keyword
MENU ▼
Read by QxMD icon Read
search

brassinosteroid

keyword
https://www.readbyqxmd.com/read/28811017/improved-methodology-for-analysis-of-multiple-phytohormones-using-sequential-magnetic-solid-phase-extraction-coupled-with-liquid-chromatography-tandem-mass-spectrometry
#1
Xiao-Tong Luo, Bao-Dong Cai, Xi Chen, Yu-Qi Feng
Phytohormones are special small molecules that play important role in plant growth and development at trace levels. Quantification of multiple phytohormones will be great helpful for researches about cross-talks that plant hormones regulate the responses of plants against both biotic and abiotic stresses by means of synergistic or antagonistic interactions. In the current study, we developed a method for profiling of phytohormones in one small sample, including indole-3-acetic acid, abscisic acid, jasmonic acid, gibberellins, cytokinins and brassinosteroids...
August 29, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28808238/rna-seq-using-bulked-recombinant-inbred-line-populations-uncovers-the-importance-of-brassinosteroid-for-seed-longevity-after-priming-treatments
#2
Naoto Sano, June-Sik Kim, Yoshihiko Onda, Takahito Nomura, Keiichi Mochida, Masanori Okamoto, Mitsunori Seo
Seed priming is a commercially used technique for improving seed performance including germination. However, the treatment sometimes reduces seed longevity as a side effect, limiting the storable period or longevity of the seeds. To overcome this problem, molecular mechanisms involved in the loss of seed longevity during priming were analyzed using natural variations of Arabidopsis thaliana. We found that the Est-1 accession retained longevity for longer after priming compared to the reference accession Col-0...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28797222/genetic-architecture-and-temporal-patterns-of-biomass-accumulation-in-spring-barley-revealed-by-image-analysis
#3
Kerstin Neumann, Yusheng Zhao, Jianting Chu, Jens Keilwagen, Jochen C Reif, Benjamin Kilian, Andreas Graner
BACKGROUND: Genetic mapping of phenotypic traits generally focuses on a single time point, but biomass accumulates continuously during plant development. Resolution of the temporal dynamics that affect biomass recently became feasible using non-destructive imaging. RESULTS: With the aim to identify key genetic factors for vegetative biomass formation from the seedling stage to flowering, we explored growth over time in a diverse collection of two-rowed spring barley accessions...
August 10, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28780445/castasterone-and-citric-acid-treatment-restores-photosynthetic-attributes-in-brassica-juncea-l-under-cd-ii-toxicity
#4
Ravdeep Kaur, Poonam Yadav, Anket Sharma, Ashwani Kumar Thukral, Vinod Kumar, Sukhmeen Kaur Kohli, Renu Bhardwaj
Cadmium(II) toxicity is a serious environmental issue warranting effective measures for its mitigation. In the present study, ameliorative effects of a bioactive brassinosteroid, castasterone (CS) and low molecular weight organic acid, citric acid (CA) against the Cd(II) toxicity to Brassica juncea L. were evaluated. Seeds of B. juncea treated with CS (0, 0.01, 1 and 100nM) were sown in cadmium spiked soils (0 and 0.6mmolkg(-1) soil). CA (0.6mmolkg(-1)soil) was added to soil one week after sowing seeds. Plants were harvested 30 days after sowing...
August 3, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28776692/brassinosteroid-mediated-apoplastic-h2-o2-glutaredoxin-12-14-cascade-regulates-antioxidant-capacity-in-response-to-chilling-in-tomato
#5
Xiao-Jian Xia, Ping-Ping Fang, Xie Guo, Xiang-Jie Qian, Jie Zhou, Kai Shi, Yan-Hong Zhou, Jing-Quan Yu
Brassinosteroids (BRs) regulate plant development and stress response. Although much has been learned about their roles in plant development, the mechanisms by which BRs regulate plant stress tolerance remain unclear. Chilling is a major stress that adversely affects plant growth. Here, we report that BR positively regulates chilling tolerance in tomato. BR partial deficiency aggravated chilling-induced oxidized protein accumulation, membrane lipid peroxidation and decrease of maximum quantum efficiency of photosystem II (Fv/Fm)...
August 4, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28769958/oryza-sativa-brassinosteroid-upregulated1-like1-induces-the-expression-of-a-gene-encoding-a-small-leucine-rich-repeat-protein-to-positively-regulate-lamina-inclination-and-grain-size-in-rice
#6
Seonghoe Jang, Hsing-Yi Li
Oryza sativa BRASSINOSTEROID UPREGULATED1 LIKE1 (OsBUL1) positively affects lamina inclination and grain size. OsBUL1 knock-out (osbul1) plants as well as transgenic rice with reduced level of OsBUL1 expression produce erect leaves and small grains. Here, we identified a putative downstream gene of OsBUL1, OsBUL1 DOWNSTREAM GENE1 (OsBDG1) encoding a small protein with short leucine-rich-repeats by cDNA microarray analyses in the lamina joint and panicles of wild-type and osbul1 plants. Transgenic rice plants with increased OsBDG1 expression exhibit increased leaf angle and grain size, which is similar to an OsBDG1 activation tagging line whereas double stranded RNA interference (dsRNAi) lines for OsBDG1 knock-down generate erect leaves with smaller grains...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28766014/high-temperature-promotion-of-callus-formation-requires-the-bin2-arf-lbd-axis-in-arabidopsis
#7
Kyounghee Lee, Pil Joon Seo
The auxin-brassinosteroid interaction involving the BIN2-ARF-LBD axis plays a key role in temperature-dependent callus formation in Arabidopsis. An extensive web of multiple hormone signaling pathways underlies callus formation. Here, we report that a brassinosteroid (BR) signaling component, BR-INSENSITIVE 2 (BIN2), positively regulates callus formation. The BIN2 kinase promotes transcriptional activities of AUXIN RESPONSE FACTOR 7 (ARF7) and ARF19 and subsequently activates expression of LATERAL ORGAN BOUNDARIES-DOMAIN 16 (LBD16) and LBD29 during callus formation...
August 1, 2017: Planta
https://www.readbyqxmd.com/read/28751691/a-deletion-affecting-an-lrr-rlk-gene-co-segregates-with-the-fruit-flat-shape-trait-in-peach
#8
Elena López-Girona, Yu Zhang, Iban Eduardo, José Ramón Hernández Mora, Konstantinos G Alexiou, Pere Arús, María José Aranzana
In peach, the flat phenotype is caused by a partially dominant allele in heterozygosis (Ss), fruits from homozygous trees (SS) abort a few weeks after fruit setting. Previous research has identified a SSR marker (UDP98-412) highly associated with the trait, found suitable for marker assisted selection (MAS). Here we report a ∼10 Kb deletion affecting the gene PRUPE.6G281100, 400 Kb upstream of UDP98-412, co-segregating with the trait. This gene is a leucine-rich repeat receptor-like kinase (LRR-RLK) orthologous to the Brassinosteroid insensitive 1-associated receptor kinase 1 (BAK1) group...
July 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28751549/cross-talk-of-brassinosteroid-signaling-in-controlling-growth-and-stress-responses
#9
REVIEW
Trevor Nolan, Jiani Chen, Yanhai Yin
Plants are faced with a barrage of stresses in their environment and must constantly balance their growth and survival. As such, plants have evolved complex control systems that perceive and respond to external and internal stimuli in order to optimize these responses, many of which are mediated by signaling molecules such as phytohormones. One such class of molecules called Brassinosteroids (BRs) are an important group of plant steroid hormones involved in numerous aspects of plant life including growth, development and response to various stresses...
July 27, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28751198/brassinolide-like-activity-of-castasterone-analogs-with-varied-side-chains-against-rice-lamina-inclination
#10
Bunta Watanabe, Shuji Yamamoto, Taiyo Yokoi, Airi Sugiura, Shinri Horoiwa, Takanori Aoki, Hisashi Miyagawa, Yoshiaki Nakagawa
Brassinolide (BL) and castasterone (CS) are the representative members of brassinosteroid class of plant steroid hormone having plant growth promoting activity. In this study, eleven CS analogs bearing a variety of side chains were synthesized to determine the effect of the side chain structures on the BL-like activity. The plant hormonal activity was evaluated in a dwarf rice lamina inclination assay, and the potency was determined as the reciprocal logarithm of the 50% effective dose (ED50) from each dose-response curve...
June 29, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28732854/self-assembled-hyaluronic-acid-nanoparticles-for-controlled-release-of-agrochemicals-and-diosgenin
#11
Javier Pérez Quiñones, Oliver Brüggemann, Carlos Peniche Covas, Dmitri A Ossipov
Commercial sodium hyaluronate (HA) and synthetic hydrazide-modified HA were functionalized with diosgenin and two agrochemicals (brassinosteroids DI31 and S7) with degree of substitution ranging from 5.6 to 13.1%. The HA-steroid conjugates were studied with FTIR, (1)H NMR and differential scanning calorimetry. Dynamic light scattering revealed self-assembly of the HA-steroid conjugates into stable negatively charged nanoparticles of around 159nm-441nm in water, which after drying appeared as 140nm-370nm spherically shaped nanoparticles according to transmission electron microscopy...
October 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28720789/evolutionarily-conserved-bil4-suppresses-the-degradation-of-brassinosteroid-receptor-bri1-and-regulates-cell-elongation
#12
Ayumi Yamagami, Chieko Saito, Miki Nakazawa, Shozo Fujioka, Tomohiro Uemura, Minami Matsui, Masaaki Sakuta, Kazuo Shinozaki, Hiroyuki Osada, Akihiko Nakano, Tadao Asami, Takeshi Nakano
Brassinosteroids (BRs), plant steroid hormones, play important roles in plant cell elongation and differentiation. To investigate the mechanisms of BR signaling, we previously used the BR biosynthesis inhibitor Brz as a chemical biology tool and identified the Brz-insensitive-long hypocotyl4 mutant (bil4). Although the BIL4 gene encodes a seven-transmembrane-domain protein that is evolutionarily conserved in plants and animals, the molecular function of BIL4 in BR signaling has not been elucidated. Here, we demonstrate that BIL4 is expressed in early elongating cells and regulates cell elongation in Arabidopsis...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28718794/brs1-function-in-facilitating-lateral-root-emergence-in-arabidopsis
#13
Qian Deng, Xue Wang, Dongzhi Zhang, Xiaoming Wang, Cuizhu Feng, Shengbao Xu
The BRS1 (BRI1 Suppressor 1) gene encodes a serine carboxypeptidase that plays a critical role in the brassinosteroid signaling pathway. However, its specific biological function remains unclear. In this study, the developmental role of BRS1 was investigated in Arabidopsis thaliana. We found that overexpressing BRS1 resulted in significantly more lateral roots in different Arabidopsis ecotypes (WS2 and Col-0) and in brassinosteroid mutants (bri1-5 and det2-28). Further research showed that BRS1 facilitates the process whereby lateral root primordia break through the endodermis, cortex, and epidermis...
July 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28701886/overexpression-of-ginseng-ugt72al1-causes-organ-fusion-in-the-axillary-leaf-branch-of-arabidopsis
#14
Ngoc Quy Nguyen, Ok Ran Lee
BACKGROUND: Glycosylation of natural compounds increases the diversity of secondary metabolites. Glycosylation steps are implicated not only in plant growth and development, but also in plant defense responses. Although the activities of uridine-dependent glycosyltransferases (UGTs) have long been recognized, and genes encoding them in several higher plants have been identified, the specific functions of UGTs in planta remain largely unknown. METHODS: Spatial and temporal patterns of gene expression were analyzed by quantitative reverse transcription (qRT)-polymerase chain reaction (PCR) and GUS histochemical assay...
July 2017: Journal of Ginseng Research
https://www.readbyqxmd.com/read/28695957/interactions-among-gibberellins-brassinosteroids-and-genes-regulate-stomatal-development-in-the-arabidopsis-hypocotyl
#15
Diego González, Sonia Fuentes, Laura Serna
Stomata are pores on the plant surface that enable gas exchange with the atmosphere. In Arabidopsis thaliana, brassinosteroids, which function upstream of the TTG/bHLHs/MYBs/GL2 transcriptional network, positively regulate stomatal formation in the hypocotyl. Gibberellins also promote stomatal development in the embryonic stem. Here, we investigated the hypothetical interactions between the gibberellin and brassinosteroid signaling pathways during stomatal formation. By combining genetics and gene expression studies, we found that gibberellins promote stomatal development, functioning upstream of both brassinosteroids and the TTG/bHLHs/MYBs/GL2 network...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28680425/osbsk1-2-an-orthologous-of-atbsk1-is-involved-in-rice-immunity
#16
Jing Wang, Hui Shi, Lian Zhou, Chunfang Peng, Dingyou Liu, Xiaogang Zhou, Wenguan Wu, Junjie Yin, Hai Qin, Weiwei Ma, Min He, Weitao Li, Jichun Wang, Shigui Li, Xuewei Chen
The brassinosteroid-SIGNALING KINASE (BSK) belongs to the receptor-like cytoplasmic kinase XII subgroup. BSK1 regulates development and immunity in Arabidopsis. However, the function of rice (Oryza sativa) BSK1 is largely unknown. Here, we report that the expression level of OsBSK1-2 is induced after a chitin or fagellin22 (flg22) treatment. Silencing OsBSK1-2 in rice results in compromised responses to chitin- or flg22-triggered immunity and resistance to Magnaporthe oryzae, but does not alter the plant's architecture nor reduce plant responses to brassinosteroid signaling...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28676808/gibberellins-promote-brassinosteroids-action-and-both-increase-heterosis-for-plant-height-in-maize-zea-mays-l
#17
Songlin Hu, Cuiling Wang, Darlene L Sanchez, Alexander E Lipka, Peng Liu, Yanhai Yin, Michael Blanco, Thomas Lübberstedt
Brassinosteroids (BRs) and Gibberellins (GAs) are two classes of plant hormones affecting plant height (PHT). Thus, manipulation of BR and GA levels or signaling enables optimization of crop grain and biomass yields. We established backcross (BC) families, selected for increased PHT, in two elite maize inbred backgrounds. Various exotic accessions used in the germplasm enhancement in maize project served as donors. BC1-derived doubled haploid lines in the same two elite maize inbred backgrounds established without selection for plant height were included for comparison...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28674542/physiological-mechanism-of-enhancing-salt-stress-tolerance-of-perennial-ryegrass-by-24-epibrassinolide
#18
Wenli Wu, Qiang Zhang, Erik H Ervin, Zhiping Yang, Xunzhong Zhang
Brassinosteroids (BR) regulate plant tolerance to salt stress but the mechanisms underlying are not fully understood. This study was to investigate physiological mechanisms of 24-epibrassinolide (EBR)'s impact on salt stress tolerance in perennial ryegrass (Lolium perenne L.) The grass seedlings were treated with EBR at 0, 10, and 100 nM, and subjected to salt stress (250 mM NaCl). The grass irrigated with regular water without EBR served as the control. Salt stress increased leaf electrolyte leakage (EL), malondialdehyde (MDA), and reduced photosynthetic rate (Pn)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28652362/phosphosite-charge-rather-than-shootward-localization-determines-octopus-activity-in-root-protophloem
#19
Alice S Breda, Ora Hazak, Christian S Hardtke
Polar cellular localization of proteins is often associated with their function and activity. In plants, relatively few polar-localized factors have been described. Among them, the plasma membrane-associated Arabidopsis proteins OCTOPUS (OPS) and BREVIS RADIX (BRX) display shootward and rootward polar localization, respectively, in developing root protophloem cells. Both ops and brx null mutants exhibit defects in protophloem differentiation. Here we show that OPS and BRX act genetically in parallel in this process, although OPS dosage increase mends defects caused by brx loss-of-function...
July 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28618117/itraq-based-proteomics-of-sunflower-cultivars-differing-in-resistance-to-parasitic-weed-orobanche-cumana
#20
Chong Yang, Ling Xu, Na Zhang, Faisal Islam, Wenjian Song, Luyang Hu, Dan Liu, Xiaonan Xie, Weijun Zhou
Orobanche cumana is an obligate root parasite causing severe damage to many economically important crops, including sunflowers worldwide. For efficient control measures, it is necessary to understand the resistant mechanism during interaction at molecular level. The present study emphasizes on comparative proteomics to investigate the mechanistic basis of compatible and incompatible interaction of O. cumana with resistant (JY207) and susceptible (TK0409) sunflowers. More than 3500 proteins were identified from two cultivars by iTRAQ analysis...
June 15, 2017: Proteomics
keyword
keyword
82901
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"