keyword
MENU ▼
Read by QxMD icon Read
search

gibberellin

keyword
https://www.readbyqxmd.com/read/28729698/dynamic-transcriptomic-analysis-of-the-early-response-of-female-flowers-of-populus-alba%C3%A2-%C3%A3-%C3%A2-p-glandulosa-to-pollination
#1
Pian Rao, Zhong Chen, Xiaoyu Yang, Kai Gao, Xiong Yang, Tianyun Zhao, Siyan Li, Bo Wu, Xinmin An
Pollination is an important event in plant sexual reproduction, and post-pollination response is an essential process for reproduction. Populus alba × P. glandulosa is used widely in scientific research, especially in cross breeding as parents. Adult female P. alba × P. glandulosa flowers are highly compatible with pollen from male P. tomentosa, but the early post-pollination response of flowers at the molecular levels is unclear. In this study, RNA-seq was employed to comprehensively understand the response of female P...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729527/comparative-transcriptome-analysis-of-the-floral-transition-in-rosa-chinensis-old-blush-and-r-odorata-var-gigantea
#2
Xuelian Guo, Chao Yu, Le Luo, Huihua Wan, Yushu Li, Jia Wang, Tangren Cheng, Huitang Pan, Qixiang Zhang
The floral transition is a crucial developmental event, but little is known about the underlying regulatory networks in seasonally and continuously flowering roses. In this study, we compared the genetic basis of flowering in two rose species, Rosa chinensis 'Old Blush', which flowers continuously, and R. odorata var. gigantea, which blooms in early spring. Gene ontology (GO) terms related to methylation, light reaction, and starch metabolism were enriched in R. odorata var. gigantea and terms associated with sugar metabolism were enriched in R...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28726715/overexpression-of-the-osimp-gene-increases-the-accumulation-of-inositol-and-confers-enhanced-cold-tolerance-in-tobacco-through-modulation-of-the-antioxidant-enzymes-activities
#3
Rong-Xiang Zhang, Li-Jun Qin, De-Gang Zhao
Inositol is a cyclic polyol that is involved in various physiological processes, including signal transduction and stress adaptation in plants. l-myo-inositol monophosphatase (IMPase) is one of the metal-dependent phosphatase family members and catalyzes the last reaction step of biosynthesis of inositol. Although increased IMPase activity induced by abiotic stress has been reported in chickpea plants, the role and regulation of the IMP gene in rice (Oryza sativa L.) remains poorly understood. In the present work, we obtained a full-length cDNA sequence coding IMPase in the cold tolerant rice landraces in Gaogonggui, which is named as OsIMP...
July 20, 2017: Genes
https://www.readbyqxmd.com/read/28721585/cyp701a26-is-characterized-as-an-ent-kaurene-oxidase-with-putative-involvement-in-maize-gibberellin-biosynthesis
#4
Hongjie Mao, Qinqin Shen, Qiang Wang
OBJECTIVES: To characterize the ent-kaurene oxidase (KO) involved in maize (Zea mays) gibberellin (GA) biosynthesis. RESULTS: Two putative KO genes were identified in maize based on the homologous alignment. Biochemical characterization indicated that one of them encoded a cytochrome P450 monooxygenase (P450) CYP701A26, which reacted with ent-kaurene to form ent-kaurenoic acid, the key intermediate of GA biosynthesis. CYP701A26 showed constitutive expression in active growing tissues and no inducible expression, which led to putative designation of CYP701A26 as the ZmKO...
July 18, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28716493/chemical-screening-and-development-of-novel-gibberellin-mimics
#5
Kai Jiang, Hiroaki Shimotakahara, Ming Luo, Masato Otani, Hidemitsu Nakamura, Said Salama Moselhy, Khalid Omer Abualnaja, Abdulrahman Labeed Al-Malki, Taha Abduallah Kumosani, Nobutaka Kitahata, Takeshi Nakano, Masatoshi Nakajima, Tadao Asami
Gibberellin (GA) plays versatile roles in the regulation of plant growth and development and therefore is widely used as a regulator in agriculture. We performed a chemical library screening and identified a chemical, named 67D, as a stimulator of seed germination that was suppressed by paclobutrazol (PAC), a GA biosynthesis inhibitor. In vitro binding assays indicated that 67D binds to the GID1 receptor. Further studies on the structure-activity relationship identified a chemical, named chemical 6, that strongly promoted seed germination suppressed by PAC...
July 4, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28715118/microrna159-targeted-slgamyb-transcription-factors-are-required-for-fruit-set-in-tomato
#6
Eder Marques da Silva, Geraldo Felipe Ferreira E Silva, Débora Brussolo Bidoia, Mariana da Silva Azevedo, Frederico Almeida de Jesus, Lilian Ellen Pino, Lázaro Eustáquio Pereira Peres, Esther Carrera, Isabel López-Díaz, Fabio Tebaldi Silveira Nogueira
The transition from flowering to fruit production, namely fruit set, is crucial to ensure successful sexual plant reproduction. Although studies have described the importance of hormones (i.e., auxin and gibberelins) in controlling fruit set after pollination and fertilization, the role of microRNA-based regulation during ovary development and fruit set is still poorly understood. Here we show that microRNA159/GAMYB1 and -2 pathway (the miR159/GAMYB1/2 module) is crucial for tomato ovule development and fruit set...
July 17, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28710486/comprehensive-transcriptomics-and-proteomics-analyses-of-pollinated-and-parthenocarpic-litchi-litchi-chinensis-sonn-fruits-during-early-development
#7
Wei Liu, Maoshan Chen, Lijun Bai, Zhenhua Zhuang, Chao Fan, Nonghui Jiang, Junsheng Zhao, Shuaipeng Ma, Xu Xiang
Litchi (Litchi chinensis Sonn.) is an important fruit that is widely cultivated in tropical and subtropical areas. In this study, we used RNA-Seq and iTRAQ technologies to compare the transcriptomes and proteomes of pollinated (polLFs) and parthenocarpic (parLFs) litchi fruits during early development (1 day, 2 days, 4 days and 6 days). We identified 4,864 DEGs in polLFs and 3,672 in parLFs, of which 2,835 were shared and 1,051 were specifically identified in parLFs. Compared to po1LFs, 768 DEGs were identified in parLFs...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28695957/interactions-among-gibberellins-brassinosteroids-and-genes-regulate-stomatal-development-in-the-arabidopsis-hypocotyl
#8
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/28685994/gibberellin-regulated-protein-in-japanese-apricot-is-an-allergen-cross-reactive-to-pru-p-7
#9
Naoko Inomata, Mami Miyakawa, Michiko Aihara
BACKGROUND: Gibberellin-regulated protein (GRP, also known as peamaclein) was recently identified as a new marker allergen related to systemic reactions in peach allergy; however, its role in other fruit allergies is unknown. OBJECTIVE: To investigate the allergenicity of Japanese apricot (JA) GRP and clarify the clinical characteristics of JA allergy patients with GRP sensitization. METHODS: Seven patients (two males, five females, mean age 28...
July 6, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28676808/gibberellins-promote-brassinosteroids-action-and-both-increase-heterosis-for-plant-height-in-maize-zea-mays-l
#10
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
#11
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/28668394/colonization-by-the-endophyte-piriformospora-indica-leads-to-early-flowering-in-arabidopsis-thaliana-likely-by-triggering-gibberellin-biosynthesis
#12
Dongjin Kim, Mohamad E Abdelaziz, Valentine Otang Ntui, Xiujie Guo, Salim Al-Babili
Piriformospora indica is an endophytic fungus colonizing roots of a wide variety of plants. Previous studies showed that P. indica promotes early flowering and plant growth in the medicinal plant Coleus forskohlii. To determine the impact of P. indica on flowering time in Arabidopsis, we co-cultivated the plants with P. indica under long day condition. P. indica inoculated Arabidopsis plants displayed significant early flowering phenotype. qRT-PCR analysis of colonized plants revealed an up-regulation of flowering regulatory (FLOWERING LOCUS T, LEAFY, and APETALA1) and gibberellin biosynthetic (Gibberellin 20-Oxidase2, Gibberellin 3-Oxidase1 and Gibberellin requiring1) genes, while the flowering-repressing gene FLOWERING LOCUS C was down regulated...
June 28, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28666057/silencing-osslr1-enhances-the-resistance-of-rice-to-the-brown-planthopper-nilaparvata-lugens
#13
Jin Zhang, Ting Luo, Wanwan Wang, Tiantian Cao, Ran Li, Yonggen Lou
DELLA proteins, negative regulators of the gibberellin (GA) pathway, play important roles in plant growth, development and pathogen resistance by regulating multiple phytohormone signals. Yet, whether and how they regulate plant herbivore resistance remains unknown. We found that the expression of the rice DELLA gene OsSLR1 was down-regulated by an infestation of female adults of the brown planthopper (BPH) Nilaparvata lugens. On one hand, OsSLR1 positively regulated BPH-induced levels of two mitogen-activated protein kinase and four WRKY transcripts, and of jasmonic acid, ethylene and H2 O2 ...
June 30, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28645249/comparative-transcriptomic-analysis-of-the-evolution-and-development-of-flower-size-in-saltugilia-polemoniaceae
#14
Jacob B Landis, Douglas E Soltis, Pamela S Soltis
BACKGROUND: Flower size varies dramatically across angiosperms, representing innovations over the course of >130 million years of evolution and contributing substantially to relationships with pollinators. However, the genetic underpinning of flower size is not well understood. Saltugilia (Polemoniaceae) provides an excellent non-model system for extending the genetic study of flower size to interspecific differences that coincide with variation in pollinators. RESULTS: Using targeted gene capture methods, we infer phylogenetic relationships among all members of Saltugilia to provide a framework for investigating the genetic control of flower size differences via RNA-Seq de novo assembly...
June 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28643859/gibberellic-and-kaurenoic-hybrid-strigolactone-mimics-for-seed-germination-of-parasitic-weeds
#15
Rondinelle G Pereira, Antonio Cala, Mónica Fernández-Aparicio, José M G Molinillo, Maria A D Boaventura, Francisco A Macías
BACKGROUND: Parasitic weeds are widespread and they cause significant losses in important crops. Their germination requires the detection of crop-derived molecules such as strigolactones. Strigolactone mimics are germination-inducing molecules with potential to apply the suicidal germination strategy for seed bank control of parasitic weeds. RESULTS: Attachment of the D-ring, which is instrumental in the germination process of seeds of parasitic weeds, has been carried out to gibberellin (GA3 ) and kaurenoic as the scaffold...
June 23, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28637832/autophosphorylation-affects-substrate-binding-affinity-of-tobacco-ca2-dependent-protein-kinase1
#16
Takeshi Ito, Sarahmi Ishida, Shota Oe, Jutarou Fukazawa, Yohsuke Takahashi
Protein kinases regulate diverse physiological processes. Because many kinases preserve inherent autophosphorylation capability, autophosphorylation appears to be one of the most important mechanisms for cellular signaling. However, physiological functions of autophosphorylation are still largely unknown other than the self-activation by phosphorylation of activation loop in the catalytic domain. REPRESSION OF SHOOT GROWTH (RSG) is the transcription factor involved in gibberellin (GA) feedback regulation. The tobacco (Nicotiana tabacum) Ca2+-dependent protein kinase, NtCDPK1, phosphorylates RSG, resulting in the negative regulation of RSG...
June 21, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28631319/herbivory-induced-jasmonates-constrain-plant-sugar-accumulation-and-growth-by-antagonizing-gibberellin-signaling-and-not-by-promoting-secondary-metabolite-production
#17
Ricardo A R Machado, Ian T Baldwin, Matthias Erb
Plants respond to herbivory by reconfiguring hormonal networks, increasing secondary metabolite production and decreasing growth. Furthermore, some plants display a decrease in leaf energy reserves in the form of soluble sugars and starch, leading to the hypothesis that herbivory-induced secondary metabolite production and growth reduction may be linked through a carbohydrate-based resource trade-off. In order to test the above hypothesis, we measured leaf carbohydrates and plant growth in seven genetically engineered Nicotiana attenuata genotypes that are deficient in one or several major herbivore-induced, jasmonate-dependent defensive secondary metabolites and proteins...
July 2017: New Phytologist
https://www.readbyqxmd.com/read/28628670/combining-ability-heritability-and-genotypic-relations-of-different-physiological-traits-in-cacao-hybrids
#18
Allan Silva Pereira, Alex-Alan Furtado de Almeida, Márcia Christina da Silva Branco, Marcio Gilberto Cardoso Costa, Dario Ahnert
Selecting parents and evaluating progenies is a very important step in breeding programs and involves approaches such as understanding the initial stages of growth and characterizing the variability among genotypes for different parameters, such as physiological, growth, biomass partitioning and nutrient translocation to the aerial part. In these cases, facilitating tools can be used to understand the involved gene dynamics, such as diallel crosses and genetic and phenotypic correlations. Our main hypothesis is that the contrasting phenotypes of these parental genotypes of cocoa used are due to genetic factors, and progenies derived from crosses of these parental genotypes are useful for breeding programs related to plant architecture, physiological parameters and translocation of mineral nutrients...
2017: PloS One
https://www.readbyqxmd.com/read/28628628/transcriptional-mechanisms-associated-with-seed-dormancy-and-dormancy-loss-in-the-gibberellin-insensitive-sly1-2-mutant-of-arabidopsis-thaliana
#19
Sven K Nelson, Camille M Steber
While widespread transcriptome changes were previously observed with seed dormancy loss, this study specifically characterized transcriptional changes associated with the increased seed dormancy and dormancy loss of the gibberellin (GA) hormone-insensitive sleepy1-2 (sly1-2) mutant. The SLY1 gene encodes the F-box subunit of an SCF E3 ubiquitin ligase needed for GA-triggered proteolysis of DELLA repressors of seed germination. DELLA overaccumulation in sly1-2 seeds leads to increased dormancy that can be rescued without DELLA protein destruction either by overexpression of the GA receptor, GA-INSENSITIVE DWARF1b (GID1b-OE) (74% germination) or by extended dry after-ripening (11 months, 51% germination)...
2017: PloS One
https://www.readbyqxmd.com/read/28622672/physiological-effects-of-single-and-multi-walled-carbon-nanotubes-on-rice-seedlings
#20
Hao Zhang, Mengxia Yue, Xueke Zheng, Chengshen Xie, Hong Zhou, Lijia Li
In this paper, single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) were found to accelerate leaf growth and development of rice seedlings at a low concentration (20 mg/L), accompanied with the increased chlorophyll content and net photosynthetic rate (PN). Quantitative real-time polymerase chain reaction (RT-PCR) results indicated that both SWCNTs and MWCNTs significantly increased expression of genes associated with chloroplast development and cell sizes. Further analysis revealed that the abscisic acid (ABA) content decreased and the gibberellin (GA) content increased while the content of O2 and H2O2 was slightly elevated and the activities of antioxidative enzymes (SOD, EC 1...
June 14, 2017: IEEE Transactions on Nanobioscience
keyword
keyword
82898
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"