Brassica campestris

The second chemical, identified as 2-phenylethyl isothiocyanate (3) was found in the edible parts of turnips (Brassica campestris var. 

The interaction of weeds with crops may be positive too. In a study, controlled densities of wild mustard (Brassica campestris L. var. italica) interplanted with broccoli (Brassica oleracea var. italica Premium Crop) increased the yield by 50% (Jimenez-Osomio and Gliessman 1987). 

Wheat, soft Triticum aestivum L. Chinese cabbage Brassica campestris L. 

Allelopathic Interference in a Wild Mustard (Brassica campestris L.) and Broccoli (Brassica oleracea L. var. italica) Intercrop Agroecosystem... 

Non-crop plants associated with the crop species offer possibilities for allelopathic weed control. In this study Brassica campestris (wild mustard), which is an important weed in Santa Cruz County, and broccoli, a common crop, were intercropped, The allelopathic potential of both species and the changes in this potential throughout their life cycle were demonstrated with experiments in the laboratory. Effects of different planting densities and sowing time of canpestris on the crop yield are analyzed. Preliminary steps to separate the physiologically active compound(s) are described. The possibilities for the use of Brassica campestris in agroecosystem design as a non-crop plant that promotes pest control are described. 

Table I. Number or Experiments, Kind and Concentration of Extracts, Ages of Plants, and Indicator Species Utilized to Detect Allelopathic Potential of Brassica campestris L. and Brassica oleracea var. italica...

Figure 1. Percentage of Inhibition of Radicular Growth of Hordeum vulgare and Vicia atropurpurea Produced by Extracts from Dry and Fresh Material of Different Parts of Brassica campestris. N = 30. p = 0.05%...

Suzuki, M., Nagata, T., and Terahara, N., New acylated anthocyanins from Brassica campestris var. chinensis, Biosci. Biotechnol. Biochem., 61, 1929, 1997. 

A dithiocarbamate, named 1-methoxybrassinin (228), along with its 1H-parent, has been isolated from Brassica campestris (Chinese cabbage) infected with Pseudomonas cichorii. These compounds are not derived from glucosinolates (see Section HIE,5) and possess moderate antifungal activity (86CC1077). 

Beversdorf, W.D., J. Weiss-Lerman, L.R. Erickson, and V. Souza Machado (1980). Transfer of cytoplasmically-inherited triazine resistance from bird s rape to cultivated oilseed rape (Brassica campestris and B. napus). Can. J. Genet. Cytol., 22 167-172. 

Burke, J.J., R.F. Wilson, and J.R. Swafford (1982). Characterization of chloroplasts isolated from triazine-susceptible and triazine-resistant biotypes of Brassica campestris L. Plant Physiol., 70 24—29. 

Jimenez-Osornio J. J., S, R. Gliessman. Allelopathic interference in a wild mustard (Brassica campestris L.) and broccoli (Brassica oleracea L. var. italica) intercrop agroecosystem. In Allelochemicals, Role in Agriculture and Forestry, Waller G.R. ed. ACS Symp. Ser. 330. American Chemical Society, Washington DC, USA, 1987 pp. 262-274. 

As pointed out above, bioassay choice is extremely important since different sensitivities and different responses are observed that are dependent on the bioassay specimen. For example, comparison of four bioassay methods for detection of destruxin B, a host-specific toxin produced by Alternaria brassicae, indicated a lack of rapid electrolyte leakage and insensitivity of host protoplasts. However, leaf and pollen bioassays were sensitive to low toxin levels. Pollen germination was the most rapid, sensitive and quantitative bioassay for the toxin. Significant inhibition of Brassica campestris pollen germination and pollen tube growth occurred only 30 min after incubation with 2.5 pg mL 1, and 7.5 pg mL 1 caused total inhibition.3... 

Newman, M.A., Daniels, M.J., Dow, J.M. Lipopolysaccharide from Xanthomonas campestris induces defence-related gene expression in Brassica campestris. Mol Plant-Microbe Interact 8 (1995) 778-780. 

BHANDARI, N.N., CHITRALEKHA, P., Degradation of protein bodies in germinating seeds of Brassica campestris L. var. sarson Prain., Ann. Bot., 1984,53, 793-801. 

Other Whole Oilseeds. Various oilseeds have been fed whole, or dehulled, when available for feed at competitive prices or in grades substandard for extraction but still wholesome for feeding. Examples include safflower (Carthamus tinctorius), fat content 35%, dmb and oil-type sunflower seed fat content 44%, dmb. Currently, interest is high in feeding whole canola seed (41 6% oil) in Canada and northern European countries. Double-zero strains of Brassica napus (rapeseed, oilseed rape, swede rape, and Argentine rape) and Brassica campestris (turnip rape, oil... 

Hiltunen R, Huhtikangas A, Hovinen S. Breeding of a zero erucic spring turnip-rape cultivar, Brassica campestris L. adapted to Finnish climatic conditions. Acta Pharm Fenn 1979 88 31-34. 

Fig. 5. Cytochrome t. (A) Its location in the thylakoid membrane (B) Amino-acid sequences for turnip Cyt f(Brassica campestris, B.C.), spinach Spinacia oleracea, S.o.) and Nostoc PCC 7906 (7906) (C) Hydropathy plot and (D) Topological model. (B) from Gray (1992) Cytochrome f Structure, function and biosynthesis. Photosynthesis Res 34 361 (C) from Widger, Cramer, Herrmann and Trebst (1985) Topography and function of thylakoid membrane proteins. Trends Biochem Sci 10 126.

Microanalytical techniques, consisting of methaneboronation of the vicinal hydroxyls ( bismethaneboronate or methaneboronate-TMS-ether ) have been developed by Takatsutoet al. for the GC/MS or GC/SIM of brassinosteroids (16). Consequently brassinone (15), 24-ethylbrassinone (12) and 28-norbrassinolide (14) were detected by GC/MS without isolation from Chinese cabbage ( Brassica campestris ), green tea ( Thea sinensis ) and chestnut insect galls ( Distilium racemosum ) (17-19). The presence of brassinolide and castasterone in the tissues of these plants has been also detected. 

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