کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5744212 1618112 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Original articleLitter quality control of decomposition of leaves, twigs, and sapwood by the white-rot fungus Trametes versicolor
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش خاک شناسی
پیش نمایش صفحه اول مقاله
Original articleLitter quality control of decomposition of leaves, twigs, and sapwood by the white-rot fungus Trametes versicolor
چکیده انگلیسی


- Decomposition by Trametes versicolor was higher in leaves and twigs than in heartwood.
- Decomposition was higher in broad-leaved than in coniferous litter.
- Low nitrogen limited the decomposition in twigs and sapwood.
- FT-IR spectroscopy showed that G units of lignin inhibited the decomposition.

Litter quality plays predominant roles in plant litter decomposition by modifying the activity of decomposer fungi, but little is known about the response of the decomposing activity of individual fungal strains to variations in litter quality. In the present study, the variability in the decomposing ability of a single fungal strain (Trametes versicolor IFO30340) was quantified under pure culture conditions to elucidate litter quality measures that control the decomposition. We used a total of 72 litters from 51 plant species, including leaves, twigs, sapwood, bark, heartwood, and petioles of broad-leaved trees, coniferous trees, and grass. Mass loss of litter caused by the fungus ranged from 0.9 to 59.8% of the original litter mass, was significantly higher in leaves, twigs, and petioles than in heartwood, and was significantly higher in broad-leaved than in coniferous litter. Tissue type (leaf, sapwood, or twig) and the relative amount of acid-unhydrolyzable residues to total nitrogen were selected as predictor variables of the mass loss of litters. Fourier transform infrared (FT-IR) spectroscopy showed that guaiacyl units of lignin negatively affected the fungal decomposition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Soil Biology - Volume 80, May–June 2017, Pages 1-8
نویسندگان
, , , ,