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https://www.readbyqxmd.com/read/30143593/sucrose-signaling-regulates-anthocyanin-biosynthesis-through-a-mapk-cascade-in-arabidopsis-thaliana
#1
Lai-Sheng Meng, Meng-Ke Xu, Wen Wan, Fei Yu, Cong Li, Jing-Yi Wang, Zhi-Qin Wei, Meng-Jiao Lv, Xiao-Ying Cao, Zong-Yun Li, Ji-Hong Jiang
Anthocyanin accumulation specifically depends on sucrose (Suc) signaling. However, the molecular basis of this process remains unknown. In this study, in vitro pull-down assays identified ETHYLENE-INSENSITIVE3 (EIN3), a component of both sugar signaling or/and metabolism. This protein interacted with YDA, and the physiological relevance of this interaction was confirmed by in planta co-immunoprecipitation, yeast two-hybrid (Y2H) assay, and bimolecular fluorescence complementation. Ethylene insensitive3-like 1 ( eil1 ) ein3 double-mutant seedlings, but not ein3-1 seedlings, showed anthocyanin accumulation...
October 2018: Genetics
https://www.readbyqxmd.com/read/30002258/map-kinase-phosphatase1-controls-cell-fate-transition-during-stomatal-development
#2
Farzaneh Tamnanloo, Hassan Damen, Raman Jangra, Jin Suk Lee
Stomata on the plant epidermis control gas and water exchange and are formed by MAPK-dependent processes. Although the contribution of MAP KINASE3 (MPK3) and MPK6 (MPK3/MPK6) to the control of stomatal patterning and differentiation in Arabidopsis ( Arabidopsis thaliana ) has been examined extensively, how they are inactivated and regulate distinct stages of stomatal development is unknown. Here, we identify a dual-specificity phosphatase, MAP KINASE PHOSPHATASE1 (MKP1), which promotes stomatal cell fate transition by controlling MAPK activation at the early stage of stomatal development...
September 2018: Plant Physiology
https://www.readbyqxmd.com/read/29871619/suubi4her-a-study-protocol-to-examine-the-impact-and-cost-associated-with-a-combination-intervention-to-prevent-hiv-risk-behavior-and-improve-mental-health-functioning-among-adolescent-girls-in-uganda
#3
Fred M Ssewamala, Laura Gauer Bermudez, Torsten B Neilands, Claude A Mellins, Mary M McKay, Irv Garfinkel, Ozge Sensoy Bahar, Gertrude Nakigozi, Miriam Mukasa, Lindsay Stark, Christopher Damulira, Jennifer Nattabi, Apollo Kivumbi
BACKGROUND: Asset-based economic empowerment interventions, which take an integrated approach to building human, social, and economic capital, have shown promise in their ability to reduce HIV risk for young people, including adolescent girls, in sub-Saharan Africa. Similarly, community and family strengthening interventions have proven beneficial in addressing mental health and behavioral challenges of adolescents transitioning to adulthood. Yet, few programs aimed at addressing sexual risk have applied combination interventions to address economic stability and mental health within the traditional framework of health education and HIV counseling/testing...
June 5, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29789386/antagonistic-interactions-between-two-map-kinase-cascades-in-plant-development-and-immune-signaling
#4
Tongjun Sun, Yukino Nitta, Qian Zhang, Di Wu, Hainan Tian, Jin Suk Lee, Yuelin Zhang
Mitogen-activated protein kinase (MAPK) signaling plays important roles in diverse biological processes. In Arabidopsis , MPK3/MPK6, MKK4/MKK5, and the MAPKKK YODA (YDA) form a MAPK pathway that negatively regulates stomatal development. Brassinosteroid (BR) stimulates this pathway to inhibit stomata production. In addition, MPK3/MPK6 and MKK4/MKK5 also serve as critical signaling components in plant immunity. Here, we report that MAPKKK3/MAPKKK5 form a kinase cascade with MKK4/MKK5 and MPK3/MPK6 to transduce defense signals downstream of multiple plant receptor kinases...
July 2018: EMBO Reports
https://www.readbyqxmd.com/read/29528636/integration-of-environmental-and-developmental-or-metabolic-control-of-seed-mass-by-sugar-and-ethylene-metabolisms-in-arabidopsis
#5
Lai-Sheng Meng, Meng-Ke Xu, Wen Wan, Jing-Yi Wang
In higher plants, seed mass is an important to evolutionary fitness. In this context, seedling establishment positively correlates with seed mass under conditions of environmental stress. Thus, seed mass constitutes an important agricultural trait. Here, we show loss-of-function of YODA (YDA), a MAPKK Kinase, and decreased seed mass, which leads to susceptibility to drought. Furthermore, we demonstrate that yda disrupts sugar metabolisms but not the gaseous plant hormone, ethylene. Our data suggest that the transcription factor EIN3 (ETHYLENE-INSENSITIVE3), integral to both sugar and ethylene metabolisms, physically interacts with YDA...
April 4, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29451312/yoda-map3k-kinase-regulates-plant-immune-responses-conferring-broad-spectrum-disease-resistance
#6
Sara Sopeña-Torres, Lucía Jordá, Clara Sánchez-Rodríguez, Eva Miedes, Viviana Escudero, Sanjay Swami, Gemma López, Mariola Piślewska-Bednarek, Ines Lassowskat, Justin Lee, Yangnan Gu, Sabine Haigis, Danny Alexander, Sivakumar Pattathil, Antonio Muñoz-Barrios, Pawel Bednarek, Shauna Somerville, Paul Schulze-Lefert, Michael G Hahn, Dierk Scheel, Antonio Molina
Mitogen-activated protein kinases (MAPKs) cascades play essential roles in plants by transducing developmental cues and environmental signals into cellular responses. Among the latter are microbe-associated molecular patterns perceived by pattern recognition receptors (PRRs), which trigger immunity. We found that YODA (YDA) - a MAPK kinase kinase regulating several Arabidopsis developmental processes, like stomatal patterning - also modulates immune responses. Resistance to pathogens is compromised in yda alleles, whereas plants expressing the constitutively active YDA (CA-YDA) protein show broad-spectrum resistance to fungi, bacteria, and oomycetes with different colonization modes...
April 2018: New Phytologist
https://www.readbyqxmd.com/read/29291278/treatment-preferences-in-patients-with-early-glottic-cancer
#7
Yda van Loon, Martine Hendriksma, Ton P M Langeveld, Martin A de Jong, Rob J Baatenburg de Jong, Elisabeth V Sjögren
OBJECTIVE: For early glottic carcinoma, the 2 main treatment modalities are radiotherapy (RT) and transoral CO2 laser microsurgery (TLM). The aim of this study was to investigate treatment preferences and considerations in patients with early glottic carcinoma (T1-T2) who were given a choice between TLM and RT. SUBJECTS AND METHODS: Patients with early glottic cancer (suspected or confirmed extended T1 or limited T2) were counseled by an ENT-surgeon. A subset of 32 patients was also counseled by a radiotherapist...
March 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29056551/map-kinase-cascades-regulate-the-cold-response-by-modulating-ice1-protein-stability
#8
Chunzhao Zhao, Pengcheng Wang, Tong Si, Chuan-Chih Hsu, Lu Wang, Omar Zayed, Zheping Yu, Yingfang Zhu, Juan Dong, W Andy Tao, Jian-Kang Zhu
Mitogen-activated protein kinase cascades are important signaling modules that convert environmental stimuli into cellular responses. We show that MPK3, MPK4, and MPK6 are rapidly activated after cold treatment. The mpk3 and mpk6 mutants display increased expression of CBF genes and enhanced freezing tolerance, whereas constitutive activation of the MKK4/5-MPK3/6 cascade in plants causes reduced expression of CBF genes and hypersensitivity to freezing, suggesting that the MKK4/5-MPK3/6 cascade negatively regulates the cold response...
December 4, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28866185/monitoring-structural-features-biocompatibility-and-biological-efficacy-of-gamma-irradiated-methotrexate-loaded-spray-dried-microparticles
#9
Alice R de Oliveira, Philippe C Mesquita, Paula R L Machado, Kleber J S Farias, Yêda M B de Almeida, Matheus F Fernandes-Pedrosa, Alianda M Cornélio, Eryvaldo Sócrates T do Egito, Arnóbio A da Silva-Júnior
In this study, biodegradable and biocompatible gamma irradiated poly-(dl-lactide-co-glycolide) (PLGA) spray-dried microparticles were prepared aiming to improve the efficacy of methotrexate (MTX). The experimental design included three formulations of microparticles containing distinct drug amount (9%, 18%, and 27% w/w) and three distinct gamma irradiation dose (15kGy, 25kGy, and 30kGy). The physicochemical and drug release properties of the microparticles supported their biocompatibility and biological efficacy studies in different cell lines...
November 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28821747/the-integration-of-g%C3%AE-and-mapk-signaling-cascade-in-zygote-development
#10
Guo-Liang Yuan, Hong-Ju Li, Wei-Cai Yang
Cells respond to many signals with a limited number of signaling components. Heterotrimeric G proteins and MAPK cascades are universally used by eukaryotic cells to transduce signals in various developmental processes or stress responses by activating different effectors. MAPK cascade is integrated with G proteins by scaffold protein during plant immunity. However, the molecular relationship between G proteins and MAPK modules in plant development is still unclear. In this study, we demonstrate that Arabidopsis Gβ protein AGB1 interacts with MPK3 and 6, MKK4 and 5, as well as the regulatory domains of YODA (YDA), the upstream MEKK of MKK4/5...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28679143/varying-patterns-of-biomarkers-of-mineral-and-bone-metabolism-after-kidney-transplantation
#11
MULTICENTER STUDY
Agnieszka Makówka, Maciej Głyda, Ewa-Rutkowska Majewska, Michał Nowicki
Sclerostin inhibits Wnt/β-catenin signaling pathway, thereby decreasing bone formation. Osteoblast stimulating actions of parathyroid hormone (PTH) are mediated by suppression of sclerostin. Thus, sclerostin may reflect both bone metabolism and parathyroid function. The study was aimed to analyze the patterns of the changes of mineral and bone biomarkers for 9 months following kidney transplantation (KTx). Thirty-five patients after KTx were included into a 9-month observational study. Serum creatinine, calcium, phosphorus, 25-OH vitamin D, PTH, fibroblast growth factor 23 (FGF-23), sclerostin, and bone-specific alkaline phosphatase (BAP) were measured before KTx, and 1, 2 weeks, and 1, 2, 3, 4, 5, 6, and 9 months thereafter...
August 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28489361/soluble-sugar-accumulation-can-influence-seed-size-via-an3-yda-gene-cascade
#12
Lai-Sheng Meng, Meng-Ke Xu, Dan Li, Ming-Ming Zhou, Ji-Hong Jiang
In higher plants, seed size is central to many aspects in evolutionary fitness and is a crucial agricultural trait. In this study, Arabidopsis an3 (angustifolia3) mutants present with increased seed size. Target-gene analysis revealed that YDA, which encodes a mitogen-activated protein kinase kinase kinase, is a target gene of AN3. Indeed, the loss of YDA function decreases seed size. Furthermore, AN3 and YDA mutations both disrupt normal sucrose and glucose contents and cause altered seed size in an3 or yda mutants...
May 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28404632/transcriptional-integration-of-paternal-and-maternal-factors-in-the-arabidopsis-zygote
#13
Minako Ueda, Ernst Aichinger, Wen Gong, Edwin Groot, Inge Verstraeten, Lam Dai Vu, Ive De Smet, Tetsuya Higashiyama, Masaaki Umeda, Thomas Laux
In many plants, the asymmetric division of the zygote sets up the apical-basal axis of the embryo. Unlike animals, plant zygotes are transcriptionally active, implying that plants have evolved specific mechanisms to control transcriptional activation of patterning genes in the zygote. In Arabidopsis , two pathways have been found to regulate zygote asymmetry: YODA (YDA) mitogen-activated protein kinase (MAPK) signaling, which is potentiated by sperm-delivered mRNA of the SHORT SUSPENSOR (SSP) membrane protein, and up-regulation of the patterning gene WOX8 by the WRKY2 transcription factor...
March 15, 2017: Genes & Development
https://www.readbyqxmd.com/read/28199035/utility-approach-to-decision-making-in-extended-t1-and-limited-t2-glottic-carcinoma
#14
COMPARATIVE STUDY
Yda van Loon, Anne M Stiggelbout, Marieke M Hakkesteegt, Ton P M Langeveld, Rob J Baatenburg de Jong, Elisabeth V Sjögren
BACKGROUND: It is still undecided if endoscopic laser surgery or radiotherapy is the preferable treatment in extended T1 and limited T2 glottic tumors. Health utilities assessed from patients can aid in decision-making. METHODS: Patients treated for extended T1 or limited T2 glottic carcinoma by laser surgery (n = 12) or radiotherapy (n = 14) assigned health utilities using a visual analog scale (VAS), time tradeoff (TTO) technique and scored their voice handicap using the Voice Handicap Index (VHI)...
April 2017: Head & Neck
https://www.readbyqxmd.com/read/27920784/the-arabidopsis-angustifolia3-yoda-gene-cascade-induces-anthocyanin-accumulation-by-regulating-sucrose-levels
#15
Lai-Sheng Meng, Ying-Qiu Li, Meng-Qian Liu, Ji-Hong Jiang
Anthocyanin accumulation specifically depends on sucrose (Suc) signaling/levels. However, the gene cascades specifically involved in the Suc signaling/level-mediated anthocyanin biosynthetic pathway are still unknown. Arabidopsis ANGUSTIFOLIA3 (AN3), a transcription coactivator, is involved in the regulation of leaf shape and drought tolerance. Recently, an AN3-CONSTITUTIVE PHOTOMORPHOGENIC 1 gene cascade has been reported to regulate the light signaling-mediated anthocyanin accumulation. Target gene analysis indicates that AN3 is associated with the YODA (YDA) promoter, a mitogen-activated protein kinase kinase kinase, in vivo for inducing anthocyanin accumulation...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27746029/phosphorylation-of-the-polarity-protein-basl-differentiates-asymmetric-cell-fate-through-mapks-and-spch
#16
Ying Zhang, Xiaoyu Guo, Juan Dong
Cell polarization is commonly used for the regulation of stem cell asymmetric division in both animals and plants. Stomatal development in Arabidopsis, a process that produces breathing pores in the epidermis, requires asymmetric cell division to differentiate highly specialized guard cells while maintaining a stem cell population [1, 2]. The BREAKING OF ASYMMETRY IN THE STOMATAL LINEAGE (BASL) protein exhibits a polarized localization pattern in the cell and is required for differential cell fates resulting from asymmetric cell division [3]...
November 7, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/25892910/the-effects-of-temperature-and-nutritional-conditions-on-mycelium-growth-of-two-oyster-mushrooms-pleurotus-ostreatus-and-pleurotus-cystidiosus
#17
Ha Thi Hoa, Chun-Li Wang
The influences of temperature and nutritional conditions on the mycelium growth of oyster mushroom Pleurotus ostreatus (PO) and Pleurotus cystidiosus (PC) were investigated in laboratory experiment during the summer season of 2014. The results of the experiment indicated that potato dextrose agar (PDA) and yam dextrose agar (YDA) were the most suitable media for the mycelium growth of oyster mushroom PO while four media (PDA, YDA, sweet potato dextrose agar, and malt extract agar medium) were not significantly different in supporting mycelium growth of oyster mushroom PC...
March 2015: Mycobiology
https://www.readbyqxmd.com/read/25663618/pharmacokinetics-of-mycophenolate-sodium-co-administered-with-tacrolimus-in-the-first-year-after-renal-transplantation
#18
Joanna Sobiak, Matylda Resztak, Maciej Głyda, Paulina Szczepaniak, Maria Chrzanowska
We assessed the relations between MPA, free MPA (fMPA) and MPA glucuronide (MPAG) pharmacokinetics and the clinical condition of renal transplant recipients treated with EC-MPS and tacrolimus (Tac) in the first post-transplant year. In 18 adult patients blood samples were collected up to 12 h after EC-MPS oral administration. EC-MPS metabolites' plasma concentrations were determined using validated HPLC methods. All patients reached MPA area under the time-concentration curve (AUC0-12) above 30 µg h/mL...
August 2016: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/25599980/transcription-co-activator-arabidopsis-angustifolia3-an3-regulates-water-use-efficiency-and-drought-tolerance-by-modulating-stomatal-density-and-improving-root-architecture-by-the-transrepression-of-yoda-yda
#19
Lai-Sheng Meng, Shun-Qiao Yao
One goal of modern agriculture is the improvement of plant drought tolerance and water-use efficiency (WUE). Although stomatal density has been linked to WUE, the causal molecular mechanisms and engineered alternations of this relationship are not yet fully understood. Moreover, YODA (YDA), which is a MAPKK kinase gene, negatively regulates stomatal development. BR-INSENSITIVE 2 interacts with phosphorylates and inhibits YDA. However, whether YDA is modulated in the transcriptional level is still unclear. Plants lacking ANGUSTIFOLIA3 (AN3) activity have high drought stress tolerance because of low stomatal densities and improved root architecture...
September 2015: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/25063454/auxin-represses-stomatal-development-in-dark-grown-seedlings-via-aux-iaa-proteins
#20
Martin Balcerowicz, Aashish Ranjan, Laura Rupprecht, Gabriele Fiene, Ute Hoecker
Stomatal development is tightly regulated through internal and external factors that are integrated by a complex signalling network. Light represents an external factor that strongly promotes stomata formation. Here, we show that auxin-resistant aux/iaa mutants, e.g. axr3-1, exhibit a de-repression of stomata differentiation in dark-grown seedlings. The higher stomatal index in dark-grown axr3-1 mutants when compared with the wild type is due to increased cell division in the stomatal lineage. Excessive stomata in dark-grown seedlings were also observed in mutants defective in auxin biosynthesis or auxin perception and in seedlings treated with the polar auxin transport inhibitor NPA...
August 2014: Development
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