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Phosphate nutrition plant

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https://www.readbyqxmd.com/read/29202269/opportunities-and-challenges-in-the-use-of-mineral-nutrition-for-minimizing-arsenic-toxicity-and-accumulation-in-rice-a-critical-review
#1
REVIEW
Saifullah, Saad Dahlawi, Asif Naeem, Muhammad Iqbal, Muhammad Ansar Farooq, Sadia Bibi, Zed Rengel
Growing rice on arsenic (As)-contaminated soil or irrigating with As-contaminated water leads to significant accumulation of As in grains. Moreover, rice accumulates more As into grains than other cereal crops. Thus, rice consumption has been identified as a major route of human exposure to As in many countries. Inorganic As species are carcinogenic and could pose a considerable health risk to humans even at low dietary concentration. Genotypic variation and concentration of nutrients such as iron, manganese, phosphate, sulfur and silicon are the two main factors that affect As accumulation in rice grains...
December 1, 2017: Chemosphere
https://www.readbyqxmd.com/read/29200724/bioassay-guided-isolation-of-neuroprotective-fatty-acids-from-nigella-sativa-against-1-methyl-4-phenylpyridinium-induced-neurotoxicity
#2
Leila Hosseinzadeh, Hoda Monaghash, Farahnaz Ahmadi, Nastaran Ghiasvand, Yalda Shokoohinia
Objective: Parkinson's disease, a slowly progressive neurological disease, is associated with degeneration of the basal ganglia of the brain and a deficiency of the neurotransmitter dopamine. The main aspects of researches are the protection of normal neurons against degeneration. Fatty acids (FAs), the key structural elements of dietary lipids, are carboxylic straight chains and notable parameters in nutritional and industrial usefulness of a plant. Materials and Methods: Black cumin, a popular anti-inflammatory and antioxidant food seasoning, contains nonpolar constituents such as FAs which were extracted using hexane...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29193665/provitamin-a-biofortification-of-cassava-enhances-shelf-life-but-reduces-dry-matter-content-of-storage-roots-due-to-altered-carbon-partitioning-into-starch
#3
Getu Beyene, Felix R Solomon, Raj Deepika Chauhan, Eliana Gaitán-Solis, Narayanan Narayanan, Jackson Gehan, Dimuth Siritunga, Robyn L Stevens, John Jifon, Joyce Van Eck, Edward Linsler, Malia Gehan, Muhammad Ilyas, Martin Fregene, Richard T Sayre, Paul Anderson, Nigel J Taylor, Edgar B Cahoon
Storage roots of cassava, a major subsistence crop of sub-Saharan Africa, are calorie-rich but deficient in essential micronutrients, including provitamin A β-carotene. In this study, β-carotene concentrations in cassava storage roots were enhanced by co-expression of transgenes for deoxy-D-xylulose-5-phosphate synthase (DXS) and bacterial phytoene synthase (crtB), mediated by the patatin type-1 promoter. Storage roots harvested from field-grown plants accumulated carotenoids to ≤50 μg/g DW, 15- to 20-fold increases relative to roots from non-transgenic plants...
November 28, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/29167981/transcriptional-induction-of-two-phosphate-transporter-1-genes-and-enhanced-root-branching-in-grape-plants-inoculated-with-funneliformis-mosseae
#4
Laure Valat, Laurence Deglène-Benbrahim, Melha Kendel, Réjane Hussenet, Christine Le Jeune, Paul Schellenbaum, Pascale Maillot
We investigated the effects of the arbuscular mycorrhizal fungus (AMF) Funneliformis mosseae on the growth and root architecture of plantlets of the grape rootstock 41B MGt under hydroponic conditions, and analyzed the concomitant expression of putative mycorrhizal-specific phosphate transporter 1 (PHT1) genes. In vitro propagated plantlets were acclimatized to ex vitro culture before AMF inoculation and grown under low phosphate (Pi) nutrition conditions during 6 weeks. Grape roots could be efficiently colonized by F...
November 22, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/29165807/arabidopsis-thaliana-plants-challenged-with-uranium-reveal-new-insights-into-iron-and-phosphate-homeostasis
#5
Serge Berthet, Florent Villiers, Claude Alban, Nelson B C Serre, Jacqueline Martin-Laffon, Sylvie Figuet, Anne-Marie Boisson, Richard Bligny, Marcel Kuntz, Giovanni Finazzi, Stéphane Ravanel, Jacques Bourguignon
Uranium (U) is a naturally occurring radionuclide that is toxic to plants. It is known to interfere with phosphate nutrition and to modify the expression of iron (Fe)-responsive genes. The transporters involved in the uptake of U from the environment are unknown. Here, we addressed whether IRT1, a high-affinity Fe(2+) transporter, could contribute to U uptake in Arabidopsis thaliana. An irt1 null mutant was grown hydroponically in different conditions of Fe bioavailability and phosphate supply, and challenged with uranyl...
November 22, 2017: New Phytologist
https://www.readbyqxmd.com/read/29148171/identification-and-expression-profiling-of-pht1-phosphate-transporters-in-wheat-in-controlled-environments-and-in-the-field
#6
A Grün, P Buchner, M R Broadley, M J Hawkesford
Phosphorus (P) is an important macronutrient with critical functions in plants. Phosphate (Pi) transporters which mediate Pi acquisition and Pi translocation within the plant are key factors in Pi deficiency responses. However, their relevance for adaptation to long-term Pi limitation under agronomic conditions, particularly in wheat, remains unknown. Here, we describe the identification of the complete Pi transporter gene family (Pht1) in wheat (Triticum aestivum). Gene expression profiles were compared for hydroponic and field-grown plant tissues of wheat at multiple developmental stages...
November 17, 2017: Plant Biology
https://www.readbyqxmd.com/read/29144540/biosynthetic-energy-cost-of-potentially-highly-expressed-proteins-vary-with-niche-in-selected-actinobacteria
#7
Indrani Sarkar, Louis S Tisa, Maher Gtari, Arnab Sen
Amino acid and protein biosynthesis requires a number of high energy phosphate bonds and includes a dual energy cost for the synthesis of chemical intermediates during the fueling reactions and the conversion of precursor molecules to final products. One popular hypothesis is that the proteins encoded by putative highly expressed genes (hence called PHXPs) generally utilize low energy consuming amino acids to reduce the biosynthetic cost of the essential proteins. In our study, we found that this idea was not supported in the case of actinobacteria...
November 16, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/29125620/metabolite-profiling-of-peppers-of-various-colors-reveals-relationships-between-tocopherol-carotenoid-and-phytosterol-content
#8
Tae Jin Kim, Jaehyuk Choi, Kil Won Kim, Soon Kil Ahn, Sun-Hwa Ha, Yongsoo Choi, Nam Il Park, Jae Kwang Kim
Peppers are widely consumed in Korea; the varietal development of peppers with increased content of beneficial plant metabolites is, therefore, of considerable interest. This requires a comprehensive understanding of the metabolic profile of pepper plants and the factors affecting this profile. To this end, we determined the content of various metabolites, such as hydrophilic and lipophilic compounds, phenolic acids, carotenoids, and capsaicinoids in peppers of various colors (green, red, pale green, and violet peppers) and in a high-pungency (green) pepper...
November 10, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29110555/oxidative-stress-or-redox-signalling-new-insights-into-the-effects-of-a-proprietary-multifunctional-botanical-dietary-supplement
#9
Boris V Nemzer, Christoph Centner, Denise Zdzieblik, Bruno Fink, John M Hunter, Daniel König
Recent interest has focused on maintenance of healthy levels of redox signalling and the related oxidants; these parameters are crucial for providing us with concrete nutritional targets that may help us to better understand and maintain "optimal health". Following the above hypothesis, we performed a pilot double-blind, crossover, placebo-controlled, single dose study to measure the dose-dependent effects of a proprietary plant-based dietary supplement labelled here as S7 (SPECTRA7), related to how it affected the cellular metabolic index (CMI) in healthy human participants (n = 8)...
November 7, 2017: Free Radical Research
https://www.readbyqxmd.com/read/29109915/mechanisms-of-oat-avena-sativa-l-acclimation-to-phosphate-deficiency
#10
Ewa Żebrowska, Marta Milewska, Iwona Ciereszko
Background: Deficiency of available forms of phosphorus is common in most soils and causes reduction of crop plants growth and yield. Recently, model plants responses to phosphate (Pi) deficiency have been intensively studied. However, acclimation mechanisms of cereals like oat (Avena sativa L.), to low Pi stress remains not fully understood. Oat plants have been usually cultured on poor soils, with a low nutrient content, but their responses to such conditions are not well known, therefore the main goal of the study was to investigate the mechanisms that enable oat plants to grow under low Pi conditions...
2017: PeerJ
https://www.readbyqxmd.com/read/29083039/changes-in-the-allocation-of-endogenous-strigolactone-improve-plant-biomass-production-on-phosphate-poor-soils
#11
Guowei Liu, Johannes Pfeifer, Rita de Brito Francisco, Aurelia Emonet, Marina Stirnemann, Christian Gübeli, Olivier Hutter, Joëlle Sasse, Christian Mattheyer, Ernst Stelzer, Achim Walter, Enrico Martinoia, Lorenzo Borghi
Strigolactones (SLs) are carotenoid-derived phytohormones shaping plant architecture and inducing the symbiosis with endomycorrhizal fungi. In Petunia hybrida, SL transport within the plant and towards the rhizosphere is driven by the ABCG-class protein PDR1. PDR1 expression is regulated by phytohormones and by the soil phosphate abundance, and thus SL transport integrates plant development with nutrient conditions. We overexpressed PDR1 (PDR1 OE) to investigate whether increased endogenous SL transport is sufficient to improve plant nutrition and productivity...
October 30, 2017: New Phytologist
https://www.readbyqxmd.com/read/29079927/characterization-and-potential-of-plant-growth-promoting-rhizobacteria-isolated-from-native-andean-crops
#12
Katty Ogata-Gutiérrez, Carolina Chumpitaz-Segovia, Jesus Lirio-Paredes, Mariella M Finetti-Sialer, Doris Zúñiga-Dávila
Bacteria isolated from soil and rhizosphere samples collected in Peru from Andean crops were tested in vitro and in vivo to determine their potential as plant growth promoters and their ability to induce systemic resistance to Alternaria alternata in tomato plants. The isolates were identified by sequencing their 16S ribosomal RNA gene. Test for phosphate solubilization, and indolacetic acid were also carried out, together with in vitro antagonism assays in dual cultures towards the plant pathogens Fusarium solani, A...
October 27, 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/29077948/phosphorus-nutrition-of-populus-%C3%A3-canescens-reflects-adaptation-to-high-p-availability-in-the-soil
#13
Florian Netzer, Carsten W Mueller, Ursula Scheerer, Jörg Grüner, Ingrid Kögel-Knabner, Cornelia Herschbach, Heinz Rennenberg
Phosphorus (P) constitutes one of five macronutrients essential for plant growth and development due to the central function of phosphate in energy metabolism, inheritance and metabolic control. In many ecosystems, plant available soil-P gets limited by soil aging. Hence, plants have developed adaptation strategies to cope with such limitation by an efficient plant and ecosystem internal P-cycling during annual growth. The natural floodplain habitat of fast-growing Populus × canescens is characterized by high soil-P availability...
October 25, 2017: Tree Physiology
https://www.readbyqxmd.com/read/29061907/deubiquitllating-enzyme-otu5-contributes-to-dna-methylation-patterns-and-is-critical-for-phosphate-nutrition-signals
#14
Ming-Ren Yen, Der-Fen Suen, Fei-Man Hsu, Yi-Hsiu Tsai, Hongyong Fu, Wolfgang Schmidt, Pao-Yang Chen
Phosphate (Pi) starvation induces a suite of adaptive responses aimed at recalibrating cellular Pi homeostasis. Plants harboring a mutation in OVARIAN TUMOR DOMAIN-CONTAINING DEUBIQUITILATING ENZYME5 (OTU5) showed altered DNA methylation of root hair-related genes and altered Pi-responsive root traits. Unlike the wild type, homozygous otu5 mutants did not respond to Pi starvation by increased lateral root formation and increased root hair length, but formed very short root hairs when grown on low Pi media. Under Pi-replete conditions, otu5 plants developed more root hairs than the wild type due to attenuated primary root growth, a phenotype which resembled that of Pi-deficient plants...
October 23, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29045000/characterization-of-the-soybean-gmalmt-family-genes-and-the-function-of-gmalmt5-in-response-to-phosphate-starvation
#15
Wenting Peng, Weiwei Wu, Junchu Peng, Jiaojiao Li, Yan Lin, Yanan Wang, Jiang Tian, Lili Sun, Cuiyue Liang, Hong Liao
A potential mechanism to enhance utilization of sparingly soluble forms of phosphorus (P) is the root secretion of malate, which is mainly mediated by the ALMT gene family in plants. In this study, a total of 34 GmALMT genes were identified in the soybean genome. Expression patterns diverged considerably among GmALMTs in response to phosphate (Pi) starvation in leaves, roots and flowers, with expression altered by P availability in 26 of the 34 GmALMTs. One root-specific GmALMT whose expression was significantly enhanced by Pi-starvation, GmALMT5, was studied in more detail to determine its possible role in soybean P nutrition...
October 17, 2017: Journal of Integrative Plant Biology
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
#16
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
#17
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
#18
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
#19
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
#20
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
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