75 results match your criteria: "Institute of Highland Forest Science[Affiliation]"

A new species of gall-forming aphid from China, gen. et sp. nov.

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Compared with the ordinary single-season shooting among woody bamboos in Poaceae, the attribute of full-year shooting in represents a unique shooting type or mechanism. Nevertheless, except for the overall physiological mechanism, the effect of ecological factors, especially soil microorganisms, on this full-year shooting characteristic remains unclear. In this study, 16S rRNA and ITS rRNA genes were sequenced using the Illumina platform.

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Effect of short-term warming and drought on the methanogenic communities in degraded peatlands in Zoige Plateau.

Front Microbiol

October 2022

Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China.

Peatlands in Qinghai-Tibetan are degrading with climate change and human activities. Peatland degradation and climate change affect methane emissions. Methanogens are key functional microbes during methane production; however, knowledge of methanogens in degraded peatlands is lacking.

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The white wax secreted by the male insects of the Chinese white wax scale (CWWS) is a natural high-molecular-weight compound with important economic value. However, its regulatory mechanism of wax biosynthesis is still unclear. In this study, a weighted gene coexpression network analysis (WGCNA) was used to analyze transcriptome data of first- and second-instar females, early and late female adults, and first- and second-instar males.

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Climate change will significantly affect the distribution area of species. Through establishing distribution model, we can simulate the current and future potential distribution range and provide reference for the introduction and cultivation planning of rare or economic plants. , endemic to Yunnan Province of China, is the strongest woody bamboo in the world.

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Background: The demand for productive economic plant resources is increasing with the continued growth of the human population. Ancient Pu'er tea trees [Camellia sinensis var. assamica (J.

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Improving Effect of the Policosanol from Wax on Learning and Memory Impairment Caused by Scopolamine in Mice.

Foods

July 2022

Key Laboratory of Breeding and Utilization of Resource Insects, National Forestry and Grassland Administration, Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming 650224, China.

Policosanol (PC) is a mixture of long-chain fatty alcohols that exhibits multiple biological activities, such as reducing blood lipid and cholesterol levels, lowering blood pressure, and extenuating liver inflammation. To assess PC’s impact on cognitive behavior and function, PC was prepared from Ericerus pela wax using a reduction method and analyzed using gas chromatography (GC). A total of 60 mice were randomly divided into six groups of 10 animals each: control (0.

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consists of 2 species and 1 variety indigenous to the tropical areas of the Indo-Malayan region. They are evergreen trees for multi-purpose utilization featured by containing azadirachtin. The complete chloroplast (cp) genome of , var.

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Comparative analysis on visual and olfactory signals of Papilio xuthus (Lepidoptera: Papilionidae) during foraging and courtship.

PLoS One

July 2022

Key Laboratory of Breeding and Utilization of Resource Insects of State Forestry Administration, Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, P.R. China.

This study examined the roles of visual and olfactory responses during foraging and courtship in butterfly Papilio xuthus. P. xuthus showed obvious orientation to color in the range of 350-500 nm.

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(Kerr) is an important lac insect extensively used in industrial products in the form of resin, wax and dye. The scarce knowledge on molecular markers for is a barrier in elucidating genetic information. Our study identified a total of 16,921 single-nucleotide polymorphisms (SNPs), and 6231 insertions and deletions (InDels)-of which, intergenic variation accounted for 41.

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As an edible coating substrate, the detection of shellac resin has always been an intractable problem. In this paper, an authentication method of shellac resin in shellac-based edible coatings was established. Results showed that the authentication of shellac resin could be skillfully transformed as the identification of 13 targeted metabolites which were monomer compounds of shellac resin.

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Article Synopsis
  • The baculovirus expression vector system uses insect cells for producing recombinant proteins and is important in biology, farming, and medicine.
  • Researchers developed a new monoclonal cell line, RIRI-PX1-C31, from the Papilio xuthus cell line RIRI-PX1 to enhance protein expression.
  • The study showed that RIRI-PX1-C31 expressed significantly more recombinant β-galactosidase than its parent line and successfully adapted to a serum-free growth medium, further boosting its protein production.
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Soil moisture regulates warming responses of autumn photosynthetic transition dates in subtropical forests.

Glob Chang Biol

August 2022

Earth Systems Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire, Durham, New Hampshire, USA.

Autumn phenology plays a key role in regulating the terrestrial carbon and water balance and their feedbacks to the climate. However, the mechanisms underlying autumn phenology are still poorly understood, especially in subtropical forests. In this study, we extracted the autumn photosynthetic transition dates (APTD) in subtropical China over the period 2003-2017 based on a global, fine-resolution solar-induced chlorophyll fluorescence (SIF) dataset (GOSIF) using four fitting methods, and then explored the temporal-spatial variations of APTD and its underlying mechanisms using partial correlation analysis and machine learning methods.

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Taxonomy, Phylogenetic and Ancestral Area Reconstruction in , with Four Novel Species from Northwestern China.

J Fungi (Basel)

May 2022

Centre for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China.

The members of are biotrophic, obligate plant parasitic fungi featuring a high degree of host specificity. This genus also features a high degree of species richness and worldwide distribution. In this study, four species occurring on leaf and stem of two different species of grass were collected from Shanxi and Shaanxi Provinces, China.

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(Rubiaceae), an evergreen shrub or small tree, is endemic to China and confined to Nujiang Prefecture, Yunnan Province. This plant is of high ornamental value owing to its attractive pink flowers, sweet fragrance, and long flowering period. Due to the influence of climate change and human factors, the distribution range of has exhibited a significant shrinking trend, and it has become a vulnerable species that is in urgent need of conservation and rational utilization research.

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The aphid is an economically important insect that can induce horned galls, which are valuable for the medicinal and chemical industries. Up to now, more than twenty aphid genomes have been reported. Most of the sequenced genomes are derived from free-living aphids.

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An embryonic cell line from the American cockroach Periplaneta americana L. (Blattaria: Blattidae) exhibits susceptibility to AcMNPV.

In Vitro Cell Dev Biol Anim

April 2022

Key Laboratory of Breeding and Utilization of Resource Insects of National Forestry and Grassland Administration, Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, Yunnan Province, 650224, China.

Although the baculovirus expression vector system (BEVS) is widely used in the production of recombinant proteins, only a few lepidopteran insect cell lines have been successfully used so far. This study aimed at evaluating the characteristics of an embryonic cell line from the American cockroach Periplaneta americana L., RIRI-PA1, and determining whether it could be used in recombinant protein expression.

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Overexpression of DsEXLA2 gene from Dendrocalamus sinicus accelerates the plant growth rate of Arabidopsis.

Phytochemistry

July 2022

State Key Laboratory of Tree Genetics and Breeding, Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, 650233, PR China. Electronic address:

Article Synopsis
  • Expansins are proteins that help loosen plant cell walls and are important for cell growth, but their specific roles in fast-growing bamboo are not well understood.
  • In this study, researchers focused on a bamboo species called Dendrocalamus sinicus and cloned a gene named DsEXLA2, which shows similarities to expansin genes in various species and is more expressed in lower parts of the bamboo plant.
  • When this gene was overexpressed in Arabidopsis plants, it resulted in taller plants with thicker stems and larger leaves, along with changes in gene expression that suggest improved growth and response to environmental factors, shedding light on the growth mechanisms in bamboo.
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is a woody plant with economic and medicinal value. As the pharmacological qualities and properties of the wood from this plant primarily depend on its extractives, in this study, the metabolomic analysis of extractives from its stems was carried out using UPLC-MS/MS. A total of 735 metabolites were detected from two groups of samples, heartwood and sapwood, with the largest number of terpenoids in type and the largest number of flavonoids in quantity.

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Insects encounter infection of microorganisms, and they also harbor endosymbiosis to participate in nutrition providing and act as a defender against pathogens. We previously found the Chinese white wax scale insect, , was infected and killed by sp. (pathogen).

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Cephalostachyum pingbianense is the only woody bamboo species that can produce bamboo shoots in four seasons under natural conditions. So far, the regulatory mechanism of shoot bud differentiation and development is unknown. In the present study, indole-3-acetic acid (IAA), zeatin riboside (ZR), gibberellin A3 (GA ) and abscisic acid (ABA) contents determination, RNA sequencing and differentially expressed gene analysis were performed on dormant rhizome bud (DR), growing rhizome bud (GR), and germinative bud (GB) in each season.

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The Chinese white wax scale, , is an insect native to China. It harbors a variety of microbes. The fungus was isolated from and genome sequenced in this study.

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(Lichtenstein, 1796) is an agricultural and forestry pest, but people in some places use it as a delicacy. The complete mitogenome of (GenBank accession number MZ427921) is 15, 498 bp in size, including 13 protein-coding genes, 22 transfer RNAs, two ribosomal RNAs genes, and a noncoding A + T-rich region. The A + T-rich region is located between and .

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Plant diversity and soil properties regulate the microbial community of monsoon evergreen broad-leaved forest under different intensities of woodland use.

Sci Total Environ

May 2022

Institute of Highland Forest science, Chinese Academy of Forestry, Kunming 650224, China; Pu'er Forest Ecosystem Research Station, National Forestry and Grassland Administration of China, Kunming 650224, China. Electronic address:

A key aspect of global forest management, woodland use intensity (WUI) greatly affects the composition and diversity of soil microbial communities, thereby affecting multiple ecosystem functions and services. However, the effects of WUI on soil microbial community composition and enzymatic activities remains unclear. The effects of anthropomorphic alterations to a natural monsoon evergreen broad-leaved forest in terms of the composition and diversity of soil fungal and bacterial communities, was investigated at a site in Yunnan Province, Southwest China.

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Root phosphatase activity aligns with the collaboration gradient of the root economics space.

New Phytol

May 2022

Institute of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, 100871, China.

The adoption of diverse resource acquisition strategies is critical for plant growth and species coexistence. Root phosphatase is of particular importance in the acquisition of soil phosphorus (P), yet it is often overlooked in studies of root trait syndromes. Here, we evaluated the role of root phosphatase activity (RPA) within the root economics space and the order-based variation of RPA, as well as the correlations between RPA and a suite of leaf traits and soil properties over a range of evergreen tree species in a subtropical forest.

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