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Phosphate nutrition plant

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https://www.readbyqxmd.com/read/28802165/the-world-according-to-garp-transcription-factors
#1
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...
August 10, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28782719/nutrient-exchange-and-regulation-in-arbuscular-mycorrhizal-symbiosis
#2
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, and 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...
August 3, 2017: Molecular Plant
https://www.readbyqxmd.com/read/28765275/proline-accumulation-is-regulated-by-transcription-factors-associated-with-phosphate-starvation
#3
Dávid Aleksza, Gábor V Horváth, Györgyi Sándor, László Szabados
Proline accumulation in plants is a well-documented physiological response to osmotic stress caused by drought or salinity. In Arabidopsis thaliana the stress and ABA-induced Δ1-PYRROLINE-5-CARBOXYLATE SYNTHETASE 1 (P5CS1) gene was previously shown to control proline biosynthesis in such adverse conditions. To identify regulatory factors which control the transcription of P5CS1, yeast one hybrid (Y1H) screens were performed with a genomic fragment of P5CS1, containing 1.2 kB promoter and 0.8 kB transcribed regions...
August 1, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28725961/the-plasma-membrane-proteome-of-medicago-truncatula-roots-as-modified-by-arbuscular-mycorrhizal-symbiosis
#4
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
#5
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 plant's root compartment and fungi. They provide nutritional benefit (mostly inorganic phosphate, Pi) leading to improved growth, and non-nutritional 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...
July 11, 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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
https://www.readbyqxmd.com/read/28446916/oil-accumulation-in-transgenic-potato-tubers-alters-starch-quality-and-nutritional-profile
#16
Madeline Mitchell, Jenifer Pritchard, Shoko Okada, Oscar Larroque, Dina Yulia, Filomena Pettolino, Nicolas Szydlowski, Surinder Singh, Qing Liu, Jean-Philippe Ral
Plant storage compounds such as starch and lipids are important for human and animal nutrition as well as industry. There is interest in diverting some of the carbon stored in starch-rich organs (leaves, tubers, and cereal grains) into lipids in order to improve the energy density or nutritional properties of crops as well as providing new sources of feedstocks for food and manufacturing. Previously, we generated transgenic potato plants that accumulate up to 3.3% triacylglycerol (TAG) by dry weight in the tubers, which also led to changes in starch content, starch granule morphology and soluble sugar content...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28399400/phr1-balances-between-nutrition-and-immunity-in-plants
#17
COMMENT
Hans Motte, Tom Beeckman
Plants assemble beneficial root-associated microbiomes to support growth, especially in nutrient-poor conditions. To do so, however, plants have to suppress their immune system. Reporting in Nature, Castrillo et al. (2017) identified PHOSPHATE STARVATION RESPONSE1 (PHR1) as a central regulator in this balance between nutrient stress response and immune regulation.
April 10, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28394304/the-diet-and-haemodialysis-dyad-three-eras-four-open-questions-and-four-paradoxes-a-narrative-review-towards-a-personalized-patient-centered-approach
#18
REVIEW
Giorgina Barbara Piccoli, Maria Rita Moio, Antioco Fois, Andreea Sofronie, Lurlinys Gendrot, Gianfranca Cabiddu, Claudia D'Alessandro, Adamasco Cupisti
The history of dialysis and diet can be viewed as a series of battles waged against potential threats to patients' lives. In the early years of dialysis, potassium was identified as "the killer", and the lists patients were given of forbidden foods included most plant-derived nourishment. As soon as dialysis became more efficient and survival increased, hyperphosphatemia, was identified as the enemy, generating an even longer list of banned aliments. Conversely, the "third era" finds us combating protein-energy wasting...
April 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28330134/phytases-from-enterobacter-and-serratia-species-with-desirable-characteristics-for-food-and-feed-applications
#19
Harpreet Kaur Kalsi, Rajveer Singh, Harcharan Singh Dhaliwal, Vinod Kumar
Phytases are enzymes of great industrial importance with wide range of applications in animal and human nutrition. These catalyze the hydrolysis of phosphomonoester bonds in phytate, thereby releasing lower forms of myo-inositol phosphates and inorganic phosphate. Addition of phytase to plant-based foods can improve its nutritional value and increase mineral bioavailability by decreasing nutritional effect of phytate. In the present investigation, 43 phytase positive bacteria on PSM plates were isolated from different sources and characterized for phytase activity...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28318693/the-influence-of-dual-substrate-layer-extensive-green-roofs-on-rainwater-runoff-quantity-and-quality
#20
Xiaoou Wang, Yimei Tian, Xinhua Zhao
This study investigates the ability of dual-substrate-layer extensive green roofs to retain rainwater and reduce pollutant leaching. The substrates in dual-substrate-layer green roofs consist of an upper organic nutrition layer for plant growth and a lower inorganic adsorption layer for water retention and pollutant reduction. One traditional single-substrate-layer extensive green roof was built for comparison with dual-substrate-layer green roofs. During the experimental period, dual-substrate-layer green roofs supported better natural vegetation growth, with coverage exceeding 90%, while the coverage in single-substrate-layer green roof was over 80%...
March 16, 2017: Science of the Total Environment
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