In vitro screening of Latvian isolates of Bjerkandera adusta and Sistotrema brinkmannii as potential biocontrol agents against Heterobasidion root and butt rots

IF 0.7 4区农林科学 Q3 FORESTRY

Baltic Forestry Pub Date : 2022-05-01 DOI:10.46490/bf637

N. Burņeviča, D. Kļaviņa, G. Lione, M. Pellicciaro, Lauma Silbauma, Astra Zaluma, V. Nikolajeva, P. Gonthier

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引用次数: 3

Abstract

Root and butt rots caused by Heterobasidion spp. are destructive diseases of conifer forest stands that may be controlled by spraying freshly cut stumps with chemical or biological treatments, including the effective and widely used biological control agent Phlebiopsis gigantea. In this study, we tested in vitro different Latvian isolates of the fungal species Bjerkandera adusta and Sistotrema brinkmannii for their antagonistic activity against both Heterobasidion species present in Northern Europe and Baltic countries, namely H. annosum and H. parviporum, using Latvian isolates of P. gigantea and the Rotstop® strain as controls. The growth rate of isolates on agar media and their ability to produce oidia or conidia were also assessed. In general, B. adusta performed better than S. brinkmannii. Some isolates of B. adusta ranked similarly to those of P. gigantea in terms of oidia production, growth rate and ability to overgrow the mycelium of both H. annosum and H. parviporum. These isolates will be further tested in field conditions. Key words: biological control, antagonistic fungi, fungal isolates

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拉脱维亚分离株Bjerkandera adusta和Sistotrema brinkmanii的体外筛选

异担子菌引起的根和茎腐病是针叶树林分的破坏性疾病，可以通过喷洒化学或生物处理来控制，包括有效且广泛使用的生物防治剂大麦根。在这项研究中，我们在体外测试了真菌物种Bjerkandera adusta和Sistotrema brinkmanii的不同拉脱维亚分离株对北欧和波罗的海国家的异担子菌物种，即H.annosum和H.parviporum的拮抗活性，使用拉脱维亚的P.gigantea分离株和Rotstop®菌株作为对照。还评估了分离株在琼脂培养基上的生长速率及其产生oidia或分生孢子的能力。总的来说，B.adusta的表现要好于S.brinkmannii。一些B.adusta分离株与P.gigantea分离株在油产量、生长速度和使H.annosum和H.parviporum菌丝体过度生长的能力方面排名相似。这些分离物将在现场条件下进行进一步测试。关键词：生物防治，拮抗真菌，真菌分离物

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来源期刊

Baltic Forestry 农林科学-林学

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The journal welcomes the original articles as well as short reports, review papers on forestry and forest science throughout the Baltic Sea region and elsewhere in the area of boreal and temperate forests. The Baltic Sea region is rather unique through its intrinsic environment and distinguished geographical and social conditions. A temperate climate, transitional and continental, has influenced formation of the mixed coniferous and deciduous stands of high productivity and biological diversity. The forest science has been affected by the ideas from both the East and West. In 1995, Forest Research Institutes and Universities from Estonia, Latvia and Lithuania joined their efforts to publish BALTIC FORESTRY.