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https://www.readbyqxmd.com/read/27930927/arsenic-affects-the-production-of-glucosinolate-thiol-and-phytochemical-compounds-a-comparison-of-two-brassica-cultivars
#1
Chandana Pandey, Rehna Augustine, Medha Panthri, Ismat Zia, Naveen C Bisht, Meetu Gupta
Arsenic (As), a non-essential metalloid, severely affects the normal functioning of plants, animals and humans. Plants play a crucial role in metabolic, physiological and numerous detoxification mechanisms to cope up with As induced stress. This study aimed to examine the differential response in two Brassica juncea cultivars, Varuna and Pusa Jagannath (PJn) exposed to different doses of As (50, 150, 300 μM) for 48 h duration. Change in morphological traits, concentration of individual as well as total GSL, sulfur related thiol proteins, sulfur content, and phytochemicals were analyzed in both cultivars...
November 30, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27927070/evaluation-of-antioxidant-and-hepatoprotective-effects-of-white-cabbage-essential-oil
#2
Javier Morales-López, Mónica Centeno-Álvarez, Antonio Nieto-Camacho, Mercedes G López, Elizabeth Pérez-Hernández, Nury Pérez-Hernández, Eduardo Fernández-Martínez
CONTEXT: There have been no reports of the extraction of essential oil (EO) from white cabbage [Brassica oleracea L. var. capitata (L.) Alef. f. alba DC. (Brassicaceae)] (Bocfal) or its chemical composition, antioxidant activity, or hepatoprotective effects. OBJECTIVE: To extract Bocfal EO, to identify and quantify its chemical components, to assess their antioxidant capacity, and to evaluate the hepatoprotective properties of Bocfal EO. MATERIALS AND METHODS: Bocfal EO was obtained using hydrodistillation (200 mm Hg/58 °C)...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27922076/identification-of-bnayucca6-as-a-candidate-gene-for-branch-angle-in-brassica-napus-by-qtl-seq
#3
Hui Wang, Hongtao Cheng, Wenxiang Wang, Jia Liu, Mengyu Hao, Desheng Mei, Rijin Zhou, Li Fu, Qiong Hu
Oilseed rape (Brassica napus L.) is one of the most important oil crops in China as well as worldwide. Branch angle as a plant architecture component trait plays an important role for high density planting and yield performance. In this study, bulked segregant analysis (BSA) combined with next generation sequencing technology was used to fine map QTL for branch angle. A major QTL, designated as branch angle 1 (ba1) was identified on A06 and further validated by Indel marker-based classical QTL mapping in an F2 population...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917903/global-dna-methylation-variations-after-short-term-heat-shock-treatment-in-cultured-microspores-of-brassica-napus-cv-topas
#4
Jun Li, Qian Huang, Mengxiang Sun, Tianyao Zhang, Hao Li, Biyun Chen, Kun Xu, Guizhen Gao, Feng Li, Guixin Yan, Jiangwei Qiao, Yongping Cai, Xiaoming Wu
Heat stress can induce the cultured microspores into embryogenesis. In this study, whole genome bisulphite sequencing was employed to study global DNA methylation variations after short-term heat shock (STHS) treatments in cultured microspores of Brassica napus cv. Topas. Our results indicated that treatment on cultured Topas microspores at 32 °C for 6 h triggered DNA hypomethylation, particularly in the CG and CHG contexts. And the total number of T32 (Topas 32 °C for 6 h) vs. T0 (Topas 0 h) differentially methylated region-related genes (DRGs) was approximately two-fold higher than that of T18 (Topas 18 °C for 6 h) vs...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917185/fire-and-brimstone-molecular-interactions-between-sulfur-and-glucosinolate-biosynthesis-in-model-and-crop-brassicaceae
#5
REVIEW
Priyakshee Borpatragohain, Terry J Rose, Graham J King
Glucosinolates (GSLs) represent one of the most widely studied classes of plant secondary metabolite, and have a wide range of biological activities. Their unique properties also affect livestock and human health, and have been harnessed for food and other end-uses. Since GSLs are sulfur (S)-rich there are many lines of evidence suggesting that plant S status plays a key role in determining plant GSL content. However, there is still a need to establish a detailed knowledge of the distribution and remobilization of S and GSLs throughout the development of Brassica crops, and to represent this in terms of primary and secondary sources and sinks...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27913097/effect-of-24-epibrassinolide-on-brassica-napus-alternative-respiratory-pathway-guard-cells-movements-and-phospholipid-signaling-under-salt-stress
#6
Michael Derevyanchuk, Sergii Kretynin, Oksana Iakovenko, Raisa Litvinovskaya, Vladimir Zhabinskii, Jan Martinec, Yaroslav Blume, Vladimir Khripach, Volodymyr Kravets
Using Brassica napus roots we observed statistically significant increase in alternative respiratory pathway in response to exogenous 24-epibrassinolide (EBL) under optimal conditions and salinity. Also we observed activation of phospholipid signaling under the same conditions in response to EBL by measuring levels of lipid second messengers - diacylglycerol (DAG) and phosphatidic acid (PA). We found that brassinosteroids cause closure of stomata in isolated leaf disks while inhibitors of alternative oxidase cancelled these effects...
November 29, 2016: Steroids
https://www.readbyqxmd.com/read/27909970/over-expression-of-mir158-causes-pollen-abortion-in-brassica-campestris-ssp-chinensis
#7
Zhiming Ma, Jianxia Jiang, Ziwei Hu, Tianqi Lyu, Yang Yang, Jingjing Jiang, Jiashu Cao
We identified and cloned the two precursors of miR158 and its target gene in Brassica campestris ssp. chinensis, which both had high relative expression in the inflorescences. Further study revealed that over-expression of miR158 caused reduced pollen varbility, which was caused by the degradation of pollen contents from the binucleate microspore stage. These results first suggest the role of miR158 in pollen development of Brassica campestris ssp. chinensis. MicroRNAs (miRNAs) play crucial roles in many important growth and development processes both in plants and animals by regulating the expression of their target genes via mRNA cleavage or translational repression...
December 1, 2016: Plant Molecular Biology
https://www.readbyqxmd.com/read/27909440/introgressing-subgenome-components-from-brassica-rapa-and-b-carinata-to-b-juncea-for-broadening-its-genetic-base-and-exploring-intersubgenomic-heterosis
#8
Zili Wei, Meng Wang, Shihao Chang, Chao Wu, Peifa Liu, Jinling Meng, Jun Zou
Brassica juncea (A(j)A(j)B(j)B(j)), is an allotetraploid that arose from two diploid species, B. rapa (A(r)A(r)) and B. nigra (B(n)B(n)). It is an old oilseed crop with unique favorable traits, but the genetic improvement on this species is limited. We developed an approach to broaden its genetic base within several generations by intensive selection. The A(r) subgenome from the Asian oil crop B. rapa (A(r)A(r)) and the B(c) subgenome from the African oil crop B. carinata (B(c)B(c)C(c)C(c)) were combined in a synthesized allohexaploid (A(r)A(r)B(c)B(c)C(c)C(c)), which was crossed with traditional B...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27901190/feeding-preference-of-plutella-xylostella-for-leaves-treated-with-plant-extracts
#9
Irys F S Couto, Mateus L Fuchs, Fabrício F Pereira, Munir Mauad, Silvana P Q Scalon, Daiane M Dresch, Rosilda M Mussury
Plutella xylostella L. is one of the main agents to cause damages to plants of Brassica genus, provoking negative impacts in cultures. The use of botanical extracts in plants protection has been related in literature, however, their use in the species analyzed in this study is not yet reported. We assessed the effect of aqueous and methanolic extracts of the species: Schinus terebinthifolius Raddi (Pink Pepper), Annona coriacea Mart. (Araticum), Duguetia furfuracea (A. St.-Hil.) Benth. & Hook. (Pindaúva do campo) and Trichilia silvatica C...
2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27900399/quantitative-trait-loci-mapping-of-heat-tolerance-in-broccoli-brassica-oleracea-var-italica-using-genotyping-by-sequencing
#10
Sandra E Branham, Zachary J Stansell, David M Couillard, Mark W Farnham
Five quantitative trait loci and one epistatic interaction were associated with heat tolerance in a doubled haploid population of broccoli evaluated in three summer field trials. Predicted rising global temperatures due to climate change have generated a demand for crops that are resistant to yield and quality losses from heat stress. Broccoli (Brassica oleracea var. italica) is a cool weather crop with high temperatures during production decreasing both head quality and yield. Breeding for heat tolerance in broccoli has potential to both expand viable production areas and extend the growing season but breeding efficiency is constrained by limited genetic information...
November 29, 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/27896366/allelism-analysis-of-brrfp-locus-in-different-restorer-lines-and-map-based-cloning-of-a-fertility-restorer-gene-brrfp1-for-pol-cms-in-chinese-cabbage-brassica-rapa-l
#11
Huamin Zhang, Junqing Wu, Zihui Dai, Meiling Qin, Lingyu Hao, Yanjing Ren, Qingfei Li, Lugang Zhang
In Chinese cabbage, there are two Rf loci for pol CMS and one of them was mapped to a 12.6-kb region containing a potential candidate gene encoding PPR protein. In Chinese cabbage (Brassica rapa), polima cytoplasmic male sterility (pol CMS) is an important CMS type and is widely used for hybrid breeding. By extensive test crossing in Chinese cabbage, four restorer lines (92s105, 01s325, 00s109, and 88s148) for pol CMS were screened. By analyzing the allelism of the four restorer lines, it was found that 92s105, 01s325, and 00s109 had the same "restorers of fertility" (Rf) locus (designated as BrRfp1), but 88s148 had a different Rf locus (designated as BrRfp2)...
November 28, 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/27889935/the-effects-of-becoming-taller-direct-and-pleiotropic-effects-of-artificial-selection-on-plant-height-in-brassica-rapa
#12
Pengjuan Zu, Florian P Schiestl
Plant height is an important trait for plant reproductive success. Plant height is often under pollinator-mediated selection, and has been shown to be correlated with various other traits. However, few studies have examined the evolutionary trajectory of plant height under selection and the pleiotropic effects of plant height evolution. We conducted a bi-directional artificial selection experiment on plant height with fast cycling Brassica rapa plants to estimate its heritability and genetic correlations and to reveal evolutionary responses to artificial selection on height and various correlated traits...
November 27, 2016: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/27886559/ectopic-expression-of-ga-2-oxidase-6-from-rapeseed-brassica-napus-l-causes-dwarfism-late-flowering-and-enhanced-chlorophyll-accumulation-in-arabidopsis-thaliana
#13
Jindong Yan, Xiaoying Liao, Reqing He, Ming Zhong, Panpan Feng, Xinmei Li, Dongying Tang, Xuanming Liu, Xiaoying Zhao
Gibberellins (GAs) are endogenous hormones that play an important role in higher plant growth and development. GA2-oxidase (GA2ox) promotes catabolism and inactivation of bioactive GAs or their precursors. In this study, we identified the GA2-oxidase gene, BnGA2ox6, and found it to be highly expressed in the silique and flower. Overexpression of BnGA2ox6 in Arabidopsis resulted in GA-deficiency symptoms, including inhibited elongation of the hypocotyl and stem, delayed seed germination, and late flowering. BnGA2ox6 overexpression reduced silique growth, but had no effect on seed development...
November 15, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27885421/role-of-vernalization-mediated-demethylation-in-the-floral-transition-of-brassica-rapa
#14
Weike Duan, Huijun Zhang, Bei Zhang, Xiaoting Wu, Shuaixu Shao, Ying Li, Xilin Hou, Tongkun Liu
Vernalization-mediated demethylation of BrCKA2 (casein kinase II α-subunit) and BrCKB4 (casein kinase II β-subunit) shorten the period of the clock gene BrCCA1 (circadian clock associated 1) in Brassica rapa. Photoperiod and vernalization are two environmental cues involved in the regulation of floral transition, but the ways in which they interact remain unclear. DNA methylation is one of the main mechanisms involved in controlling the functional state of chromatin and gene expression in response to environmental signals...
November 24, 2016: Planta
https://www.readbyqxmd.com/read/27883018/cytotoxic-and-genotoxic-potential-of-food-borne-nitriles-in-a-liver-in-vitro-model
#15
Franziska Kupke, Corinna Herz, Franziska S Hanschen, Stefanie Platz, Grace A Odongo, Simone Helmig, María M Bartolomé Rodríguez, Monika Schreiner, Sascha Rohn, Evelyn Lamy
Isothiocyanates are the most intensively studied breakdown products of glucosinolates from Brassica plants and well recognized for their pleiotropic effects against cancer but also for their genotoxic potential. However, knowledge about the bioactivity of glucosinolate-borne nitriles in foods is very poor. As determined by GC-MS, broccoli glucosinolates mainly degrade to nitriles as breakdown products. The cytotoxicity of nitriles in human HepG2 cells and primary murine hepatocytes was marginal as compared to isothiocyanates...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27882216/intake-of-kale-suppresses-postprandial-increases-in-plasma-glucose-a-randomized-double-blind-placebo-controlled-crossover-study
#16
Sumio Kondo, Asahi Suzuki, Mihoko Kurokawa, Keiji Hasumi
Kale (Brassica oleracea var. acephala), a vegetable in the family Brassicaceae, has beneficial effects on health, including hypoglycemic effects. In our previous study with a limited number of subjects, intake of kale-containing food at a dose of 14 g decreased postprandial plasma glucose levels. In the present study, the effective dose of kale-containing food was investigated in a randomized, double-blind, placebo-controlled, crossover trial. The trial was conducted on 42 Japanese subjects aged 21-64 years with fasting plasma glucose levels of ≤125 mg/dl and 30-min postprandial plasma glucose levels of 140-187 mg/dl...
November 2016: Biomedical Reports
https://www.readbyqxmd.com/read/27881992/molecular-mapping-and-qtl-for-expression-profiles-of-flavonoid-genes-in-brassica-napus
#17
Cunmin Qu, Huiyan Zhao, Fuyou Fu, Kai Zhang, Jianglian Yuan, Liezhao Liu, Rui Wang, Xinfu Xu, Kun Lu, Jia-Na Li
Flavonoids are secondary metabolites that are extensively distributed in the plant kingdom and contribute to seed coat color formation in rapeseed. To decipher the genetic networks underlying flavonoid biosynthesis in rapeseed, we constructed a high-density genetic linkage map with 1089 polymorphic loci (including 464 SSR loci, 97 RAPD loci, 451 SRAP loci, and 75 IBP loci) using recombinant inbred lines (RILs). The map consists of 19 linkage groups and covers 2775 cM of the B. napus genome with an average distance of 2...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27881750/experimental-evidence-that-honeybees-depress-wild-insect-densities-in-a-flowering-crop
#18
Sandra A M Lindström, Lina Herbertsson, Maj Rundlöf, Riccardo Bommarco, Henrik G Smith
While addition of managed honeybees (Apis mellifera) improves pollination of many entomophilous crops, it is unknown if it simultaneously suppresses the densities of wild insects through competition. To investigate this, we added 624 honeybee hives to 23 fields of oilseed rape (Brassica napus L.) over 2 years and made sure that the areas around 21 other fields were free from honeybee hives. We demonstrate that honeybee addition depresses the densities of wild insects (bumblebees, solitary bees, hoverflies, marchflies, other flies, and other flying and flower-visiting insects) even in a massive flower resource such as oilseed rape...
November 30, 2016: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/27880994/isothiocyanates-in-brassica-potential-anti-cancer-agents
#19
Sharma Anubhuti, Sharma Ashok, Yadav Prashant, Singh Dhiraj
Isothiocyanates are naturally occurring small molecules that are formed from glucosinolate precursors of cruciferous vegetables. Many isothiocyanates, both natural and synthetic, display anti-carcinogenic activity because they reduce activation of carcinogens and increase their detoxification. This minireview summarizes the current knowledge on isothiocyanates and focuses on their role as potential anti-cancer agents.
January 9, 2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27880793/seed-quality-traits-can-be-predicted-with-high-accuracy-in-brassica-napus-using-genomic-data
#20
Jun Zou, Yusheng Zhao, Peifa Liu, Lei Shi, Xiaohua Wang, Meng Wang, Jinling Meng, Jochen Christoph Reif
Improving seed oil yield and quality are central targets in rapeseed (Brassica napus) breeding. The primary goal of our study was to examine and compare the potential and the limits of marker-assisted selection and genome-wide prediction of six important seed quality traits of B. napus. Our study is based on a bi-parental population comprising 202 doubled haploid lines and a diverse validation set including 117 B. napus inbred lines derived from interspecific crosses between B. rapa and B. carinata. We used phenotypic data for seed oil, protein, erucic acid, linolenic acid, stearic acid, and glucosinolate content...
2016: PloS One
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