Forestry Studies in China
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Liquefaction and product identification of main chemical compositions of wood in phenol
Forestry Studies in China - - 2005
Active organic carbon pool of coniferous and broad-leaved forest soils in the mountainous areas of Beijing
Forestry Studies in China - Tập 11 - Trang 225-230 - 2009
In order to explore the effects of different forest types on active soil carbon pool, the amounts and density of soil organic carbon (SOC) were studied at different soil horizons under typical coniferous and broad-leaved forests in the mountainous area of Beijing. The results showed that the amount of total SOC, readily oxidizable carbon and particulate organic carbon decreased with increasing dep......
Application of an expert knowledge system in the study of forest spatial patterns
Forestry Studies in China - Tập 10 - Trang 52-55 - 2008
For the sake of exploring how the pattern of Chinese pine (Pinus massoniana Lamb) community changed after the invasion of the pine wood nematode (Bursaphelenchus xylophilus (Steiner & Buhrer) Niclde) in Zhoushan, Zhejiang Province, we established a test area in the local Chinese pine community. Landsat5 TM images from 1991 and 2006 were integrated with auxiliary data from field investigation and s......
Effect of NaCl on growth and ion relations in two salt-tolerant strains of Paxillus involutus
Forestry Studies in China - Tập 10 - Trang 95-100 - 2008
The effect of NaCl on growth, biomass and ion relations of two salt-tolerant isolates of Paxillus involutus, MAJ and NAU were investigated. The two Paxillus strains were exposed to the following concentrations of NaCl: 0, 100, 200 and 500 mmol·L−1. Growth of MAJ and NAU was enhanced by 100 mmol·L−1 NaCl but severely inhibited at the concentration of 500 mmol·L−1. NAU exhibited a greater capacity t......
Pistil development in 2 types of flowers of Xanthoceras sorbifolia
Forestry Studies in China - Tập 6 - Trang 13-16 - 2004
In order to investigate flower development and female abortion during sex differentiation of Xanthoceras sorbifolia, anatomical observations and comparative study on differential proteins were carried out in different developmental stages of two types of flowers of this species. It was found that the selective abortion happened in male flower before the formation of megasporocyte. Special proteins......
A constitutive model for uni-axial compaction of non-adhesive corn stalk powder
Forestry Studies in China - Tập 6 - Trang 46-49 - 2004
In order to study mechanical behaviors of corn stalk powder during the compaction, the yield criterion for corn stalk powder is proposed with a plasticity theory. From the stress-strain curves of uni-axial compaction test for corn stalk powder, the constitutive model, in which the equations are modified by experiments on corn stalk powder, is adopted to describe plastic behaviors of powder, and is......
Solubility of wood-cellulose in LiCl/DMAC solvent system
Forestry Studies in China - Tập 9 - Trang 217-220 - 2007
A LiCl/DMAC solvent system was used to dissolve wood-cellulose with aims to broaden its application in preparing functional materials of modified wood-cellulose. We studied the dissolubility complexion of wood-cellulose in a LiCl/DMAC solvent system, made sure of the important function of LiCl in a cellulose solvent, and further confirmed its dissolution mechanism via the measurement of infrared s......
Cloning and RNAi construction of a LEAFY homologous gene from Populus tomentosa and preliminary study in tobacco
Forestry Studies in China - Tập 7 - Trang 15-21 - 2005
PtLFY, a LEAFY (LFY) gene, was cloned from Populus tomentosa (LM50) by PCR. Sequencing analysis indicated that PtLFY was 2 629 bp long, composed of three exons and two introns and encoded 378 amino acids. The splice donor sites and the splice acceptor sites were in identical positions to the LFY and its homologues. The amino acid sequence inferred was 68%-99% homologous to those o......
Cloning and analysis of cross-intron genomic gene encoding ACO in Paeonia suffruticosa Andr.
Forestry Studies in China - Tập 14 - Trang 291-298 - 2012
The last step of ethylene biosynthesis in higher plants is to convert 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene by ACC oxidase (ACO). In our investigation, a cross-introns genomic DNA gene encoding ACC oxidase, PsgACO, was isolated from Paeonia suffruticosa. It revealed that PsgACO (FJ855434) has 1281 bases, containing four exons and three introns, encoding 312 amino acids. The four ......
Establishment of cell suspension line of Populus tomentosa Carr.
Forestry Studies in China - Tập 10 - Trang 158-161 - 2008
Leaves of fine Populus tomentosa genotype TC152 were used as explants to establish cell suspension lines. The effects of plant growth regulators on callus induction and establishment of cell suspension lines were studied. The callus induction rate was the highest on a MS solid medium supplemented with 1.0 mg·L−1 2,4-D. A cell suspension line could be obtained by inoculating calli which were not su......
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