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https://www.readbyqxmd.com/read/28938517/green-tea-camellia-sinensis-and-l-theanine-medicinal-values-and-beneficial-applications-in-humans-a-comprehensive-review
#1
REVIEW
Muhammad Saeed, Muhammad Naveed, Muhammad Arif, Mohib Ullah Kakar, Robina Manzoor, Mohamed Ezzat Abd El-Hack, Mahmoud Alagawany, Ruchi Tiwari, Rekha Khandia, Ashok Munjal, Kumaragurubaran Karthik, Kuldeep Dhama, Hafiz M N Iqbal, Maryam Dadar, Chao Sun
Green tea (Camellia sinensis) is a famous herb, and its extract has been extensively used in traditional Chinese medicinal system. In this context, several studies have revealed its health benefits and medicinal potentialities for several ailments. With ever increasing scientific knowledge, search for safer, potential and novel type of health-related supplements quest, scientists are re-directing their research interests to explore natural resources i.e. medicinal herbs/plant derived compounds. Green tea consumption has gained a special attention and popularity in the modern era of changing lifestyle...
September 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28936646/apomixis-engineering-the-ability-to-harness-hybrid-vigor-in-crop-plants
#2
Joann A Conner, Peggy Ozias-Akins
Apomixis, commonly defined as asexual reproduction through seed, is a reproductive trait that occurs in only a few minor crops, but would be highly valuable in major crops. Apomixis results in seed-derived progenies that are genetically identical to their maternal parent. The advantage of apomixis would lie in seed propagation of elite food, feed, and biofuel crops that are heterozygous such as hybrid corn and switchgrass or self-pollinating crops for which no commercial-scale hybrid production system is available...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28928401/metabolic-shift-in-sugars-and-amino-acids-regulates-sprouting-in-saffron-corm
#3
Jayram Bagri, Anupama Yadav, Khalid Anwar, Jeremy Dkhar, Sneh Lata Singla-Pareek, Ashwani Pareek
Saffron is one of the most expensive spices of the world. Since this spice is triploid and meiosis is unusual, it cannot reproduce sexually like other plants; rather, it is propagated vegetatively via an underground corm, which can withstand a long dry dormant period before sprouting. Thus, corms are indispensable to saffron propagation. To identify and analyse signature metabolites associated with the 'dormancy-sprouting' process, non-targeted GC-MS was performed at different stages of corm development. Comparative metabolite profiling reflected dissimilar profiles among the stages as portrayed by differential cluster patterns of metabolites in the PCA and PLS-DA analysis...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924509/in-vitro-asymbiotic-germination-for-micropropagation-of-the-recalcitrant-terrestrial-orchid-chloraea-crispa-orchidaceae
#4
Karla Quiroz, Jessica Saavedra, Hermine Vogel, Gabriela Verdugo, Peter D S Caligari, Rolando García-Gonzáles
PREMISE OF THE STUDY: Chloraea crispa is a terrestrial Orchidaceae species native to Chile, characterized by a beautiful and showy inflorescence. The species has a great potential for commercial exploitation in the cut flower industry, but it is essential to improve propagation methods to avoid endangering its natural populations. Because this species is hard to propagate using traditional greenhouse techniques, in vitro techniques offer an effective tool for its large-scale production in terms of germination, growth, and propagation...
August 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28922771/a-specific-role-of-iron-in-promoting-meristematic-cell-division-during-adventitious-root-formation
#5
Alexander Hilo, Fahimeh Shahinnia, Uwe Druege, Philipp Franken, Michael Melzer, Twan Rutten, Nicolaus von Wirén, Mohammad-Reza Hajirezaei
Adventitious root (AR) formation is characterized by a sequence of physiological and morphological processes and determined by external factors, including mineral nutrition, the impacts of which remain largely elusive. Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe) and a promotive action of ammonium (NH4+). The optimal application period for these nutrients corresponded to early division of meristematic cells in the rooting zone and coincided with increased transcript levels of mitotic cyclins...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28918078/assessment-of-environmental-impacts-and-operational-costs-of-the-implementation-of-an-innovative-source-separated-urine-treatment
#6
Elorri Igos, Mathilde Besson, Tomás Navarrete Gutiérrez, Ana Barbara Bisinella de Faria, Enrico Benetto, Ligia Barna, Aras Ahmadi, Mathieu Spérandio
Innovative treatment technologies and management methods are necessary to valorise the constituents of wastewater, in particular nutrients from urine (highly concentrated and can have significant impacts related to artificial fertilizer production). The FP7 project, ValuefromUrine, proposed a new two-step process (called VFU) based on struvite precipitation and microbial electrolysis cell (MEC) to recover ammonia, which is further transformed into ammonium sulphate. The environmental and economic impacts of its prospective implementation in the Netherlands were evaluated based on life cycle assessment (LCA) methodology and operational costs...
September 8, 2017: Water Research
https://www.readbyqxmd.com/read/28912794/histological-and-transcriptomic-analysis-during-bulbil-formation-in-lilium-lancifolium
#7
Panpan Yang, Leifeng Xu, Hua Xu, Yuchao Tang, Guoren He, Yuwei Cao, Yayan Feng, Suxia Yuan, Jun Ming
Aerial bulbils are an important propagative organ, playing an important role in population expansion. However, the detailed gene regulatory patterns and molecular mechanism underlying bulbil formation remain unclear. Triploid Lilium lancifolium, which develops many aerial bulbils on the leaf axils of middle-upper stem, is a useful species for investigating bulbil formation. To investigate the mechanism of bulbil formation in triploid L. lancifolium, we performed histological and transcriptomic analyses using samples of leaf axils located in the upper and lower stem of triploid L...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28891462/co-infection-with-a-wheat-rhabdovirus-causes-a-reduction-in-mal-de-r%C3%A3-o-cuarto-virus-titer-in-its-planthopper-vector
#8
A D Dumón, E B Argüello Caro, M F Mattio, V Alemandri, M Del Vas, G Truol
Mal de Río Cuarto virus (MRCV, Fijivirus, Reoviridae) causes one of the most important diseases in maize (Zea mays L.) in Argentina and has been detected in mixed infections with a rhabdovirus closely related to Maize yellow striate virus. In nature both viruses are able to infect maize and several grasses including wheat, and are transmitted in a persistent propagative manner by Delphacodes kuscheli Fennah (Hemiptera: Delphacidae). This work describes the interactions between MRCV and rhabdovirus within their natural vector and the consequences of such co-infection regarding virus transmission and symptom expression...
September 11, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28887328/experimental-evolution-in-photoautotrophic-microorganisms-as-a-means-of-enhancing-chloroplast-functions
#9
REVIEW
Dario Leister
The term 'experimental evolution' refers to short-term evolutionary experiments with microorganisms under controlled conditions in which selection is expected to occur. In combination with whole-genome sequencing and genetic engineering, the method has become a powerful tool to study evolutionary mechanisms and engineer new microbial variants. It has been most extensively used in the model species Escherichia coli and Saccharomyces cerevisiae, but more recently photosynthetic microorganisms have been subjected to experimental evolution...
September 7, 2017: Essays in Biochemistry
https://www.readbyqxmd.com/read/28886311/effect%C3%A2-of%C3%A2-sucrose-concentrations-on-stevia-rebaudiana-bertoni-tissue-culture-and-gene-expression
#10
T Ghorbani, D Kahrizi, M Saeidi, I Arji
Stevia rebaudiana (Bert.) Bertoni is known as sweet plant which it contains a high level of steviol glycosides in the leaves.  This plant has been used from centuries ago as a sweetener for tea. One of the most important steviol glycosides is stevioside that is attractive for diabetic persons. Tissue culture is the only rapid process for the mass propagation of stevia. One of the most important factors in the medium is sucrose that is a necessary for plant growth. In the present study, we use nodal segments of the stem as explants in mediums with different sucrose concentration (50 mM, 100mM and 150mM)...
August 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28878509/an-improved-micropropagation-system-ex-vitro-rooting-and-validation-of-genetic-homogeneity-in-wild-female-momordica-dioica-an-underutilized-nutraceutical-vegetable-crop
#11
Sumitra Kumari Choudhary, Ashok Kumar Patel, Harish, Smita Shekhawat, Narpat S Shekhawat
Momordica dioica Roxb. ex Willd., is a perennial and dioecious (2n = 28) plant of family Cucurbitaceae. Conventional methods of propagation through seeds, stem cuttings and rhizomatous/tuberous roots are inadequate for its mass cultivation as a vegetable crop. This paper reports an improved and efficient micropropagation method for wild female M. dioica using nodal explants. Shoot amplification was achieved using subculturing of in vitro raised shoots on MS medium supplemented with various concentrations of 6-benzylaminopurine (BAP) alone or in combination with indole-3-acetic acid (IAA)...
July 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/28876249/growing-substrates-for-aromatic-plant-species-in-green-roofs-and-water-runoff-quality-pilot-experiments-in-a-mediterranean-climate
#12
Cristina M Monteiro, Cristina S C Calheiros, Paulo Palha, Paula M L Castro
Green roof technology has evolved in recent years as a potential solution to promote vegetation in urban areas. Green roof studies for Mediterranean climates, where extended drought periods in summer contrast with cold and rainy periods in winter, are still scarce. The present research study assesses the use of substrates with different compositions for the growth of six aromatic plant species - Lavandula dentata, Pelargonium odoratissimum, Helichrysum italicum, Satureja montana, Thymus caespititius and T. pseudolanuginosus, during a 2-year period, and the monitoring of water runoff quality...
September 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28874507/a-specific-gibberellin-20-oxidase-dictates-the-flowering-runnering-decision-in-diploid-strawberry
#13
Tracey Tenreira, Maria Joao Pimenta Lange, Theo Lange, Cécile Bres, Marc Labadie, Amparo Monfort, Michel Hernould, Christophe Rothan, Beatrice Denoyes
Asexual and sexual reproduction occur jointly in many angiosperms. Stolons (elongated stems) are used for asexual reproduction in the crop species potato (Solanum tuberosum) and strawberry (Fragaria spp.), where they produce tubers and clonal plants, respectively. In strawberry, stolon production is essential for vegetative propagation at the expense of fruit yield, but the underlying molecular mechanisms are unknown. Here, we show that the stolon-deficiency trait of the runnerless (r) natural mutant in woodland diploid strawberry (Fragaria vesca) is due to a deletion in the active site of a gibberellin (GA) 20-oxidase (GA20ox) gene, which is expressed primarily in the axillary meristem dome and primordia and in developing stolons...
September 5, 2017: Plant Cell
https://www.readbyqxmd.com/read/28873459/divergent-lysm-effectors-contribute-to-the-virulence-of-beauveria-bassiana-by-evasion-of-insect-immune-defenses
#14
Kai Cen, Bing Li, Yuzhen Lu, Siwei Zhang, Chengshu Wang
The lysin motif (LysM) containing proteins can bind chitin and are ubiquitous in various organisms including fungi. In plant pathogenic fungi, a few LysM proteins have been characterized as effectors to suppress chitin-induced immunity in plant hosts and therefore contribute to fungal virulence. The effector mechanism is still questioned in fungus-animal interactions. In this study, we found that LysM proteins are also present in animal pathogenic fungi and have evolved divergently. The genome of the insect pathogen Beauveria bassiana encodes 12 LysM proteins, and the genes were differentially transcribed by the fungus when grown in different conditions...
September 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28871411/histodifferentiation-of-oil-palm-somatic-embryo-development-at-low-auxin-concentration
#15
M S Pádua, R S Santos, C R G Labory, V C Stein, E G Mendonça, E Alves, L V Paiva
Large-scale propagation of oil palm (Elaeis guineensis, Jacq.) is difficult due to its single apical meristem. Thus, obtaining plants is mainly through seed germination, and a long growing period is required before oil production is possible. An alternative to large-scale seedling production is indirect somatic embryogenesis. The aim of this study was to analyze the somatic embryogenesis process in oil palm (E. guineensis Jacq.) with amino acids and low concentrations of auxins. The Tenera hybrid was analyzed by cytochemical and ultrastructural methods and was used to regenerate oil palm plants...
September 4, 2017: Protoplasma
https://www.readbyqxmd.com/read/28870156/generation-of-expressed-sequence-tags-for-discovery-of-genes-responsible-for-floral-traits-of-chrysanthemum-morifolium-by-next-generation-sequencing-technology
#16
Katsutomo Sasaki, Nobutaka Mitsuda, Kenji Nashima, Kyutaro Kishimoto, Yuichi Katayose, Hiroyuki Kanamori, Akemi Ohmiya
BACKGROUND: Chrysanthemum morifolium is one of the most economically valuable ornamental plants worldwide. Chrysanthemum is an allohexaploid plant with a large genome that is commercially propagated by vegetative reproduction. New cultivars with different floral traits, such as color, morphology, and scent, have been generated mainly by classical cross-breeding and mutation breeding. However, only limited genetic resources and their genome information are available for the generation of new floral traits...
September 4, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28866761/t-protein-is-present-in-large-excess-over-the-other-proteins-of-the-glycine-cleavage-system-in-leaves-of-arabidopsis
#17
Stefan Timm, Jonas Giese, Nadja Engel, Maria Wittmiß, Alexandra Florian, Alisdair R Fernie, Hermann Bauwe
T-protein is present in large excess over the other proteins of the glycine cleavage system in leaves of Arabidopsis and therefore, exerts little control over the photorespiratory pathway. T-protein is the aminomethyltransferase of the glycine cleavage multienzyme system (GCS), also known as the glycine decarboxylase complex, and essential for photorespiration and one-carbon metabolism. Here, we studied what effects varying levels of the GCS T-protein would have on GCS activity, the operation of the photorespiratory pathway, photosynthesis, and plant growth...
September 2, 2017: Planta
https://www.readbyqxmd.com/read/28865805/de-novo-root-regeneration-from-leaf-explants-wounding-auxin-and-cell-fate-transition
#18
REVIEW
Lin Xu
Root organogenesis after tissue damage is a type of plant regeneration known as de novo root regeneration (DNRR). The DNRR process is widely exploited in agricultural technologies, such as cuttings for vegetative propagation. This review summarizes recent advances in our understanding of the cellular and molecular framework of DNRR, mainly focusing on rooting from Arabidopsis thaliana leaf explants. The framework comprises three successive phases, that is, early signaling, auxin accumulation, and cell fate transition, and involves two types of cells with different functions: the converter cell that converts the early signals as the input into auxin flux as the output; and the regeneration-competent cell that undergoes fate transition guided by auxin...
August 30, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28855842/efficient-and-reproducible-in-vitro-regeneration-of-solanum-lycopersicum-and-assessment-genetic-uniformity-using-flow-cytometry-and-spar-methods
#19
Abdulrahman A Alatar, Mohammad Faisal, Eslam M Abdel-Salam, Tomas Canto, Quaiser Saquib, Saad B Javed, Mohamed A El-Sheikh, Abdulaziz A Al-Khedhairy
In the present study, we develop an efficient and reproducible in vitro regeneration system for two cultivars viz., Jamila and Tomaland of Solanum lycopersicum L., an economically important vegetable crop throughout the world. Sterilization of seeds with 2.5% (v/v) NaOCl was found to be most effective, about 97% of seeds germinated on cotton in magenta box moistened with sterile half strength (½)Murashige and Skoog (MS) medium. Regeneration efficiency of cotyledonary leaf (CL) and cotyledonary node (CN) explants derived from 08 days old aseptic seedling were assessed on MS medium supplemented with different concentrations of auxins and cytokinin...
September 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28843248/moringa-oleifera-root-induces-cancer-apoptosis-more-effectively-than-leave-nanocomposites-and-its-free-counterpart
#20
Ahmed A Abd-Rabou, Aboelfetoh M Abdalla, Naglaa A Ali, Khairy MA Zoheir
Medicinal plants are important elements of indigenous medical system that have persisted in developing countries. Many of the botanical chemo-preventions currently used as potent anticancer agents. However, some important anticancer agents are still extracted from plants because they cannot be synthesized chemically on a commercial scale due to their complex structures that often contain several chiral centers. The aim of this study was to test different extracts from the Moringa oleifera leaves (ML), its PLGA-CS-PEG nanocomposites (MLn), as well as root core (Rc) and outer (Ro) parts for activity against hepatocarcinoma HepG2, breast MCF7, and colorectal HCT 116/ Caco-2 cells in vitro...
August 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
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