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Phosphate nutrition plant

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https://www.readbyqxmd.com/read/28975735/engineering-camelina-sativa-l-crantz-for-enhanced-oil-and-seed-yields-by-combining-diacylglycerol-acyltransferase1-and-glycerol-3-phosphate-dehydrogenase-expression
#1
Sudesh Chhikara, Hesham M Abdullah, Parisa Akbari, Danny Schnell, Om Parkash Dhankher
Plant seed oils based liquid transportation fuels (i.e., biodiesel and green diesel) have tremendous potential as environmentally, economically and technologically feasible alternatives to petroleum-derived fuels. Due to their nutritional and industrial importance, one of the major objectives is to increase the seed yield and oil production of oilseed crops via biotechnological approaches. Camelina sativa, an emerging oilseed crop, has been proposed as an ideal crop for biodiesel and bioproducts applications...
October 4, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28946487/enhancement-of-gama-aminobutyric-acid-gaba-and-other-health-related-metabolites-in-germinated-red-rice-oryza-sativa-l-by-ultrasonication
#2
Junzhou Ding, Alexander V Ulanov, Mengyi Dong, Tewu Yang, Boris V Nemzer, Shanbai Xiong, Siming Zhao, Hao Feng
Red rice (Oryza sativa L.) that has a red (reddish brown) bran layer in de-hulled rice is known to contain rich biofunctional components. Germination is an effective technique to improve the nutritional quality, digestibility, and flavor of de-hulled rice. Ultrasonication, a form of physical stimulation, has been documented as a novel approach to improve the nutritional quality of plant-based food. This study was undertaken to test the use of ultrasound to enhance the nutritional value of red rice. Ultrasonication (5min, 16W/L) was applied to rice during soaking or after 66h germination...
January 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28893530/-combination-of-phosphorus-solubilizing-and-mobilizing-fungi-with-phosphate-rocks-and-volcanic-materials-to-promote-plant-growth-of-lettuce-lactuca-sativa-l
#3
María S Velázquez, Marta N Cabello, Lorena A Elíades, María L Russo, Natalia Allegrucci, Santiago Schalamuk
Arbuscular mycorrhizal fungi (AMF) increase the uptake of soluble phosphates, while phosphorus solubilizing fungi (S) promote solubilization of insoluble phosphates complexes, favoring plant nutrition. Another alternative to maintaining crop productivity is to combine minerals and rocks that provide nutrients and other desirable properties. The aim of this work was to combine AMF and S with pyroclastic materials (ashes and pumices) from Puyehue volcano and phosphate rocks (PR) from Rio Chico Group (Chubut) - to formulate a substrate for the production of potted Lactuca sativa...
September 8, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28882039/metabolic-profiling-on-alternaria-toxins-and-components-of-xinjiang-jujubes-incubated-with-pathogenic-alternaria-alternata-and-alternaria-tenuissima-via-orbitrap-high-resolution-mass-spectrometry
#4
Dongqiang Hu, Yingying Fan, Yanglan Tan, Ye Tian, Na Liu, Lan Wang, Duoyong Zhao, Cheng Wang, Aibo Wu
Xinjiang jujubes (Zizyphus rhamnaceae) are important agro-economical foods with the highest planting area and yields in China; however, black spot disease and contaminated Alternaria toxins have unfortunately caused a decline or loss of jujube nutritional quality in recent years. In this study, we used ultrahigh-performance liquid chromatography coupled to Orbitrap high-resolution mass spectrometry to profile both Alternaria toxins and components in three representative Xinjiang jujubes, Hami Huang, Hetian Jun, and Ruoqiang Hui...
September 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28861101/functional-disruption-of-a-chloroplast-pseudouridine-synthase-desensitizes-arabidopsis-plants-to-phosphate-starvation
#5
Shan Lu, Chenyi Li, Ye Zhang, Zai Zheng, Dong Liu
Phosphate (Pi) deficiency is a common nutritional stress of plants in both agricultural and natural ecosystems. Plants respond to Pi starvation in the environment by triggering a suite of biochemical, physiological, and developmental changes that increase survival and growth. The key factors that determine plant sensitivity to Pi starvation, however, are unclear. In this research, we identified an Arabidopsis mutant, dps1, with greatly reduced sensitivity to Pi starvation. The dps1 phenotypes are caused by a mutation in the previously characterized SVR1 (SUPPRESSION OF VARIAGATION 1) gene, which encodes a chloroplast-localized pseudouridine synthase...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28802165/the-world-according-to-garp-transcription-factors
#6
REVIEW
Alaeddine Safi, Anna Medici, Wojciech Szponarski, Sandrine Ruffel, Benoît Lacombe, Gabriel Krouk
Plant specific GARP transcription factor family (made of ARR-B and G2-like) contains genes with very diverse in planta functions: nutrient sensing, root and shoot development, floral transition, chloroplast development, circadian clock oscillation maintenance, hormonal transport and signaling. In this work we review: first, their structural but distant relationships with MYB transcription factors, second, their role in planta, third, the diversity of their Cis-regulatory elements, fourth, their potential protein partners...
October 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28782719/nutrient-exchange-and-regulation-in-arbuscular-mycorrhizal-symbiosis
#7
REVIEW
Wanxiao Wang, Jincai Shi, Qiujin Xie, Yina Jiang, Nan Yu, Ertao Wang
Most land plants form symbiotic associations with arbuscular mycorrhizal (AM) fungi. These are the most common and widespread terrestrial plant symbioses, which have a global impact on plant mineral nutrition. The establishment of AM symbiosis involves recognition of the two partners and bidirectional transport of different mineral and carbon nutrients through the symbiotic interfaces within the host root cells. Intriguingly, recent discoveries have highlighted that lipids are transferred from the plant host to AM fungus as a major carbon source...
September 12, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28765275/proline-accumulation-is-regulated-by-transcription-factors-associated-with-phosphate-starvation
#8
Dávid Aleksza, Gábor V Horváth, Györgyi Sándor, László Szabados
Pro accumulation in plants is a well-documented physiological response to osmotic stress caused by drought or salinity. In Arabidopsis (Arabidopsis thaliana), the stress and ABA-induced Δ1-PYRROLINE-5-CARBOXYLATE SYNTHETASE1 (P5CS1) gene was previously shown to control Pro biosynthesis in such adverse conditions. To identify regulatory factors that control the transcription of P5CS1, Y1H screens were performed with a genomic fragment of P5CS1, containing 1.2-kB promoter and 0.8-kb transcribed regions. The myeloblastosis (MYB)-type transcription factors PHOSPHATE STARVATION RESPONSE1 (PHR1) and PHR1-LIKE1 (PHL1) were identified to bind to P5CS1 regulatory sequences in the first intron, which carries a conserved PHR1-binding site (P1BS) motif...
September 2017: Plant Physiology
https://www.readbyqxmd.com/read/28725961/the-plasma-membrane-proteome-of-medicago-truncatula-roots-as-modified-by-arbuscular-mycorrhizal-symbiosis
#9
Achref Aloui, Ghislaine Recorbet, Christelle Lemaître-Guillier, Arnaud Mounier, Thierry Balliau, Michel Zivy, Daniel Wipf, Eliane Dumas-Gaudot
In arbuscular mycorrhizal (AM) roots, the plasma membrane (PM) of the host plant is involved in all developmental stages of the symbiotic interaction, from initial recognition to intracellular accommodation of intra-radical hyphae and arbuscules. Although the role of the PM as the agent for cellular morphogenesis and nutrient exchange is especially accentuated in endosymbiosis, very little is known regarding the PM protein composition of mycorrhizal roots. To obtain a global overview at the proteome level of the host PM proteins as modified by symbiosis, we performed a comparative protein profiling of PM fractions from Medicago truncatula roots either inoculated or not with the AM fungus Rhizophagus irregularis...
July 19, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28698354/enhanced-secondary-and-hormone-metabolism-in-leaves-of-arbuscular-mycorrhizal-medicago-truncatula
#10
Lisa Adolfsson, Hugues Nziengui, Ilka N Abreu, Jan Šimura, Azeez Beebo, Andrei Herdean, Jila Aboalizadeh, Jitka Široká, Thomas Moritz, Ondřej Novák, Karin Ljung, Benoît Schoefs, Cornelia Spetea
Arbuscular mycorrhizas (AM) are the most common symbiotic associations between a plant's root compartment and fungi. They provide nutritional benefit (mostly inorganic phosphate [Pi]), leading to improved growth, and nonnutritional benefits, including defense responses to environmental cues throughout the host plant, which, in return, delivers carbohydrates to the symbiont. However, how transcriptional and metabolic changes occurring in leaves of AM plants differ from those induced by Pi fertilization is poorly understood...
September 2017: Plant Physiology
https://www.readbyqxmd.com/read/28667635/genetically-modified-phytase-crops-role-in-sustainable-plant-and-animal-nutrition-and-ecological-development-a-review
#11
REVIEW
Chinreddy Subramanyam Reddy, Seong-Cheol Kim, Tanushri Kaul
Globally, plant-derivatives especially cereals and legumes are the major staple food sources for animals. The seeds of these crops comprise of phytic acid, the major repository form of the phosphorus, which is not digestible by simple-stomached animals. However, it is the most important factor responsible for impeding the absorption of minerals by plants that eventually results in less use of fertilizers that ultimately cause eutrophication in water bodies. Although abundant phosphorus (P) exists in the soils, plants cannot absorb most of the P due to its conversion to unavailable forms...
July 2017: 3 Biotech
https://www.readbyqxmd.com/read/28667402/phylogenetic-structural-and-functional-characterization-of-amt3-1-an-ammonium-transporter-induced-by-mycorrhization-among-model-grasses
#12
Sally Koegel, Delphine Mieulet, Sefer Baday, Odile Chatagnier, Moritz F Lehmann, Andres Wiemken, Thomas Boller, Daniel Wipf, Simon Bernèche, Emmanuel Guiderdoni, Pierre-Emmanuel Courty
In the arbuscular mycorrhizal (AM) symbiosis, plants satisfy part of their nitrogen (N) requirement through the AM pathway. In sorghum, the ammonium transporters (AMT) AMT3;1, and to a lesser extent AMT4, are induced in cells containing developing arbuscules. Here, we have characterized orthologs of AMT3;1 and AMT4 in four other grasses in addition to sorghum. AMT3;1 and AMT4 orthologous genes are induced in AM roots, suggesting that in the common ancestor of these five plant species, both AMT3;1 and AMT4 were already present and upregulated upon AM colonization...
June 30, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28652583/genome-wide-identification-and-characterization-of-genes-involved-in-carotenoid-metabolic-in-three-stages-of-grapevine-fruit-development
#13
Xiangpeng Leng, Peipei Wang, Chen Wang, Xudong Zhu, Xiaopeng Li, Hongyan Li, Qian Mu, Ao Li, Zhongjie Liu, Jinggui Fang
Carotenoids not only play indispensable roles in plant growth and development but also enhance nutritional value and health benefits for humans. In this study, total carotenoids progressively decreased during fruit ripening. Fifty-four genes involving in mevalonate (MVA), 2-C-methyl-D-erythritol 4-phosphate (MEP), carotenoid biosynthesis and catabolism pathway were identified. The expression levels of most of the carotenoid metabolism related genes kept changing during fruit ripening generating a metabolic flux toward carotenoid synthesis...
June 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28643882/the-history-and-current-status-of-glyphosate
#14
Stephen O Duke
Glyphosate is the only herbicide to target the enzyme 5-enolpyruvyl-3-shikimate phosphate synthase (EPSPS). It is a high use rate, non-selective herbicide that translocates primarily to metabolic sinks, killing meristematic tissues away from the application site. Its phloem-mobile properties and slow action in killing weeds allows the herbicide to move throughout the plant to kill all meristems, making it effective for perennial weed control. Since commercialization in 1974, its use has grown to dominate the herbicide market...
June 23, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28612271/overexpression-of-dnaj-like-chaperone-enhances-carotenoid-synthesis-in-chlamydomonas-reinhardtii
#15
Tateki Morikawa, Yusuke Uraguchi, Shohei Sanda, Satoshi Nakagawa, Shigeki Sawayama
Production of functional carotenoids using microalgae may facilitate the commercialization of anti-aging nutritional supplements. The green alga Chlamydomonas reinhardtii uses a non-mevalonate (MEP) pathway for isopentenyl diphosphate (IPP) synthesis. Two enzymes thought to play important roles in this MEP pathway to IPP synthesis are 1-deoxy-D-xylulose 5-phosphate synthase (DXS) and reductase (DXR). DnaJ-like chaperone (Orange protein) is thought to support phytoene synthase, a key enzyme in plant carotenoid synthesis...
June 13, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28594817/a-shifting-mutational-landscape-in-6-nutritional-states-stress-induced-mutagenesis-as-a-series-of-distinct-stress-input-mutation-output-relationships
#16
COMPARATIVE STUDY
Ram P Maharjan, Thomas Ferenci
Environmental stresses increase genetic variation in bacteria, plants, and human cancer cells. The linkage between various environments and mutational outcomes has not been systematically investigated, however. Here, we established the influence of nutritional stresses commonly found in the biosphere (carbon, phosphate, nitrogen, oxygen, or iron limitation) on both the rate and spectrum of mutations in Escherichia coli. We found that each limitation was associated with a remarkably distinct mutational profile...
June 2017: PLoS Biology
https://www.readbyqxmd.com/read/28554467/review-mitogen-activated-protein-kinases-in-nutritional-signaling-in-arabidopsis
#17
REVIEW
Camille Chardin, Sebastian T Schenk, Heribert Hirt, Jean Colcombet, Anne Krapp
Mitogen-Activated Protein Kinase (MAPK) cascades are functional modules widespread among eukaryotic organisms. In plants, these modules are encoded by large multigenic families and are involved in many biological processes ranging from stress responses to cellular differentiation and organ development. Furthermore, MAPK pathways are involved in the perception of environmental and physiological modifications. Interestingly, some MAPKs play a role in several signaling networks and could have an integrative function for the response of plants to their environment...
July 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28549373/production-of-a-potential-liquid-plant-bio-stimulant-by-immobilized-piriformospora-indica-in-repeated-batch-fermentation-process
#18
Nikolay Vassilev, Bettina Eichler-Löbermann, Elena Flor-Peregrin, Vanessa Martos, Antonia Reyes, Maria Vassileva
Piriformospora indica, a mycorrhizal-like fungus able to establish associations with roots of a wide range of plants, supporting plant nutrition and increasing plant resistance and tolerance to stress, was shown to solubilise phosphate applied in the form of animal bone char (HABO) in fermentation systems. The process of P solubilisation was caused most likely by proton extrusion and medium pH lowering. The fungal mycelium was successfully immobilized/retained in a polyurethane foam carrier. Further employment of the immobilized mycelium in repeated-batch fermentation process resulted in at least 5 cycles of P solubilization...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28523011/the-effects-of-herbicides-targeting-aromatic-and-branched-chain-amino-acid-biosynthesis-support-the-presence-of-functional-pathways-in-broomrape
#19
Evgenia Dor, Shmuel Galili, Evgeny Smirnov, Yael Hacham, Rachel Amir, Joseph Hershenhorn
It is not clear why herbicides targeting aromatic and branched-chain amino acid biosynthesis successfully control broomrapes-obligate parasitic plants that obtain all of their nutritional requirements, including amino acids, from the host. Our objective was to reveal the mode of action of imazapic and glyphosate in controlling the broomrape Phelipanche aegyptiaca and clarify if this obligatory parasite has its own machinery for the amino acids biosynthesis. P. aegyptiaca callus was studied to exclude the indirect influence of the herbicides on the parasite through the host plant...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28503185/phosphate-uptake-from-phytate-due-to-hyphae-mediated-phytase-activity-by-arbuscular-mycorrhizal-maize
#20
Xin-Xin Wang, Ellis Hoffland, Gu Feng, Thomas W Kuyper
Phytate is the most abundant form of soil organic phosphorus (P). Increased P nutrition of arbuscular mycorrhizal plants derived from phytate has been repeatedly reported. Earlier studies assessed acid phosphatase rather than phytase as an indication of mycorrhizal fungi-mediated phytate use. We investigated the effect of mycorrhizal hyphae-mediated phytase activity on P uptake by maize. Two maize (Zea mays L.) cultivars, non-inoculated or inoculated with the arbuscular mycorrhizal fungi Funneliformis mosseae or Claroideoglomus etunicatum, were grown for 45 days in two-compartment rhizoboxes, containing a root compartment and a hyphal compartment...
2017: Frontiers in Plant Science
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