Be careful of the outbreak of Brown planthopper (BPH) due to drought. The Brown Planthopper (BPH) Nilaparvata lugens (Stål) has become a number one threat to tropical rice production in many parts of Asia in the last three decades (Dale, 1994). All of the backcross lines of Marquis, each with its own resistance gene, have been used as host differentials to identify races of pathogens. Guttikonda H, Thummala SR, Agarwal S, Mangrauthia SK, Ramanan R, Neelamraju S. Sci Rep. 2020 Mar 17;10(1):4873. doi: 10.1038/s41598-020-60922-6. Twenty-one major genes for BPH resistance have been identified by Integrated Pest Management (IPM) aims to avoid harming natural crop spiders. All the BPH-resistance genes identified to date have been from indica rice or wild species. Few studies actually investigate the effects of insecticides other than their direct toxicity (usually LD50) on non-target animals. It infests and kills the rice … BMC Genomics. Such studies are not often done, presumably because of their costs and methodological difficulties (Vollrath et al., 1990; Volkmar et al., 1998, 2002, 2004). Scientifically, understanding how a single genotype can respond to environmental cues to produce the appropriate morphological and behavioural phenotype is a complex and important problem but why do not more animals respond to their environment in this way? Here, an integrated miRNA and mRNA expression profiling analysis was performed on … These include eight First Desaturase family genes, one cytochrome b5 fused desaturase gene (Nlug-Cytb5r) and one Sphingolipid Desaturase gene (Nlug-ifc). 1986, 1987). Sasamoto (1958, 1960, 1961) investigated the relationship between Si content of rice and behavior of stem borer (Chillo suppressalis Walker). The development of hybrid rice is a practical approach for increasing rice production. The rice brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae), is one of the most serious pests of rice in Asia. (1987) studied the inheritance in Indian mustard and suggested the W1W1 gene symbol for non-waxiness and w1w1 gene for waxiness. Growing resistant varieties is the most effective and environment-friendly strategy for protecting the crop from BPH. In the present study, … In the past, a number of genetic studies on disease- and insect-pest-resistant varieties were conducted. Penicillium funiculosum can smother various fungi in culture and thus prevent pineapple fruit diseases (Lim and Rohrbach 1980). Therefore, identification of resistance genes against different insect-pests is of paramount importance for the development of insect-resistant transgenic plants. Among the most important are the, Target Receptors in the Control of Insect Pests: Part I, Karunker et al., 2009; Puinean et al., 2010, Insect Biochemistry and Molecular Biology, Number of the larvae bored into the rice stems. Brown planthopper (BPH) outbreak in Thanjavur District, Tamil Nadu. Here we show that expression of the majority of PALs in rice is significantly induced by BPH feeding. Brown planthopper (BPH) is one of the most destructive insects affecting rice (Oryza sativa L.) production. He found that most larvae moved to the stem with low Si content. Host-plant resistance is the most desirable and economic strategy in the management of BPH. This site needs JavaScript to work properly. Although rice varieties containing major genes for resistance to the brown planthopper exhibit high levels of planthopper resistance, other management practices may nonetheless be critical for the sustainable use of these varieties. 1989); in high concentrations, the parasite inhibits the conidial germination and hyphal growth of its host, apparently through competition for nutrients. Gener- The brown planthopper (BPH), Nilaparvata lugens Stål, is one of the major pests of rice. However, little is known about the mechanisms responsible for the development, wing dimorphism and sex difference in this species. 2010 Dec 3;9(12):6774-85. doi: 10.1021/pr100970q. ( A ) Histochemical…, OsMYB30 binds to the AC-like elements in the promoters of OsPAL6 and OsPAL8…, NLM Host-plant resistance is an important strategy to reduce the damage caused by BPH and increase rice productivity. Epub 2015 Dec 5. Dark types have body color of brown or dark brown; light color types have tawny body color. Host plant resistance is an effective, economic and environmentally friendly approach to control crop pests. These are the brown planthopper (BPH), Nilaparvata lugens (Stal); and the whitebacked planthopper (WBH), Sogatella furcifera (Horvath). However, the brown planthopper (BPH), Nilaparvata lugens Stål, causes severe yield loss of rice (Oryza sativa L.) and can threaten food security. It is alarming that a sharp increase in the … What it does High populations of planthoppers cause leaves to initially turn orange-yellow before becoming brown and drying. The fungus coils over hyphae and conidia of its host and kills them (Peresse and Le Picard 1980) with a fungistatic sesquiterpene metabolite, deoxyphomenone (Tirilly et al. We examined ways in which the Brown planthopper induced008a (Bphi008a; AY256682) gene of rice (Oryza sativa) enhances the plant's resistance to a specialist herbivore, the brown planthopper (BPH; … Till to date, 38 BPH resistance loci have been mapped from cultivated and wild species of rice. The Brown Planthopper (BPH) Nilaparvata lugens (Stål) has become a number one threat to tropical rice production in many parts of Asia in the last three decades (Dale, 1994). Constitutive and inducible volatile compounds, including terpenes such as linalool, may be involved in host-plant finding by planthoppers (Xin et al., 2012). bph の定義が複数ある場合がありますので、bph のすべての意味については辞書で 1 つずつチェックしてください。 英語で定義:Brown Planthopper BPHの他の意味 The brown planthopper (BPH), Nilaparvata lugens Stål, is one of the major pests of rice. BPH is a small brown insect found mainly on the base of rice plants above the water level. Three brown longitudinal convex ridges can usually be observed on the back of adults. Hansfordia (Dicyma) pulvinata is a destructive parasite on many dematiaceous conidial fungi (Hepperly 1986), particularly Cercospora (Hawksworth 1981b), but also Passalora (Mycovellosiella, Cladosporium, Fulvia) fulva on tomato (Peresse and Le Picard 1980; Le Picard and Trique 1987), and P. (Cercosporidium, Phaeoisariopsis) personata on peanut leaves (Mitchell et al. Brown planthopper (BPH; Nilaparvata lugens Stål) is one of the most destructive insect pests of rice in Asia-Pacific region, often causing hopper burn and severe yield loss due to its monophagy and migration ability (Normile 2008).Presently, spraying insecticides (e.g. Altered expression of PALs significantly…, Altered expression of PALs significantly impacts BPH resistance. Please enable it to take advantage of the complete set of features! By continuing you agree to the use of cookies. He found that the stems attacked by the stem borer contained less Si. Because resistance in these lines was conditioned by single major genes, and because phenotyping was a relatively straightforward process, brown planthopper resistance was transferred relatively quickly to cultivars with improved semidwarf plant types and good grain quality. We found that the expression of the rice DELLA gene OsSLR1 was down‐regulated by an infestation of female adults of the brown planthopper (BPH) Nilaparvata lugens. A considerable effort has been devoted to the mapping of root-related QTLs in rice. K. Samiayyan, in Integrated Pest Management, 2014. The ensuing decades saw the release of numerous other brown planthopper-resistant lines with other genes for resistance and the development of additional planthopper biotypes (Alam and Cohen, 1998; Bottrell and Schoenly, 2012). 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