Details

Autor(en) / Beteiligte

• Draganova, Slavimira
• Pilarska, Daniela
• Takov, Danail
• Doychev, Danail

Titel

Utilization of Carbohydrates by Beauveria Bassiana Isolates Obtained from Forest Pests

Ist Teil von

• Journal of plant protection research, 2011-10, Vol.51 (4), p.349

Ort / Verlag

Warsaw: Polish Academy of Sciences

Erscheinungsjahr

2011

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Utilization of Carbohydrates by [Beauveria Bassiana] Isolates Obtained from Forest Pests Carbohydrate utilization profiles of ten isolates of the entomopathogenic fungus [Beauveria bassiana] (Bals.-Criv.) Vuillemin were studied and compared to assist in determining their phenotypic characterization. Isolates were obtained in pure cultures from dead individuals of several forest pests collected from different regions in Bulgaria. Studies on utilization profiles were based on the acidification of twenty carbohydrates. The results indicate that sucrose, maltose and trehalose were assimilated at a high degree compared to esculin, arabinose and dulcitol. According to the results of a cluster analysis of the carbohydrate utilization profiles, the [B. bassiana] isolates were divided into two larger groupings. All isolates in the first larger cluster were obtained from the coleopteran insects - [Stenomax aeneus, Ips typographus, I. sexdentatus] and [Dryocoetes autographus]. Isolates from the other cluster were obtained from the lepidopteran larvae of [Thaumetopoea pityocampa] and [Lymantria dispar], and from an adult of the coleopteran species [Hylurgops palliatus]. We determined that each [B. bassiana] isolate exhibited a different and specific carbohydrate utilization profile but differences at the p-level < 0.05 were significant among some of them. The most distinguishable was the isolate 560Bb obtained from [T. pityocampa]. Differences between the isolate 560Bb and the other nine [B. bassiana] isolates were highly significant at the p-level < 0.005. Isolate 433Bb obtained from a dead adult of [I. typographus] was significantly different from five of the studied isolates at the p-level < 0.05.