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pollination; random amplified polymorphic DNA technique; seeds; Liquidambar styraciflua; seedlings; clones; somatic embryogenesis; plant morphology; 2,4-D; genotype; micropropagation; interspecific hybridization; stomata; Liquidambar formosana; culture media
Abstract:
... Cultures were initiated from immature seeds derived from controlled pollinations between two sweetgum species (Liquidambar styraciflua and L. formosana) cultured on two induction media supplemented with 2,4-dichlorophenoxyacetic acid. Repetitive embryogenic cultures capable of producing somatic seedlings were obtained from 2% of the 1,020 seeds cultured, representing nine crosses between L. styrac ...
... Cryopreservation has become an essential tool for operational application of forest tree embryogenic cultures, due to the long evaluation periods needed for trees regenerated from these cultures. Five yellow-poplar (Liriodendron tulipifera) and seven sweetgum (Liquidambar spp.) embryogenic culture lines were stored in liquid nitrogen for 48 hours, after which they were thawed and tested for regrow ...
... Cultures of the Formosan sweetgum (Liquidambar formosana Hance) were established from axillary buds of intact plants and from petiole segments of in vitro grown leaves. Petiole segments were generally slower than axillary buds to form multiple shoot cultures. Thidiazuron in combination with 6-benzylaminopurine produced on average up to 9.4 shoots per explant. Shoot elongation was significantly aff ...
insect growth; food plants; artificial diets; body weight; food conversion; mass rearing; mortality; body size; digestibility; Liquidambar formosana; insect rearing; Lymantria
Abstract:
... Lymantria xylina Swinhoe (Lepidoptera: Lymantriidae) is a serious defoliator of hardwood and fruit trees in Taiwan. The larvae of L. xylina feed on >63 species of host plants, belonging to 29 families. Because a large number of larvae are needed for the production of nucleopolyhedrosis virus (NPV) or other related studies, the development of a suitable artificial diet is very important for the mas ...
... Conventional breeding of Chinese sweetgum is constrained by its long-reproductive cycle, which includes long-juvenile periods, and by its complex reproductive characteristics, including self-incompatibility and a high degree of heterozygosis. Like other tree species, sweetgum has undergone relatively little domestication; the methodology described here in illustrates the possibility of transformin ...
... 1. Autochthonous sources of organic matter appear to make a minor contribution to food webs in temperate forest streams, but their roles in supporting consumer biomass in tropical lotic environments have received little attention. We investigated the importance of autochthonous and allochthonous food sources to Brotia hainanensis (Pachychilidae), a detritivorous and algivorous snail common in Hong ...
... Plant diversity is high in the tropics, resulting in leaf litter of differing quality in streams that may affect feeding and fitness of shredders. The effects of leaf toughness and nitrogen content on feeding and fitness (pupal weight) of a Hong Kong shredder, Anisocentropus maculatus (Trichoptera : Calamoceratidae), were investigated in laboratory feeding trials that included leaves from five pla ...
... The relationship between biodiversity and ecosystem functioning (B-EF) was investigated by examining top-down effects of aquatic detritivore diversity on the functional process of leaf-litter breakdown. This study was undertaken in tropical Hong Kong where the stream detritivore guild is depauperate and loss of one or a few species might have strong effects on processes. Effects of detritivore ric ...
... The abilities of 10 filamentous fungi, isolated from Pinus massoniana-Liquidambar formasana mixed forest (PLF), to decompose fresh, fallen needle and leaf litter were studied with pure-culture tests. The results showed that all fungi except Mucor sp. and Chaetomium bostrychodes could drive mass loss of L. formasana leaf litter significantly more than that of P. massoniasa. Mass loss of litter in t ...
... In a 5-year field trial, we examined plant productivity and soil organic matter decomposition on plots with a mixture of Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) and broadleaved trees. We compared pure fir (PF) plots to two mixed plots (2:1 ratio of fir to broadleaved trees): MP1 (C. lanceolata and Liquidambar formosana Hance) and MP2 (C. lanceolata and Alnus cremastogyne Burk). The mix ...
genetic transformation; salt tolerance; in vitro regeneration; transgenes; sucrose; Agrobacterium radiobacter; gene expression regulation; mannose; antiporters; mannose-6-phosphate isomerase; micropropagation; protein content; Liquidambar formosana; culture media; enzyme activity
Abstract:
... A mannose selection system was adapted for use in the Agrobacterium-mediated transformation of Liquidambar formosana L. This system makes use of the pmi gene, which encodes phosphomannose isomerase. This protein converts mannose-6-phosphate to fructose-6-phosphate. Leaf explants from an axenic plant of L. formosana L. were infected with Agrobacterium. The gene AtNHXI was transformed into L. formos ...
... Odontotermes formosanus (Shiraki) (Isoptera: Termitidae) is one of the most destructive plant pests in China, which control relies mainly on baits strategies. Baits made from the wood of eight different tree species were used to study the feeding preference of this termite, and conversely wood protection strategies of the tree species. Three bait types were used to identify wood protection strateg ...
... ETNOPHARMACOLOGICAL RELEVANCE: Neuraminidase (NA) inhibitors are currently the most effective drugs to treat influenza A viruses infection. Many traditional Chinese medicines (TCMs) have been used in the clinics to treat influenza. The anti-viral mechanisms of these TCMs and their inhibitory effects towards NA need to be systematically tested. AIM OF THE STUDY: To evaluate the anti-NA activity of ...
... Two new pentacyclic triterpenes and eight known pentacyclic triterpenes were isolated from the petroleum ether extract of Liquidambaris Resina. The structural elucidation of these compounds was determined by spectroscopic data interpretation. Their cytotoxic and antiplatelet aggregation activities were examined to find potent cytotoxic and antiplatelet aggregation compounds from natural resources. ...
... Formosan sweet gum (Liquidambar formosana Hance) is a tree species endemic in Taiwan. In this study, the composition of balsam from L. formosana has been determined by several chromatographic and spectroscopic techniques. Among the 26 compounds identified, three new triterpenoids were detected, namely, 2α,3α-dihydroxyolean-12-en-28-al (1), 3α-hydroxyolean-12-en-30-ol (2), and 3α-hydroxyolean-2-oxo ...
... Two new lupene-type triterpenoids, 3β,6β-dihydroxylup-20(29)-en-28-oic acid β-glucopyranosyl ester (1) and 2α-acetoxyl-3β,6β-dihydroxylup-20(29)-en-28-oic acid β-glucopyranosyl ester (2), along with 18 known compounds, were isolated from Liquidambar formosana. The structures were elucidated on the basis of spectroscopic methods, including UV, IR, ESIMS, 1D- and 2D-NMR experiments, as well as by co ...
Liquidambar formosana; Quercus; biomass; carbon; deciduous forests; fine roots; forest management; nutrient uptake; soil depth; tree trunk; trees
Abstract:
... The aim of this study was to compare fine root (≤2 mm diameter) traits (i.e. biomass distribution and architecture) of three tree species (Alniphyllum fortunei, Liquidambar formosana and Cyclobalanopsis glauca) growing in a mixed-species stand in a subtropical forest. Fine root samples were collected using soil cores. The collected samples were scanned with the Win-RHIZO system to analyse architec ...
... Anthropogenic nitrogen (N) deposition is an expanding problem that affects the functioning and composition of forest ecosystems, particularly the decomposition of forest litters. Legumes play an important role in the nitrogen cycle of forest ecosystems. Two litter types were chosen from Zijin Mountain in China: Robinia pseudoacacia leaves from a leguminous forest (LF) and Liquidambar formosana lea ...
Cinnamomum camphora; Cunninghamia lanceolata; Liquidambar formosana; Lithocarpus; Pinus massoniana; Schima superba; conifers; deep tillage; mountains; plantations; soil aggregation; soil properties; soil water; trees; water conservation; China
Abstract:
... Eighteen indices were selected to evaluate soil and water conservation capacities of four different mixtures of plantations using the Ideal Point Method. Results indicate that a broadleaf plantation of robur (Lithocarpus glabra) and Chinese guger tree (Schima superba) had the best conservation capacity, a mixed broadleaf plantation of sweetgum (Liquidambar formosana), Chinese gugertree and camphor ...