14 results match your criteria: "Research Institute of Forestry and Pomology[Affiliation]"

Endogenous cell wall degrading enzyme LytD is important for the biocontrol activity of .

Front Plant Sci

April 2024

Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China.

Autolysins are endogenous cell wall degrading enzymes (CWDEs) in bacteria that remodel the peptidoglycan layer of its own cell wall. In the genome, at least 35 autolysin genes have been identified. However, the study of their roles in bacterial physiology has been hampered by their complexity and functional redundancy.

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Temperature is one of the most important environmental factors affecting grape season growth and geographical distribution. With global warming and the increasing occurrence of extreme high-temperature weather, the impact of high temperatures on grape production has intensified. Therefore, identifying the molecular regulatory networks and key genes involved in grape heat tolerance is crucial for improving the resistance of grapes and promoting sustainable development in grape production.

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Article Synopsis
  • Extreme temperatures negatively impact grape production, and the study focuses on a DREB gene (VvDREB2c) that plays a crucial role in plant responses to heat stress.
  • Characterization of VvDREB2c shows it is located in the nucleus and interacts with various stress-related elements, enhancing drought and heat tolerance in grapes.
  • Overexpression of VvDREB2c leads to improved photosynthesis, reduced light damage, and hormonal regulation through the MAPK pathway, offering insights into increasing heat tolerance in plants.
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Background: Bud sport mutation occurs frequently in fruit plants and acts as an important approach for grapevine improvement and breeding. 'Jinzao Wuhe' is a bud sport of the elite cultivar 'Himord Seedless' with obviously enlarged organs and berries. To date, the molecular mechanisms underlying berry enlargement caused by bud sport in grapevines remain unclear.

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Article Synopsis
  • - High temperatures lead to early grape leaf aging, softening of berries, and reduced fruit production, negatively impacting grape quality and yield.
  • - The study evaluated the effects of different shade nets (green, blue, black, gray) on "Jumeigui" grapes, with gray nets showing the best light transmission and cooling effects, thereby alleviating heat-related softness in the grapes.
  • - Quality assessments indicated that TSS levels were sufficiently high (exceeding 18 °Brix) for gray, blue, and green nets, while unshaded grapes suffered from heat stress; overall, gray and blue nets produced superior grape quality compared to black nets.
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Interaction of VvbZIP60s and VvHSP83 in response to high-temperature stress in grapes.

Gene

February 2022

Research Institute of Forestry and Pomology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Shanghai Key Labs of Protected Horticultural Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China. Electronic address:

Article Synopsis
  • - The impact of extreme high temperatures during grape ripening prompts the need for developing grape varieties that can withstand heat, leading to research on their mechanisms of tolerance.
  • - The study identifies the role of the transcription factor bZIP60 and its derivative VvbZIP60s in the plant's response to high temperatures, highlighting VvbZIP60s as crucial for heat stress adaptation.
  • - VvbZIP60s interacts with another key protein, VvHSP83, which assists in repairing damaged proteins under stressful conditions, providing insights into how grapes can better resist heat stress.
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  • - The study examined how high temperatures (45°C) impact the photosynthesis of two grapevine varieties, Shenyue and Shenfeng, in controlled conditions, revealing detrimental effects on key photosynthetic processes.
  • - Key findings included significant reductions in Rubisco activity and the efficiency of the photosystems, indicating that high temperatures disrupt the oxygen-evolving complex essential for photosynthesis.
  • - Results also showed that Shenyue exhibited greater heat tolerance and better photosynthetic performance compared to Shenfeng, emphasizing the link between photosynthetic efficiency and resistance to environmental stressors.
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De novo assembly of the Mylia taylorii transcriptome and identification of sesquiterpene synthases.

Arch Biochem Biophys

February 2021

Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, PR China; Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, PR China; SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, PR China. Electronic address:

Mylia taylorii is an ancient nonseed land plant that accumulates various sesquiterpenes with insecticidal and antibacterial activities. Recently, microbial-type sesquiterpene synthases (STSs) with atypical aspartate-rich metal ion binding motifs have been identified in some liverworts. Here, transcriptome analysis of M.

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Ectopic expression of a grape nitrate transporter VvNPF6.5 improves nitrate content and nitrogen use efficiency in Arabidopsis.

BMC Plant Biol

December 2020

Research Institute of Forestry and Pomology, Shanghai Key Lab of Protected Horticultural Technology, Shanghai Academy of Agricultural Sciences, Shanghai, China.

Article Synopsis
  • Nitrate is crucial for grapevine growth, but how it is absorbed and used at the molecular level needs further exploration.
  • The study identifies VvNPF6.5, a nitrate transporter in grapevines, which is mainly located in the plasma membrane, is expressed in roots and stems, and increases in activity when nitrate is present.
  • VvNPF6.5 enhances nitrogen use efficiency and contributes to nitrate signaling by regulating primary nitrate response genes.
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To investigate the hypoglycemic effect and potential mechanism of pumpkin polysaccharides and puerarin on type II diabetes mellitus (T2DM) mice, mice were fed a high-fat diet and injected intraperitoneally with streptozotacin to induce T2DM. After eight weeks of drug administration, blood samples were withdrawn from tail veins of mice that had been fasted overnight. The results showed that both pumpkin polysaccharides and puerarin, as well as a pumpkin polysaccharides and puerarin combination, could ameliorate T2DM.

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  • Cluster thinning positively influences the anthocyanin biosynthesis in grape berry skins, leading to increased anthocyanin content and overall berry quality.
  • During the study of 'Summer Black' grapes, it was found that while berry weight and acidity remained unchanged, soluble solids and anthocyanins notably increased with cluster thinning.
  • Key genes involved in anthocyanin production showed significant changes in expression levels: most were up-regulated, while specific genes like F3'H were down-regulated, suggesting a shift in the anthocyanin profile due to this practice.
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Article Synopsis
  • - The study investigates how high-temperature stress affects grapevines differently in controlled environments versus field conditions, focusing on photosystem II (PSII) activity and the expression of heat-responsive genes, including the heat shock protein HSP21.
  • - Grape plants exposed to high temperatures (42°C) showed signs of heat acclimation, including recovery in chlorophyll fluorescence and increased expression of heat-related genes and proteins after the heat treatment.
  • - The research highlights that critical temperatures impact various components of PSII and that differences in grapevine response under controlled versus field conditions can be linked to environmental factors and the inherent vigor of the plants.
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Article Synopsis
  • * At 35 °C, grapevines showed no significant changes in Photosystem II (PS II) activity or heat-shock proteins (HSPs), but at 45 °C and over 40 °C in natural settings, they experienced notable changes, suggesting PS II can be protected at higher temperatures.
  • * There was a marked difference in heat stress responses between Kyoho and Jumeigui grapevines, with Jumeigui being more adversely affected, indicating variations are due to environmental factors, plant
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Structural and biochemical insights into nucleotide-rhamnose synthase/epimerase-reductase from Arabidopsis thaliana.

Biochim Biophys Acta

October 2015

State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China. Electronic address:

L-Rhamnose (Rha) is synthesized via a similar enzymatic pathway in bacteria, plants and fungi. In plants, nucleotide-rhamnose synthase/epimerase-reductase (NRS/ER) catalyzes the final step in the conversion of dTDP/UDP-α-D-Glc to dTDP/UDP-β-L-Rha in an NAD(P)H dependent manner. Currently, only biochemical evidence for the function of NRS/ER has been described.

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