| observations of the effects of rapistrum rugosum on thyroid function. | | 1984 | 6508671 |
| host plants of the tarnished plant bug (heteroptera: miridae) in central texas. | the tarnished plant bug, lygus lineolaris (palisot de beauvois), has taken on added importance as a pest of cotton in the cotton belt after successful eradication efforts for the boll weevil (anthonomus grandis grandis boheman). because the southern blacklands region of central texas is in advanced stages of boll weevil eradication, blooming weeds and selected row crops were sampled during a 3-yr study to determine lygus species composition and associated temporal host plants. l. lineolaris was ... | 2007 | 17716463 |
| two novel mastreviruses from chickpea (cicer arietinum) in australia. | two novel mastreviruses (genus mastrevirus; family geminiviridae), with proposed names chickpea chlorosis virus (cpcv) and chickpea redleaf virus, are described from chickpea (cicer arietinum) from eastern australia. the viruses have genomes of 2,582 and 2,605 nucleotides, respectively, and share similar features and organisation with typical dicot-infecting mastreviruses. two distinct strains of cpcv were suggested by phylogenetic analysis. additionally, a partial mastrevirus rep sequence from ... | 2010 | 20734091 |
| imi resistance associated to crop-weed hybridization in a natural brassica rapa population: characterization and fate. | wild turnip (brassica rapa) is a common weed and a close relative to oilseed rape (brassica napus). the clearfield® production system is a highly adopted tool which provides an alternative solution for weed management, but its efficiency is threatened by gene transfer from crop to weed relatives. crop-weed hybrids with herbicide resistance were found in the progeny of a b. rapa population gathered from a weedy stand on the borders of an oilseed rape (b. napus) imidazolinone (imi)-resistant crop. ... | 2017 | 28185156 |
| cold tolerance and overwintering of the diamondback moth (lepidoptera: plutellidae) in southeastern australia. | southeastern australia is situated in a temperate zone with generally mild winters. the diamondback moth, plutella xylostella l., can be a serious pest of canola as well as of other brassica crops in this region. however, the ability of p. xylostella to overwinter in southeastern australia, as well as in other temperate regions of the world, remains controversial. laboratory experiments indicated that after 60 d in a temperature regimen alternating between 0 and 5 degrees c, 32% of third- and fo ... | 2009 | 19508760 |
| heritability of floral volatiles and pleiotropic responses to artificial selection in brassica rapa. | the evolution of the vast diversity of floral volatiles is little understood, although they serve fundamental functions, such as pollinator attraction and herbivore deterrence. floral volatiles are often species specific, yet highly variable and sensitive to environmental factors. to date, nothing is known about the heritability of floral volatiles, and whether individual compounds can evolve independently or solely in concert with the whole volatile bouquet. we conducted bi-directional artifici ... | 2016 | 26391626 |
| reduction of epsp synthase in transgenic wild turnip (brassica rapa) weed via suppression of aroa. | epsps is coded with the aroa gene, a key enzyme that catalyzes the penultimate step of shikimate pathway. the current study focuses on the suppression of aroa gene in weedy brassica rapa. for this purpose b. rapa was transformed with double-stranded rna interference construct designed to silence aroa gene. this developed in a significant decline in epsps (about 72 %) in t0 and t1 plants. in order to study the gene flow, the b. rapa control and b. napus plants were pollinated with t0 b. rapa. res ... | 2014 | 25189653 |
| transgene escape and persistence in an agroecosystem: the case of glyphosate-resistant brassica rapa l. in central argentina. | brassica rapa l. is an annual brassicaceae species cultivated for oil and food production, whose wild form is a weed of crops worldwide. in temperate regions of south america and especially in the argentine pampas region, this species is widely distributed. during 2014, wild b. rapa populations that escaped control with glyphosate applications by farmers were found in this area. these plants were characterized by morphology and seed acidic profile, and all the characters agreed with b. rapa desc ... | 2017 | 29243152 |
| multiple mechanisms increase levels of resistance in rapistrum rugosum to als herbicides. | rapistrum rugosum (turnip weed) is a common weed of wheat fields in iran, which is most often controlled by tribenuron-methyl (tm), a sulfonylurea (su) belonging to the acetolactate synthase (als) inhibiting herbicides group. several cases of unexplained control failure of r. rugosum by tm have been seen, especially in golestan province-iran. hence, there is lack of research in evaluation of the level of resistance of the r. rugosum populations to tm, using whole plant dose-response and enzyme a ... | 2016 | 26941749 |
| phytoremediation of lead-contaminated soil by sinapis arvensis and rapistrum rugosum. | nowadays, public concern relating to ecological deleterious effects of heavy metals is on the rise. to evaluate the potential of rapistrum rugosum and sinapis arvensis in lead- contaminate phytoremediate, a pot culture experiment was conducted. the pots were filled by soil treated with different rates of leadoxide (pbo) including 0 (control), 100, 200, 300, 400, and 500 mg pb per 1 kg soil. germinated seeds were sown. surprisingly, with increasing concentration of pb, dry weight of r. rugosum an ... | 2016 | 26552966 |
| cytotoxic flavonoid glycosides from rapistrum rugosum l. | five flavonoid glycosides were isolated from the n-butanol soluble fraction of the ethanolic extract of rapistrum rugosum and their structures were assigned from (1)h- and (13)c-nmr spectra (dept) with 2d nmr as quercetin-3-o-α-l-rhamnopyranoside (1), quercetin-3-o- β-d-xyloside (2), quercetin, 3-o-α-l-arabinopyranoside,7-o-α-l-rhamnopyranoside (3), kaempferol 3-o-α-l-arabinopyranoside, 7-o-α-l-rhamnopyranoside (4) and rutin (5). the srb cytotoxic assay was used to investigate the antitumor acti ... | 2012 | 24250510 |
| seeds of brassicaceae weeds have an inherent or inducible response to the germination stimulant karrikinolide. | karrikinolide (kar(1)) is a smoke-derived chemical that can trigger seeds to germinate. a potential application for kar(1) is for synchronizing the germination of weed seeds, thereby enhancing the efficiency of weed control efforts. yet not all species germinate readily with kar(1), and it is not known whether seemingly non-responsive species can be induced to respond. here a major agronomic weed family, the brassicaceae, is used to test the hypothesis that a stimulatory response to kar(1) may b ... | 2011 | 21821831 |