BACKGROUND Xanthomonas campestris pv. campestris (Xcc) (Pammel) Dowson is a Gram-negative bacterium that causes black rot, the most important disease of vegetable brassica crops worldwide. Intensive molecular investigation of Xcc is gaining momentum and several whole genome sequences are available. TAXONOMY Bacteria; Phylum Proteobacteria; Class Gammaproteobacteria; Order Xanthomonadales; Fam...

The paleohexaploid crop Brassica rapa harbors an enormous reservoir of morphological variation, encompassing leafy vegetables, vegetable and fodder turnips (Brassica rapa, ssp. campestris), and oil crops, with different crops having very different leaf morphologies. In the triplicated B. rapa genome, many genes have multiple paralogs that may be regulated differentially and contribute to phenot...

Transfection of Brassica campestris leaves with cauliflower mosaic virus (CaMV) harboring a mammalian metallothionein (MT) cDNA at the ORFII position lowered the glucosinolate (GS) concentration to approximately one-half the level in leaves infected with wild-type CaMV. This suppression was independent of the plant's sulfate status, suggesting that the pathways for protein (MT) and GS biosynthe...

The promotive effect of AgNO3 and aminoethoxyvinylglycine (AVG) on in vitro shoot regeneration from cotyledons of Brasska campestris ssp. peklnensls in relation to endogenous 1-aminocyclopropane-1-carboxylic acid (ACC) synthase, ACC, and ethylene production was investigated. AgNO3 enhanced ACC synthase activity and ACC accumulation, which reached a maximum after 3 to 7 days of culture. ACC accu...

Meloidogyne chitwoodi races 1 and 2 and M. hapla reproduced on 12 cultivars of Brassica napus and two cultivars of B. campestris. The mean reproductive factors (Rf), Rf = Pf at 55 days / 5,000, for the three nematodes were 8.3, 2.2, and 14.3, respectively. All three nematodes reproduced more efficiently (P < 0.05) on B. campestris than on B. napus. Amending M. chitwoodi-infested soil in plastic...

Effect of several irrigation of sugar industry effluent was studied on vegetative and yield characteristics of L. var. Varuna type 59. Crop showed vigrous enhancement in almost all the vegetative and yield characteristics studied and generally it was seen that the enhancement in vegetative and yield characteristics are directly related to the number of irrigation with sugar industry effluents. ...

Plant proteinase inhibitors (PIs), which play a potent defensive role against predators and pathogens, are natural, defense-related proteins often present in seeds and induced in certain plant tissues by herbivory or wounding. This review describes the main classes of proteinase inhibitors, the distribution and localization, general properties, the main functions, and commercial applications of...