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DON acumulation and pathogenicity of Fusarium graminearum isolates


Ćosić, Jasenka; Vrandečić, Karolina; Jurković, Draženka; Poštić, Jelena; Jajić, Igor
DON acumulation and pathogenicity of Fusarium graminearum isolates // Book of Abstracts / Edward Arseniuk, Elzbieta Czembor, Tomasz Goral (ur.).
Radzikow: Plant Breeding and Acclimatization Institute, 2010. str. 155-155 (poster, međunarodna recenzija, sažetak, znanstveni)


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Naslov
DON acumulation and pathogenicity of Fusarium graminearum isolates

Autori
Ćosić, Jasenka ; Vrandečić, Karolina ; Jurković, Draženka ; Poštić, Jelena ; Jajić, Igor

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts / Edward Arseniuk, Elzbieta Czembor, Tomasz Goral - Radzikow : Plant Breeding and Acclimatization Institute, 2010, 155-155

ISBN
83-891172-44-5

Skup
11th European Fusarium Seminar

Mjesto i datum
Radzikov, Poljska, 20-23.09.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Fusarium graminearum ; DON content ; yield loss

Sažetak
Fusarium head blight (FHB) or scab which is primarily caused by Fusarium graminearum is a widespread and destructive wheat disease. The disease can reduce grain yield and decrease the value of harvested grains especially through the production mycotoxins. The objectives of this study were to assess the pathogenicity of F. graminearum isolates from wheat, barley and maize and determine their potential to produce DON. A total of 26 F. graminearum isolates collected in eastern Croatia were used in testing their pathogenicity and ability to produce DON. The wheat heads (cv. Monika) were sprayed at mid-anthesis (Zadoks’ growth stage 65) with a hand sprayer, ensuring that all spikelets were exposed to the inoculum. Inoculated heads were covered with PVC bags for 24 hours to ensure high relative humidity. The heads of control plants were sprayed with distilled water. At the stage of full ripening ears were manually harvested, thousand kernel weight (TKW) and percent of Fusarium demaged kernel (FDK) were determined, as well as DON content (HPLC). Significant differences among isolates were found for all three traits. Depending on isolate TKW was reduced from 18, 50 to 68.00%, if compared to control. Percentage of infected seeds was between 54.00 and 89.50%. Out of total of infected seeds, only 28.00 to 55.15% germinated. Yield reductions in small grain cereals following naturally occurring epidemics of FHB have been observed all over the world with estimated losses in the order of 15-50% (Snijders 1989, McMullen et al. 1997). More precise data relating to the effects of FHB on yield have been obtained from inoculated trials (Mesterhazy 1978, Häni 1981). After artificial inoculating wheat ears with F. culmorum and M. nivale, Häni (1981) observed grain yield reductions of 15% and 60%, respectively. Artificial infection of wheat ears with F. graminearum reduced TKW up to 36% (Wong et al. 1992). In analyzed samples 2.26 to 4890 µg g-1 DON were detected. This results are in agreement with previous data indicating that isolates of one fungi species could produce unequal amount of mycotoxin (Mirocha et al. 1989, Windels et al. 1989, Bagi et al. 2000, Ferreira Geraldo et al. 2006, Muthomi et al. 2008).

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)



POVEZANOST RADA


Projekt / tema
079-0730718-0578 - Fuzarijska palež klasova i sadržaj DON-a u zrnu i brašnu (Ćosić, Jasenka, MZOS - )

Ustanove
Fakultet agrobiotehničkih znanosti Osijek

Citiraj ovu publikaciju

Ćosić, Jasenka; Vrandečić, Karolina; Jurković, Draženka; Poštić, Jelena; Jajić, Igor
DON acumulation and pathogenicity of Fusarium graminearum isolates // Book of Abstracts / Edward Arseniuk, Elzbieta Czembor, Tomasz Goral (ur.).
Radzikow: Plant Breeding and Acclimatization Institute, 2010. str. 155-155 (poster, međunarodna recenzija, sažetak, znanstveni)
Ćosić, J., Vrandečić, K., Jurković, D., Poštić, J. & Jajić, I. (2010) DON acumulation and pathogenicity of Fusarium graminearum isolates. U: Edward Arseniuk, Elzbieta Czembor, Tomasz Goral (ur.)Book of Abstracts.
@article{article, year = {2010}, pages = {155-155}, keywords = {Fusarium graminearum, DON content, yield loss}, isbn = {83-891172-44-5}, title = {DON acumulation and pathogenicity of Fusarium graminearum isolates}, keyword = {Fusarium graminearum, DON content, yield loss}, publisher = {Plant Breeding and Acclimatization Institute}, publisherplace = {Radzikov, Poljska} }




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