Physiological and Environmental Aspects of Ascospore Discharge in Gibberella zeae (Anamorph Fusarium graminearum)

Mycologia ◽  
2002 ◽  
Vol 94 (2) ◽  
pp. 181 ◽  
Author(s):  
Frances Trail ◽  
Haixin Xu ◽  
Rachel Loranger ◽  
David Gadoury
Keyword(s):  
Fusarium Graminearum ◽  
Gibberella Zeae ◽  
Environmental Aspects ◽  
Ascospore Discharge

Perithecium Formation and Ascospore Discharge in Fusarium graminearum

BIO-PROTOCOL ◽  
2018 ◽  
Vol 8 (15) ◽  
Author(s):  
Yan Guo ◽  
Wan-Qian Wei ◽  
Dong Zhang ◽  
Wei-Hua Tang
Keyword(s):  
Fusarium Graminearum ◽  
Ascospore Discharge

Gibberella zeae. [Descriptions of Fungi and Bacteria].

1973 ◽  
Author(s):  
C. Booth
Keyword(s):  
Geographical Distribution ◽  
Secondary Infection ◽  
Brown Rot ◽  
Gibberella Zeae ◽  
Infested Soil ◽  
Foot Rot ◽  
Seedling Blight ◽  
Water Droplets ◽  
Ascospore Discharge ◽  
The Tropics

Abstract A description is provided for Gibberella zeae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Wheat, maize, barley, carnations and other ornamentals; also reported infecting Lycopersicon, Pisum, Trifolium and Solanum DISEASE: Seedling blight, pre-emergence and post-emergence blight, root and foot rot, brown rot, culm decay, head or kernel blight (scab or ear scab) of wheat, maize, barley and other cereals. Leaf and flower rot of carnations and other ornamentals. Also reported infecting species of Lycopersicon, Pisum, Trifolium and Solanum. GEOGRAPHICAL DISTRIBUTION: Worldwide on maize and rice in the tropics. Wheat, oats, barley and rye in temperate regions. TRANSMISSION: By planting infected or infested seeds or by planting in infested soil. Secondary infection occurs widely by water droplets under moist conditions or by ascospore discharge.

scholarly journals Técnicas de aplicação de fungicida em trigo para o controle de Giberela (Gibberella zeae)

2003 ◽  
Vol 33 (1) ◽  
pp. 13-20 ◽  
Author(s):  
Edivan Panisson ◽  
Walter Boller ◽  
Erlei Melo Reis ◽  
Laércio Hoffmann
Keyword(s):  
Fusarium Graminearum ◽  
Gibberella Zeae

Durante muitos anos, a giberela, causada pelo fungo Gibberella zeae (anamorfo Fusarium graminearum), foi considerada de importância secundária no sul do Brasil. O aumento da intensidade e da freqüência de ocorrência, tornou a giberela uma das doenças de maior importância na cultura do trigo. A giberela é uma doença de infecção floral e mesmo os fungicidas sistêmicos recomendados apresentam apenas efeito protetor das anteras. Os objetivos do presente trabalho foram avaliar a eficiência de controle e os efeitos nos grãos colhidos, de dois tipos de pontas de pulverização (leque e duplo leque), diferentes arranjos dos bicos na barra de aplicação e dois volumes de calda. A desuniformidade da antese aparece como um dos principais fatores envolvidos com a baixa eficiência dos fungicidas. Nos experimentos, realizados no ano 2000, a aplicação dos tratamentos reduziu significativamente a incidência, o número de espiguetas gibereladas e a severidade da doença, aumentando o rendimento de grãos. As pontas de pulverização, seus arranjos na barra e os volumes de calda utilizados comportaram-se de maneira semelhante em todas as variáveis avaliadas. O incremento no rendimento de grãos, obtido em relação à testemunha, sugere que se deve recomendar a aplicação de fungicidas para o controle da giberela, utilizando pontas que geram gotas finas a médias com volume de calda de 200 L.ha-1.

scholarly journals The Spread of a Released Clone of Gibberella zeae from Different Amounts of Infested Corn Residue

Plant Disease ◽  
2011 ◽  
Vol 95 (11) ◽  
pp. 1458-1464 ◽  
Author(s):  
Melissa D. Keller ◽  
Wade E. Thomason ◽  
David G. Schmale
Keyword(s):  
Fusarium Graminearum ◽  
Wheat Cultivar ◽  
Gibberella Zeae ◽  
Corn Stalk ◽  
Head Blight ◽  
Inoculum Sources ◽  
Length Polymorphisms ◽  
Amplified Fragment Length Polymorphisms ◽  
Corn Residue ◽  
Moderately Resistant

Corn residue is a significant source of inoculum for epidemics of Fusarium head blight (FHB) in wheat and barley, but little is known about the influence of different amounts of corn residue on FHB. We monitored the spread of a released clone of Gibberella zeae (Fusarium graminearum), causal agent of FHB, from small 0.84-m-diameter research plots containing 45, 200, or 410 g of infested corn stalk pieces in winter wheat and barley fields in Virginia over 3 years (2008 to 2010). The fungus was recaptured through the collection of wheat and barley spikes at 0 and 3 m from the source and the released clone was identified in heterogeneous background populations using amplified fragment length polymorphisms. Results showed a slightly greater intensity of recovery of the clone at a greater distance when more infested residue was present. Plots containing larger amounts of inoculum (410 g) generally resulted in a smaller decline of recovery of the clone at 3 m from the source, indicating a greater spread from the larger inoculum source. The clone was also recovered at distances ≥18 m from inoculum sources. Larger amounts of corn residue generally had less influence on clone recovery in plots containing a moderately resistant wheat cultivar than those containing a susceptible wheat cultivar.

Gene expression shifts during perithecium development in Gibberella zeae (anamorph Fusarium graminearum), with particular emphasis on ion transport proteins

2007 ◽  
Vol 44 (11) ◽  
pp. 1146-1156 ◽  
Author(s):  
Heather E. Hallen ◽  
Marianne Huebner ◽  
Shin-Han Shiu ◽  
Ulrich Güldener ◽  
Frances Trail
Keyword(s):  
Gene Expression ◽  
Ion Transport ◽  
Fusarium Graminearum ◽  
Transport Proteins ◽  
Gibberella Zeae

Bacterial artificial chromosome–based physical map of Gibberella zeae (Fusarium graminearum)

Genome ◽  
2007 ◽  
Vol 50 (10) ◽  
pp. 954-962 ◽  
Author(s):  
Yueh-Long Chang ◽  
Seungho Cho ◽  
H. Corby Kistler ◽  
Chun-Sheng Hsieh ◽  
Gary J. Muehlbauer
Keyword(s):  
Bacterial Artificial Chromosome ◽  
Fusarium Graminearum ◽  
Genetic Map ◽  
Genome Sequence ◽  
Restriction Enzyme ◽  
Physical Map ◽  
Artificial Chromosome ◽  
Gibberella Zeae ◽  
Restriction Enzyme Site ◽  
Insert Size

Fusarium graminearum is the primary causal pathogen of Fusarium head blight of wheat and barley. To accelerate genomic analysis of F. graminearum, we developed a bacterial artificial chromosome (BAC)–based physical map and integrated it with the genome sequence and genetic map. One BAC library, developed in the HindIII restriction enzyme site, consists of 4608 clones with an insert size of approximately 107 kb and covers about 13.5 genome equivalents. The other library, developed in the BamHI restriction enzyme site, consists of 3072 clones with an insert size of approximately 95 kb and covers about 8.0 genome equivalents. We fingerprinted 2688 clones from the HindIII library and 1536 clones from the BamHI library and developed a physical map of F. graminearum consisting of 26 contigs covering 39.2 Mb. Comparison of our map with the F. graminearum genome sequence showed that the size of our physical map is equivalent to the 36.1 Mb of the genome sequence. We used 31 sequence-based genetic markers, randomly spaced throughout the genome, to integrate the physical map with the genetic map. We also end-sequenced 17 BamHI BAC clones and identified 4 clones that spanned gaps in the genome sequence. Our new integrated map is highly reliable and useful for a variety of genomics studies.

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