Brown planthopper (BPH) is a notorious pest of rice plants attacking leaf sheaths and seriously affecting global rice production. However, how rice plants respond against BPH remains to be fully understood. To understand systems metabolic responses of rice plants to BPH infestation, we analyzed BPH-induced metabolic changes in leaf sheaths of both BPH-susceptible and resistant rice varieties us...

Rice bran, a by-product of brown rice milling, is a rich source of dietary fiber and protein, and its usage as a functional food is expected to increase. In this study, immunomodulatory effects of glycoprotein obtained from rice bran were studied in normal mice and mouse models of cyclophosphamide-induced immunosuppression. We prepared glycoprotein from rice bran by using ammonium precipitation...

Red rice is a troublesome weed in rice-growing areas of the southern U.S. Red rice in Arkansas may be diverse enough to warrant some adjustments in weed control programs. A study was conducted at the Rice Research and Extension Center (RREC), Stuttgart, Ark., in 2003 to determine the phenotypic diversity of red rice in Arkansas. One hundred thirty-six red rice accessions were collected from 26 ...

The brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae), a major pest of rice in Asia, is able to successfully puncture sieve tubes in rice with its piercing stylet and then to ingest phloem sap. How BPH manages to continuously feed on rice remains unclear. Here, we cloned the gene NlSEF1, which is highly expressed in the salivary glands of BPH. The NlSEF1 protein has EF...

One major concern regarding the release of Bt rice is its potential impact through tritrophic interactions on nontarget arthropods, especially natural enemies. We studied the effects of two Bt transgenic rice varieties, TT9- 3 and KMD1, expressing Cry1Ab/Cry1Ac and Cry1Ab, respectively, on a predatory ground spider [Ummeliata insecticeps (Bösenberg et Strand)] supplied with Bt rice-fed brown p...

Background Little is known about rice consumption, related food intake patterns, and the nutritional contribution that rice provides in the diets of Americans. Objective To provide information about rice consumption in the United States and the diets of rice consumers. Design Data come from the Continuing Survey of Food Intakes by Individuals (1994-1996) and the National Health and Nutrition Ex...

Rice is more elevated in arsenic than all other grain crops tested to date, with whole grain (brown) rice having higher arsenic levels than polished (white). It is reported here that rice bran, both commercially purchased and specifically milled for this study, have levels of inorganic arsenic, a nonthreshold, class 1 carcinogen, reaching concentrations of approximately 1 mg/kg dry weight, arou...

Brown rice has physical and sensory characteristics that are less favorable despite its high content of nutrition phytochemical. The germination process is one way to improve increase the acceptance brown rice. objective research was determine time varieties on chemical germinated conducted in RAL with 2 factors, (24, 48, 72 hours) (Mentik susu, Ciherang, Pandan wangi). data obtained were proce...

Many varieties of transgenic rice are under development in countries where wild and weedy relatives co-occur with the crop. To evaluate possible risks associated with pollen-mediated transgene dispersal, we conducted a two-year survey in Vietnam to examine overlapping flowering periods of rice (Oryza sativa L.), weedy rice (O. sativa), and wild rice (O. rufipogon Griff.), all of which are inter...

Abstract The effects of milling, washing, and cooking on etofenprox, flubendiamide, tebufenozide levels in brown polished rice were investigated by HPLC using a UV detector. reduction rates after milling 68.74–93.16%, 64.49–90.25%, 69.74–92.58%, respectively, 11.64–41.44%, 31.36–65.37%, 31.61–73.79%, washing rice, 30.85–82.08%, 52.13–83.05%, 43.04–83.89%, rice. residue the three pesticides decr...