidia.

Fine structure of conidiogenesis in the mosquito pathogen Culicinomyces clavosporus (Deuteromycotina)

1983 ◽  
Vol 61 (10) ◽  
pp. 2618-2625 ◽  
Author(s):  
A. O. Inmann III ◽  
C. E. Bland
Keyword(s):  
Cell Wall ◽  
Fine Structure ◽  
Classification Scheme ◽  
Conidiogenous Cell ◽  
Dense Core ◽  
Dense Core Vesicles ◽  
Conidiogenous Locus ◽  
Mode Of Development ◽  
Mosquito Pathogen ◽  
Primary Conidium

Conidiogenesis in Culicinomyces clavosporus Couch, Romney, and Rao (Deuteromycotina) is initiated with the growth of conidiogenous cells from vegetative hyphae. Formation of the primary conidium itself begins with a conidial initial which grows through the bilaminar wall at the tip of the conidiogenous cell, wall remnants of the conidiogenous cell often collapsing to form a collarette at the base of conidia. This factor, in addition to the fixed conidiogenous locus, shows that the conidiogenous cell is a phialide. As the conidial initial enlarges, a bilaminar well is synthesized around the cell, and cytoplasmic organelles migrate through the neck of the phialide into the initial. Once the conidium is mature, a septum is formed across the open neck of the phialide and two organelles (dense-core vesicles and autophagosomes), unique to conidia, become evident. The mode of development is enteroblastic–phialidic; Culicinomyces clavosporus is placed therefore in section IVB of the Hughes–Tubaki–Barron classification scheme described by B. Kendrick for the Deuteromycotina.

scholarly journals Classicula sinensis, a new species of basidiomycetous aquatic hyphomycetes from southwest China

MycoKeys ◽  
2018 ◽  
Vol 40 ◽  
pp. 1-12 ◽  
Author(s):  
Min Qiao ◽  
Wenjun Li ◽  
Ying Huang ◽  
Jianping Xu ◽  
Li Zhang ◽  
...  
Keyword(s):  
New Species ◽  
Small Proportion ◽  
Gene Sequence ◽  
Southwest China ◽  
Aquatic Hyphomycetes ◽  
Sequence Analyses ◽  
Multiple Gene ◽  
Chongqing Municipality ◽  
Conidiogenous Locus ◽  
A New Species

Classiculasinensis, isolated from decaying leaves from Mozigou, Chongqing Municipality, China, is described as a new species. The new species is a member of basidiomycetous aquatic hyphomycetes which represent a small proportion of all aquatic hyphomycetes. This species falls within the genus Classicula (Classiculaceae, Pucciniomycotina) and is closely related to C.fluitans, based on multiple gene sequence analyses. Morphologically, it is characterised by the apical, hyaline, obclavate or navicular conidia with several hair-like lateral appendages and by its holoblastic and monoblastic conidiogenesis, with a flat un-thickened conidiogenous locus. Clamp connections and haustorial branches were often observed in culture.

Fungicidal control of Marssonina brunnea on poplar seed

1983 ◽  
Vol 13 (5-6) ◽  
pp. 344-348
Author(s):  
A. Gspiers ◽  
H. T. Wenilam
Keyword(s):  
Marssonina Brunnea

Host effect on genetic variation of Marssonina brunnea pathogenic to poplars

2000 ◽  
Vol 100 (3-4) ◽  
pp. 614-620
Author(s):  
Z. M. Han ◽  
T. M. Yin ◽  
M. R. Huang ◽  
R.L. Wu ◽  
C. D. Li
Keyword(s):  
Genetic Variation ◽  
Host Effect ◽  
Marssonina Brunnea

Conidiogenesis in Termitaria snyderi (Fungi Imperfecti)

1973 ◽  
Vol 51 (12) ◽  
pp. 2307-2314 ◽  
Author(s):  
Saeed R. Khan ◽  
Henry C. Aldrich
Keyword(s):  
Electron Microscopy ◽  
Endoplasmic Reticulum ◽  
Lipid Droplets ◽  
Light And Electron Microscopy ◽  
Cross Wall ◽  
Transverse Septum ◽  
Conidiogenous Locus ◽  
Oriented Parallel ◽  
Fungi Imperfecti

Termitaria snyderi Thaxter forms small discoid lesions on the exoskeleton of different species of termites. Its conidiogenesis has been studied by light and electron microscopy. The phialides are oriented parallel in a closely packed sporodochium. The conidia are produced endogenously in basipetal succession from a fixed conidiogenous locus and are liberated when the tip is broken off the phialide as a result of the force applied by the formation of new conidia. The area of the phialide beyond the locus forms a tubular collarette. The conidium initial buds out at the locus and after it has received its organelles and reached a certain size it is delimited by a centripetally growing transverse septum. The region of the growing septum has many vesicles which may be involved in cross wall synthesis. Conidia are cylindrical, uninucleate, and double-walled. They have mitochondria, endoplasmic reticulum (ER), conspicuous lipid droplets, and vacuoles. Each conidiophore has long mitochondria, elongate nuclei, and much endoplasmic reticulum. The plasmalemma of the conidiophore is highly convoluted.

scholarly journals A Comprehensive Analysis of the Transcriptomes of Marssonina brunnea and Infected Poplar Leaves to Capture Vital Events in Host-Pathogen Interactions

PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0134246 ◽  
Author(s):  
Chengwen Chen ◽  
Ye Yao ◽  
Liang Zhang ◽  
Minjie Xu ◽  
Jianping Jiang ◽  
...  
Keyword(s):  
Comprehensive Analysis ◽  
Host Pathogen Interactions ◽  
Host Pathogen ◽  
Marssonina Brunnea ◽  
Poplar Leaves
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