In recent years, with the extensive application of molecular biology techniques in the development of biological systems and other fields, there have been increasing reports on the application of PCR-based molecular biology techniques in the detection and identification of plant pathogens.
In the research and application of phytopathogenic fungi, the phylogenetic study of the predatory nematode fungus Arthrobacter spp. was carried out by PCR-RFLP method, which basically reflected the genetic relationship among different species in the genus, and proved the morphology of the Arthrobacter spp. from the molecular level. The rationality of the classification, while raising the doubts about the expansion of the genus sign; PCR amplification of the ITS region of the ribosomal genes of cotton blight bacteria, Phytophthora capsici, and the product was cloned and sequence comparison; Cooke et al. The ITS sequences of 16 species of Phytophthora ribosomes showed that there were abundant interspecies variation among different species of Phytophthora, while the sequences of different strains of the same species were highly conserved. According to the sequence analysis of ITS, the phylogenetic trends of Phytophthora oomycetes were proposed. .
In a word, the rapid diagnosis instrument for ribosomal gene ITS region has become more and more widely used in the diagnosis of various plant diseases. Based on the sequence differences of rDNAITS, various plant pathogens have been identified, providing reliable and early diagnosis of plant diseases. The basis for the future classification and molecular epidemiological investigation and other more in-depth research work laid the foundation for the prevention and control of plant diseases is also of great significance, but also to further identify the source of crop disease resistance, auxiliary crop disease resistance breeding.
Conveyor Idler Roller Bearing is rolling element bearing used in conveyor system. Usually use Deep Groove Ball Bearing in bulk Conveyor Idler Roller, which plays a role of reducing the friction among the components. Heavy (or bulk) conveyors often endure contaminants and dirty in harsh environment. The most important part of idler roller is bearing. It is unique design deep groove ball Bearing For Conveyor Idler that meet all challenges: extremely different temperatures, low-speed, bulk materials handling, humidity, dust, dirt, as well as noise and vibration environments.
Conveyor Bearing usually need large Clearance such as C3/C4, Reinforce iron retainer or unique nylon retainer(superior anti-static and anti-sticking) and inner/Outer rings, Sealed type, with good anti-sticking performance. While cannot use standard Bearing, they will cause big running resistance, brake and reduce lifetime of bearing.
Main Products:
6200/6300 series deep groove Ball Bearing 6200/6300 series is well suited for low to heavy radial loads and can be configured for various application speeds and running precision requirements. Reinforced iron Retainer, Super-finished deep groove, smooth race, thicker inner and outer ring.6204---6310 6204/C3---6310/C3 6204/C4---6310/C4
6204KA---6308KA 6204KA/C3---6308KA/C3 6204KA/C4---6308KA/C4
6204-2RS---6310-2RS 6204-2RZ---6310-2RZ 180204---180308
60204---60310 6204KA-Z---6308KA-Z 6204TN-Z---6308TN-Z
With more than 10 years of conveyor bearing experience, we can assist you with selecting the appropriate bearings for your system. Welcome to visit our Factory. If you have any questions, please contact with us directly.
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