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https://www.readbyqxmd.com/read/29332310/advances-and-current-challenges-in-calcium-signaling
#1
REVIEW
Jörg Kudla, Dirk Becker, Erwin Grill, Rainer Hedrich, Michael Hippler, Ursula Kummer, Martin Parniske, Tina Romeis, Karin Schumacher
Content I. II. III. IV. V. VI. VII VIII IX X XI ORCID References SUMMARY: Temporally and spatially defined changes in Ca2+ concentration in distinct compartments of cells represent a universal information code in plants. Recently, it has become evident that Ca2+ signals not only govern intracellular regulation but also appear to contribute to long distance or even organismic signal propagation and physiological response regulation. Ca2+ signals are shaped by an intimate interplay of channels and transporters, and during past years important contributing individual components have been identified and characterized...
January 14, 2018: New Phytologist
https://www.readbyqxmd.com/read/29332296/plant-cell-cultures-as-model-systems-to-study-programmed-cell-death
#2
Sara Cimini, Maria Beatrice Ronci, Elisabetta Barizza, Maria Concetta de Pinto, Vittoria Locato, Fiorella Lo Schiavo, Laura De Gara
The study of programmed cell death (PCD) activated in a certain group of cells is complex when analyzed in the whole plant. Plant cell suspension cultures are useful when investigating PCD triggered by environmental and developmental stimuli. Due to their homogeneity and the possibility to synchronize their responses induced by external stimuli, these cultures are used for studying the signaling pathways leading to PCD. The first problem in the analysis of PCD in cell cultures is the quantification of cell viability/death over time...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29326007/direct-recovery-of-boiler-residue-by-combustion-synthesis
#3
Homan Nourbaghaee, Ahmad Ghaderi Hamidi, Mahdi Pourabdoli
Boiler residue (BR) of thermal power plants is one of the important secondary sources for vanadium production. In this research, the aluminothermic self-propagating high-temperature synthesis (SHS) was used for recovering the transition metals of BR for the first time. The effects of extra aluminum as reducing agent and flux to aluminum ratio (CaO/Al) were studied and the efficiency of recovery and presence of impurities were measured. Aluminothermic reduction of vanadium and other metals was carried out successfully by SHS without any foreign heat source...
January 8, 2018: Waste Management
https://www.readbyqxmd.com/read/29324770/phosphorus-application-reduces-aluminum-toxicity-in-two-eucalyptus-clones-by-increasing-its-accumulation-in-roots-and-decreasing-its-content-in-leaves
#4
Weichao Teng, Yachao Kang, Wenjuan Hou, Houzhen Hu, Wenji Luo, Jie Wei, Linghui Wang, Boyu Zhang
Under acidic conditions, aluminum (Al) toxicity is an important factor limiting plant productivity; however, the application of phosphorus (P) might alleviate the toxic effects of Al. In this study, seedlings of two vegetatively propagated Eucalyptus clones, E. grandis × E. urophylla 'G9' and E. grandis × E. urophylla 'DH32-29'were subjected to six treatments (two levels of Al stress and three levels of P). Under excessive Al stress, root Al content was higher, whereas shoot and leaf Al contents were lower with P application than those without P application...
2018: PloS One
https://www.readbyqxmd.com/read/29316514/risk-based-cost-benefit-analysis-for-evaluating-microbial-risk-mitigation-in-a-drinking-water-system
#5
Viktor Bergion, Andreas Lindhe, Ekaterina Sokolova, Lars Rosén
Waterborne outbreaks of gastrointestinal diseases can cause large costs to society. Risk management needs to be holistic and transparent in order to reduce these risks in an effective manner. Microbial risk mitigation measures in a drinking water system were investigated using a novel approach combining probabilistic risk assessment and cost-benefit analysis. Lake Vomb in Sweden was used to exemplify and illustrate the risk-based decision model. Four mitigation alternatives were compared, where the first three alternatives, A1-A3, represented connecting 25, 50 and 75%, respectively, of on-site wastewater treatment systems in the catchment to the municipal wastewater treatment plant...
December 27, 2017: Water Research
https://www.readbyqxmd.com/read/29304205/root-type-matters-measurement-of-water-uptake-by-seminal-crown-and-lateral-roots-in-maize
#6
Mutez Ali Ahmed, Mohsen Zarebanadkouki, Félicien Meunier, Mathieu Javaux, Anders Kaestner, Andrea Carminati
The ability of plants to take up water from the soil depends on both the root architecture and the distribution and evolution of the hydraulic conductivities among root types and along the root length. The mature maize (Zea mays L.) root system is composed of primary, seminal, and crown roots together with their respective laterals. Our understanding of root water uptake of maize is largely based on measurements of primary and seminal roots. Crown roots might have a different ability to extract water from the soil, but their hydraulic function remains unknown...
January 3, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29301148/current-perspectives-on-biotechnological-cannabinoid-production-in-plants
#7
Julia Schachtsiek, Heribert Warzecha, Oliver Kayser, Felix Stehle
The plant Cannabis sativa contains a number of psychoactive chemical compounds, the cannabinoids, which possess a significant pharmaceutical potential. Recently, the usage of Cannabis for medicinal purposes was legalized in many countries. Thus, the study on the influence of different cannabinoids in combination with other Cannabis-derived compounds with respect to the treatment of various diseases becomes increasingly important. Besides the production of distinct cannabinoids in a heterologous host, like tobacco or yeast, transgenic Cannabis plants would be a suitable alternative to modify and therefore optimize the cannabinoid profile...
January 4, 2018: Planta Medica
https://www.readbyqxmd.com/read/29291152/efficient-immunodiagnosis-of-citrus-yellow-mosaic-virus-using-polyclonal-antibodies-with-an-expressed-recombinant-virion-associated-protein
#8
P Vignesh Kumar, Susheel Kumar Sharma, Narayan Rishi, Virendra Kumar Baranwal
Citrus yellow mosaic virus (CYMV) is a member of genus Badnavirus of the family Caulimoviridae. It is the causal agent of citrus yellow mosaic disease in citrus and causes reduction in yield. As the virus is vegetative propagated by grafting, development of high-throughput diagnosis methods based on serological techniques is a prerequisite for production of healthy virus-free planting material. The current study describes the development of polyclonal antibodies raised in rabbits against purified recombinant virion-associated protein (rVAP) encoded by ORF-II of CYMV...
January 2018: 3 Biotech
https://www.readbyqxmd.com/read/29290035/endosymbionts-differentially-alter-exploratory-probing-behavior-of-a-nonpersistent-plant-virus-vector
#9
G Angelella, V Nalam, P Nachappa, J White, I Kaplan
Insect endosymbionts (hereafter, symbionts) can modify plant virus epidemiology by changing the physiology or behavior of vectors, but their role in nonpersistent virus pathosystems remains uninvestigated. Unlike propagative and circulative viruses, nonpersistent plant virus transmission occurs via transient contamination of mouthparts, making direct interaction between symbiont and virus unlikely. Nonpersistent virus transmission occurs during exploratory intracellular punctures with styletiform mouthparts when vectors assess potential host-plant quality prior to phloem feeding...
December 30, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/29289292/stable-oligonucleotide-functionalized-gold-nanosensors-for-environmental-biocontaminant-monitoring
#10
Maria V Riquelme, Weinan Leng, Marcos Carzolio, Amy Pruden, Peter Vikesland
The global propagation of environmental biocontaminants such as antibiotic resistant pathogens and their antibiotic resistance genes (ARGs) is a public health concern that highlights the need for improved monitoring strategies. Here, we demonstrate the environmental stability and applicability of an oligonucleotide-functionalized gold nanosensor. The mecA ARG was targeted as model biocontaminant due to its presence in clinically-relevant pathogens and to its emergence as an environmental contaminant. mecA-specific nanosensors were tested for antibiotic resistance gene (ARG) detection in ARG-spiked effluent from four wastewater treatment plants (WWTPs)...
December 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29288326/fverga1-encoding-a-della-protein-negatively-regulates-runner-production-in-fragaria-vesca
#11
Weijia Li, Junxiang Zhang, Hongying Sun, Shouming Wang, Keqin Chen, Yuexue Liu, He Li, Yue Ma, Zhihong Zhang
FveRGA1 was highly expressed in tender tissues such as young leaves and stem apices and was localized in the nucleus. RNAi silencing of FveRGA1 in non-runnering woodland strawberry produced many runners. FveRGA1 is thus a key gene controlling strawberry runner formation. The propagation of strawberry is mainly based on runners, while the genes controlling runner production have not been well characterized. Exogenous applications of optimum concentration gibberellins (GAs) promote runner formation in strawberry cultivation and GA can accelerate the degradation of DELLA proteins...
December 29, 2017: Planta
https://www.readbyqxmd.com/read/29284987/efficient-regeneration-system-for-rapid-multiplication-of-clean-planting-material-of-ensete-ventricosum-welw-cheesman
#12
Jaindra Tripathi, Jonathan Matheka, Ibsa Merga, Endale Gebre, Leena Tripathi
Enset (Ensete ventricosum (Welw.) Cheesman) is an economically important staple food crop in Ethiopia, especially in the southern and southwestern regions. It is called "false banana" due to its resemblance to banana, but inability to produce any edible fruit. The crop is clonally propagated using field-grown suckers. This study reports the development of a robust regeneration technique to propagate large numbers of plantlets using corm discs containing intercalary meristematic tissues. Hundreds of shoot buds were induced from corm discs of enset cultivar 'Bedadeti' cultured on Murashige and Skoog (MS) medium supplemented with 1...
2017: In Vitro Cellular & Developmental Biology. Plant: Journal of the Tissue Culture Association
https://www.readbyqxmd.com/read/29278928/exploring-plant-tissue-culture-in-withania-somnifera-l-dunal-in-vitro-propagation-and-secondary-metabolite-production
#13
Shasmita, Manoj K Rai, Soumendra K Naik
Withania somnifera (L.) Dunal (family: Solanaceae), commonly known as "Indian Ginseng", is a medicinally and industrially important plant of the Indian subcontinent and other warmer parts of the world. The plant has multi-use medicinal potential and has been listed among 36 important cultivated medicinal plants of India that are in high demand for trade due to its pharmaceutical uses. The medicinal importance of this plant is mainly due to the presence of different types of steroidal lactones- withanolides in the roots and leaves...
December 26, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/29273862/heterorhizy-and-fine-root-architecture-of-rabbiteye-blueberry-vaccinium-virgatum-softwood-cuttings
#14
Takashi Baba, Satoshi Nakaba, Satoshi Noma, Ryo Funada, Takuya Ban
All fine root systems consist of individual fine roots. Individual roots have morphological, anatomical, and functional heterogeneity (heterorhizy). Heterorhizy plays crucial roles in plant ecosystems. However, in many species, the heterorhizy and fine root system architecture based on individual root units are unclear. This study investigated heterorhizy along the root system architecture of Vaccinium virgatum Ait (rabbiteye blueberry) softwood-cuttings (propagated from annual shoots in growing season) using protoxylem groups (PGs), a classification according to the number of protoxylem poles, as an indicator of individual root traits...
December 22, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/29259612/desiccation-treatment-and-endogenous-iaa-levels-are-key-factors-influencing-high-frequency-somatic-embryogenesis-in-cunninghamia-lanceolata-lamb-hook
#15
Xiaohong Zhou, Renhua Zheng, Guangxin Liu, Yang Xu, Yanwei Zhou, Thomas Laux, Yan Zhen, Scott A Harding, Jisen Shi, Jinhui Chen
Cunninghamia lanceolata (Lamb.) Hook (Chinese fir) is an important tree, commercially and ecologically, in southern China. The traditional regenerating methods are based on organogenesis and cutting propagation. Here, we report the development of a high-frequency somatic embryogenesis (SE) regeneration system synchronized via a liquid culture from immature zygotic embryos. Following synchronization, PEM II cell aggregates were developmentally equivalent in appearance to cleaved zygotic embryos. Embryo and suspensor growth and subsequent occurrence of the apical and then the cotyledonary meristems were similar for zygotic and SE embryo development...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29258434/genome-wide-identification-characterization-and-evolutionary-analysis-of-flowering-genes-in-radish-raphanus-sativus-l
#16
Jinglei Wang, Yang Qiu, Feng Cheng, Xiaohua Chen, Xiaohui Zhang, Haiping Wang, Jiangping Song, Mengmeng Duan, Haohui Yang, Xixiang Li
BACKGROUND: Radish (Raphanus sativus L.) belongs to the family Brassicaceae, and is an economically important root crop grown worldwide. Flowering is necessary for plant propagation, but it is also an important agronomic trait influencing R. sativus fleshy taproot yield and quality in the case of an imbalance between vegetative and reproductive growth. There is currently a lack of detailed information regarding the pathways regulating the flowering genes or their evolution in R. sativus...
December 19, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29243424/-tissue-culture-of-callus-and-establishment-of-regeneration-system-of-tussilago-farfara-petiole
#17
Ji-Wen Ren, Ying Lei, Xiao-Ling Li
Young petiole of Tussilago farfara was used as the material to investigate the plant growth regulators which could influence in vitro culture and plant regeneration and to establish rapid propagation technique. The ideal sterilization method was that young petiole of T. farfara was sterilized with 75% ethanol for 30 s, and then transferred to saturated bleaching power supernatant for 15 min. The suitable medium for callus induction was MS+6-BA 3.0 mg•L⁻¹+2,4-D 2.0 mg•L⁻¹ with 96.2% induction rate...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29242626/stable-transgenerational-epigenetic-inheritance-requires-a-dna-methylation-sensing-circuit
#18
Ben P Williams, Mary Gehring
Epigenetic states are stably propagated in eukaryotes. In plants, DNA methylation patterns are faithfully inherited over many generations but it is unknown how the dynamic activities of cytosine DNA methyltransferases and 5-methylcytosine DNA glycosylases interact to maintain epigenetic homeostasis. Here we show that a methylation-sensing gene regulatory circuit centered on a 5-methylcytosine DNA glycosylase gene is required for long-term epigenetic fidelity in Arabidopsis. Disrupting this circuit causes widespread methylation losses and abnormal phenotypes that progressively worsen over generations...
December 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/29229917/whole-genome-sequencing-and-snv-genotyping-of-nebbiolo-vitis-vinifera-l-clones
#19
Giorgio Gambino, Alessandra Dal Molin, Paolo Boccacci, Andrea Minio, Walter Chitarra, Carla Giuseppina Avanzato, Paola Tononi, Irene Perrone, Stefano Raimondi, Anna Schneider, Mario Pezzotti, Franco Mannini, Ivana Gribaudo, Massimo Delledonne
'Nebbiolo' (Vitis vinifera) is among the most ancient and prestigious wine grape varieties characterised by a wide genetic variability exhibited by a high number of clones (vegetatively propagated lines of selected mother plants). However, limited information is available for this cultivar at the molecular and genomic levels. The whole-genomes of three 'Nebbiolo' clones (CVT 71, CVT 185 and CVT 423) were re-sequenced and a de novo transcriptome assembly was produced. Important remarks about the genetic peculiarities of 'Nebbiolo' and its intra-varietal variability useful for clonal identification were reported...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29225607/alternative-splicing-of-cipk3-results-in-distinct-target-selection-to-propagate-aba-signaling-in-arabidopsis
#20
Sibaji K Sanyal, Poonam Kanwar, Harsha Samtani, Kanwaljeet Kaur, Saroj K Jha, Girdhar K Pandey
Calcium (Ca2+) signaling is pivotal in transmission of information in the cell. Various Ca2+ sensing molecules work to sense and relay the encrypted messages to the intended targets in the cell to maintain this signal transduction. CBL-interacting protein kinases (CIPKs) are crucial components of Ca2+ signal transduction during various abiotic stresses. Although there are intron rich CIPKs in the plant genome but very little has been reported about their alternative splicing. Moreover the physiological significance of this event in the Ca2+ signaling is still elusive...
2017: Frontiers in Plant Science
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