Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

[Text] / N. S. Cho [et al.] // Holzforschung. - 2001. - Vol. 55, Is. 6. - P579-584, DOI 10.1515/HF.2001.094. - Cited References: 30 . - 6. - ISSN 0018-3830РУБ Forestry + Materials Science, Paper & Wood

Аннотация: The effects of pentachlorophenol (PCP) and 2-chlorophenol (2CP) on white rot fungi, Abortiporus biennis, Cerrena unicolor, Gloeophyllum odoratum, and Trametes versicolor were investigated. With the exception of C. unicolor and A. biennis, concentrations of PCP higher than 50 ppm inhibited fungal growth completely. However, extreme concentrations of PCP (500 ppm) caused a 61 % increase in growth of C. unicolor compared to the control culture within 14 days. When initial PCP concentrations were 50 ppm A. biennis and C. unicolor achieved, respectively, 87 % and 78 % of chlorophenol transformation within 3 days. However, when 2,5-dimethylaniline (0.2mM) was added to the C. unicolor culture, 98 % of PCP transformation was achieved after one hour. Under the same conditions, A. biennis transformed 44 % of PCP. Both chlorophenols are completely removed, when laccase activity reaches its maximum. In conclusion, among the four fungi investigated, C. unicolor and A. Biennis were very effective in transforming PCP and 2-CP. This biotransformation was greatly intensified by 2,5-dimethylaniline and accompanied by an increase in laccase activity.

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Держатели документа:
Chungbuk Natl Univ, Sch Forest Resources, Cheongju 361763, South Korea
Korea Natl Univ Educ, Dept Biol Educ, Chungbuk 363791, South Korea
Russian Acad Sci, Inst Forest, Krasnoyarsk 660036, Russia
Kyushu Univ, Dept Forest Resources Sci, Fukuoka 8112415, Japan
Marie Curie Sklodowska Univ, Dept Biochem, PL-20031 Lublin, Poland

Доп.точки доступа:
Cho, N.S.; Nam, J.H.; Park, J.M.; Koo, C.D.; Lee, S.S.; Pashenova, N...; Ohga, S...; Leonowicz, A...

/ D. A. Mashukov, A. V. Ben'kova, V. E. Ben'kova [et al.] // Russ. J. Ecol. - 2021. - Vol. 52, Is. 5. - P391-398, DOI 10.1134/S1067413621050106. - Cited References:31 . - ISSN 1067-4136. - ISSN 1608-3334РУБ Ecology

Аннотация: In the north-taiga larch forests of Siberia, on permafrost, there is a widespread phenomenon of crown dieback. To reveal the factors causing crown dieback, we have studied the structure of water-conducting system in the stems of stag-headed and healthy trees of Gmelin larch (Larix gmelinii (Rupr.) Rupr.). The analysis of distributions of early (water-conducting) tracheids with respect to the radial lumen diameter at different heights within stems has shown that radial lumen diameters of the most of tracheids decrease along with stem height in all of the studied trees, both healthy and stag-headed; in stag-headed trees, this value was significantly lower than in healthy trees at all heights. The findings confirm the following hypothesis: in the permafrost zone, trees can suffer from water stress, which causes crown dieback in the trees more susceptible to such stress. The high heterogeneity of hydrothermal soil conditions is considered as the main factor determining the differentiation of trees with respect to water stress susceptibility.

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Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forest, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Mashukov, D. A.; Ben'kova, A. V.; Ben'kova, V. E.; Shashkin, A. V.; Prokushkin, A. S.