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Relevant bibliographies by topics / Cleistothecia

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Academic literature on the topic 'Cleistothecia'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Cleistothecia"

1

Williamson, M. R., and J. H. Blake. "First Report of the Teleomorph of an Oidium sp. Causing Powdery Mildew on Flowering Dogwood in South Carolina." Plant Disease 83, no. 2 (1999): 200. http://dx.doi.org/10.1094/pdis.1999.83.2.200b.

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Prior to 1994, powdery mildew had rarely been reported on flowering dogwood (Cornus florida) in the southeastern U.S. That year, and every year since, epiphytotics of powdery mildew have occurred. Leaf symptoms include distortion and necrotic areas on young leaves and an increase in red pigmentation surrounding infection sites. Young seedlings may be stunted by this disease and growth of older trees may be slowed (2). In early November, 1996, dogwood (C. florida) trees at 10 locations each in Anderson, Oconee, and Pickens counties in northwestern South Carolina were surveyed for the presence o

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2

Bagga, P. S., S. Sharma та D. K. Sandhu. "Developmentally related changes in the production and expression of endo-β-1,4-glucanases in Aspergillus nidulans". Genome 32, № 2 (1989): 288–92. http://dx.doi.org/10.1139/g89-442.

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The production and electrophoretic expression of endoglucanase(s) were compared in the wild-type and three developmental mutants of Aspergillus nidulans. In the wild type, the production of endoglucanase and its distribution in extracellular and intracellular fractions varied with the age of the culture and the yield was better in stable cultures (production of conidia and cleistothecia) as compared with shake cultures (vegetative hyphae only). Two developmental mutants, aco-T69 and aco-40, which lack the development of conidia and cleistothecia, produced low levels of endoglucanase enzymes as

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3

Smith, V. L. "First Report of Powdery Mildew on Cornus florida in Connecticut Caused by Microsphaera pulchra." Plant Disease 83, no. 8 (1999): 782. http://dx.doi.org/10.1094/pdis.1999.83.8.782b.

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Powdery mildew of dogwood (Cornus florida L.) has been observed on landscape trees since 1992, and has been increasing in severity recently. In 1998, mildewed leaves (n = 100) were collected from each of four locations in Connecticut. White mildew colonies first appeared in the early summer, 4 to 6 weeks after leaf emergence, and the initial colonies rapidly coalesced to cover the entire adaxial leaf surface. Incidence on observed trees reached nearly 100%. Premature autumn coloration and defoliation occurred on those trees where incidence was highest; tree mortality due solely to powdery mild

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4

ZONNEVELD, B. J. M. "α-1,3 Glucan Synthesis Correlated with α-1,3 Glucanase Synthesis, Conidiation and Fructification in Morphogenetic Mutants of Aspergillus nidulans". Microbiology 81, № 2 (2000): 445–51. http://dx.doi.org/10.1099/00221287-81-2-445.

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Summary: Nine mutants of Aspergillus nidulans differing in cleistothecia and/or conidia production were investigated. The strains were grown on four media with different levels of glucose (0.8, 3, and 4%) and nitrate (0.6 and 0.15%). The mycelia were analysed on the basis of the dry weight of the total mycelium and the alkali-soluble fraction (containing the α-1,3 glucan) as well as enzyme activities lytic to α-1,3 glucan, laminarin, and starch. Low quantities of α-1,3 glucan present on the third day are correlated with low α-1,3 glucanase activity and absence of cleistothecia formation on the

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5

Gadoury, David M., Belachew Asalf, M. Catherine Heidenreich, et al. "Initiation, Development, and Survival of Cleistothecia of Podosphaera aphanis and Their Role in the Epidemiology of Strawberry Powdery Mildew." Phytopathology® 100, no. 3 (2010): 246–51. http://dx.doi.org/10.1094/phyto-100-3-0246.

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A collection of four clonal isolates of Podosphaera aphanis was heterothallic and was composed of two mutually exclusive mating types. Cleistothecial initials ≈20 to 30 μm in diameter were observed within 7 to 14 days after pairing of compatible isolates and developed into morphologically mature ascocarps within 4 weeks after initiation on both potted plants maintained in isolation and in field plantings in New York State and southern Norway. Ascospores progressed through a lengthy maturation process over winter, during which (i) the conspicuous epiplasm of the ascus was absorbed; (ii) the osm

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6

Cortesi, Paolo, M. Bisiach, M. Ricciolini, and David M. Gadoury. "Cleistothecia of Uncinula necator—An Additional Source of Inoculum in Italian Vineyards." Plant Disease 81, no. 8 (1997): 922–26. http://dx.doi.org/10.1094/pdis.1997.81.8.922.

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Density and viability of populations of cleistothecia of Uncinula necator from bark, leaves, and soil were determined in three vineyards in the Florence and Siena provinces of Tuscany for 3 years. A higher density of cleistothecia was found on fallen leaves than on bark. However, the percentage of viable cleistothecia was higher on bark. No viable cleistothecia were recovered from soil. U. necator overwintered as mycelium in dormant infected buds, which gave rise to flag shoots, only in Santa Cristina, where 20 and 92 flag shoots per hectare were detected before bloom in 1994 and 1995, respect

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7

Garibaldi, A., G. Gilardi, D. Bertetti, and M. L. Gullino. "First Report of Powdery Mildew on Azalea Cv. Mollis (Rhododendron japonicum × R. molle) in Italy." Plant Disease 86, no. 3 (2002): 329. http://dx.doi.org/10.1094/pdis.2002.86.3.329c.

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Rhododendron cultivation has a long history in northern Italy, where a wide selection of varieties and hybrids are grown. In summer 2001, a previously unknown powdery mildew was observed on azalea cv. Mollis (Rhododendron japonicum × R. molle) grown in several gardens in the province of Biella. Initial symptoms included chlorotic spots, followed by white fungal mycelia on both leaf surfaces. Eventually, infected leaves turned reddish and dropped prematurely. Fruit were also infected. On infected tissues, dark brown-to-black spherical cleistothecia developed, alone or in groups. The teleomorph

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8

Koch, J., and E. B. Gareth Jones. "The identity of Crinigera maritima and three new genera of marine cleistothecial ascomycetes." Canadian Journal of Botany 67, no. 4 (1989): 1183–97. http://dx.doi.org/10.1139/b89-154.

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Three cleistothecial marine Ascomycotina collected on driftwood along the Danish coasts are compared. The three species are described as new and each accommodated in its own new genus: Biflua physasca, Marisolaris ansata, and Dryosphaera navigans. Dryosphaera navigans is a new name for what earlier was understood as Crinigera maritima Schmidt, a cleistothecial fungus with treelike appendages covering the surface of the peridium and ascospores with slime threads spirally uncoiling from the spore wall. All three species have cleistothecia with sterile appendages, occur on driftwood associated wi

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9

Jailloux, F., T. Thind, and M. Clerjeau. "Release, germination, and pathogenicity of ascospores of Uncinula necator under controlled conditions." Canadian Journal of Botany 76, no. 5 (1998): 777–81. http://dx.doi.org/10.1139/b98-054.

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A laboratory technique was standardized for studying the release, maturation, germination, and pathogenicity of ascospores of Uncinula necator (Schw.) Burr. Surface disinfestation and wetting of grape (Vitis vinifera L.) leaf disks bearing cleistothecia collected in the vineyard before incubation in a humid chamber for 48 h at 20°C were found essential for obtaining the release of ascospores (8 ascospores/cm2). Storage conditions involving periodic wetting treatments of cleistothecia at 5°C during 110 days were necessary to induce both ascospore release (80 ascospores/cm2) and germination abil

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10

Mmbaga, Margaret T. "Winter Survival and Source of Primary Inoculum of Powdery Mildew of Dogwood in Tennessee." Plant Disease 84, no. 5 (2000): 574–79. http://dx.doi.org/10.1094/pdis.2000.84.5.574.

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A 3-year study (1996-1998) on the epidemiology of dogwood powdery mildew showed that Microsphaera pulchra is the primary powdery mildew pathogen of dogwoods (Cornus spp.) in mid-Tennessee, and the occurrence of Phyllactinia guttata is insignificant. Cleistothecia harvested from leaf debris in spring contained viable asci and ascospores and produced powdery mildew infection on disease-free plants. Ascospores that were morphologically similar to those of M. pulchra were trapped on sticky slides in the vicinity of dogwoods throughout spring. Previously infected plants that did not harbor cleistot

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Dissertations / Theses on the topic "Cleistothecia"

1

Liu, Li. "Precursors of epi-/shamixanthone formed in Hülle cells cause oxidative stress sensitivity and repress sexual development of the filamentous fungus Aspergillus nidulans." Doctoral thesis, 2019. http://hdl.handle.net/21.11130/00-1735-0000-0005-1313-0.

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Dirnberger, Benedict. "Proteomics of Aspergillus nidulans sexually differentiated cells." Doctoral thesis, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E4B4-D.

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Books on the topic "Cleistothecia"

1

Hansen, Karen. Phylogenetic origins of two cleistothecial fungi, Orbicula parietina and Lasiobolidium orbiculoides, within the operculate discomycetes. The Mycological Society of America, 2005.

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Book chapters on the topic "Cleistothecia"

1

"Cleistothecium." In Encyclopedia of Genetics, Genomics, Proteomics and Informatics. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6754-9_3141.

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2

"Histochemical and Electron Microscope Studies of Ascospore Ontogeny in Three Marine Fungi with Cleistothecia: Amylocarpus encephaloides Currey, Dryosphaera navigans Koch et Jones and Eiona tunicata Kohlm." In Volume 34, 1991. De Gruyter, 1991. http://dx.doi.org/10.1515/9783112328101-026.

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3

"Phylogeny and molecular taxonomy of Penicillium Evolutionary relationships of the cleistothecial genera with Penicillium, Geosmithia, Merimbla and Sarophorum anamorphs as inferred from 18S rDNA sequence divergence." In Integration of Modern Taxonomic Methods For Penicillium and Aspergillus Classification. CRC Press, 2003. http://dx.doi.org/10.1201/9781482284188-10.

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