keyword
MENU ▼
Read by QxMD icon Read
search

Plant nutrient

keyword
https://www.readbyqxmd.com/read/28340454/pea-cultivar-and-wheat-residues-affect-carbon-nitrogen-dynamics-in-pea-triticale-intercropping-a-microcosms-approach
#1
Antonella Scalise, Valentini A Pappa, Antonio Gelsomino, Robert M Rees
The underlying mechanisms by which legume cultivars contribute to nitrous oxide (N2O) generation are poorly understood. The aim of the present study was to explore the effects of two pea cultivars (Zero4 and Nitouche) intercropped with triticale, with or without wheat (Triticum aestivum) residues incorporation, on soil C and N dynamics, on bacterial community structure and their links with N2O emissions. Monocrops and bare soil (no plant) treatments were used as an additional control in order to account for the level of mineralisation between treatments...
March 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28338970/woody-plant-ecosystems-under-climate-change-and-air-pollution-response-consistencies-across-zonobiomes
#2
R Matyssek, A R Kozovits, G Wieser, J King, H Rennenberg
Forests store the largest terrestrial pools of carbon (C), helping to stabilize the global climate system, yet are threatened by climate change (CC) and associated air pollution (AP, highlighting ozone (O3) and nitrogen oxides (NOx)). We adopt the perspective that CC-AP drivers and physiological impacts are universal, resulting in consistent stress responses of forest ecosystems across zonobiomes. Evidence supporting this viewpoint is presented from the literature on ecosystem gross/net primary productivity and water cycling...
March 14, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338926/nitrogen-controlled-intra-and-interspecific-competition-between-populus-purdomii-and-salix-rehderiana-drive-primary-succession-in-the-gongga-mountain-glacier-retreat-area
#3
Mengya Song, Lei Yu, Yonglei Jiang, Yanbao Lei, Helena Korpelainen, Ülo Niinemets, Chunyang Li
In this study, intra- and interspecific competition were investigated in early successional Salix rehderiana Schneider and later-appearing Populus purdomii Rehder under non-fertilized (control) and nitrogen (N)-fertilized conditions in the Hailuogou glacier retreat area. Our aim was to discover whether N is a key factor in plant-plant competition and whether N drives the primary succession process in a glacier retreat area. We analyzed differences in responses to intra- and interspecific competition and N fertilization between P...
March 3, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28337762/molecular-interaction-between-pho2-and-gi-in-rice
#4
Shuai Li, Yinghui Ying, David Secco, Chuang Wang, Reena Narsai, James Whelan, Huixia Shou
Plants are often confronted to nutrient limiting conditions, such as inorganic phosphate (Pi) deficiency, resulting in a reduction in growth and yield. PHO2, encoding a ubiquitin-conjugating E2 enzyme, is a central component of the Pi-starvation response signaling pathway. A yeast-two-hybrid screen using Oryza sativa (rice) PHO2 as bait, revealed an interaction between OsPHO2 and OsGIGANTEA, a key regulator of flowering time, which was confirmed using bimolecular flourescenec complementation (BiFC). Characterization of rice Osgi and Ospho2 mutants revealed that they displayed several similar phenotypic features supporting a physiological role for this interaction...
March 24, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28336973/microbial-community-composition-is-related-to-soil-biological-and-chemical-properties-and-bacterial-wilt-outbreak
#5
Rui Wang, Hongchun Zhang, Liguang Sun, Gaofu Qi, Shu Chen, Xiuyun Zhao
Soil microbes play important roles in plant growth and health. Little is known about the differences of soil microbes between healthy and bacterial wilt infected soils with Ralstonia solanacearum. By Illumina-MiSeq sequencing of 16S rRNA and 18S rRNA gene amplicons, we found the soil microbial composition and diversity were distinct between healthy and bacterial wilt infected soils. Soil microbial community varied at different plant growth stages due to changes of root exudates composition and soil pH. Healthy soils exhibited higher microbial diversity than the bacterial wilt infected soils...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336334/agricultural-utilization-of-biosolids-a-review-on-potential-effects-on-soil-and-plant-grown
#6
REVIEW
Bhavisha Sharma, Abhijit Sarkar, Pooja Singh, Rajeev Pratap Singh
Environmental and economic implications linked with the proper ecofriendly disposal of modern day wastes, has made it essential to come up with alternative waste management practices that reduce the environmental pressures resulting from unwise disposal of such wastes. Urban wastes like biosolids are loaded with essential plant nutrients. In this view, agricultural use of biosolids would enable recycling of these nutrients and could be a sustainable approach towards management of this hugely generated waste...
March 20, 2017: Waste Management
https://www.readbyqxmd.com/read/28334410/pretty-picky-for-a-generalist-impacts-of-toxicity-and-nutritional-quality-on-mantid-prey-processing
#7
Jamie L Rafter, Justin F Vendettuoli, Liahna Gonda-King, Daniel Niesen, Navindra P Seeram, Chad M Rigsby, Evan L Preisser
Prey have evolved a number of defenses against predation, and predators have developed means of countering these protective measures. Although caterpillars of the monarch butterfly, Danaus plexippus L., are defended by cardenolides sequestered from their host plants, the Chinese mantid Tenodera sinensis Saussure guts the caterpillar before consuming the rest of the body. We hypothesized that this gutting behavior might be driven by the heterogeneous quality of prey tissue with respect to toxicity and/or nutrients...
March 20, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28334190/limited-impact-of-a-fall-seeded-spring-terminated-rye-cover-crop-on-beneficial-arthropods
#8
Mike W Dunbar, Aaron J Gassmann, Matthew E O'Neal
Cover crops are beneficial to agroecosystems because they decrease soil erosion and nutrient loss while increasing within-field plant diversity. Greater plant diversity within cropping systems can positively affect beneficial arthropod communities. We hypothesized that increasing plant diversity within annually rotated corn and soybean with the addition of a rye cover crop would positively affect the beneficial ground and canopy-dwelling communities compared with rotated corn and soybean grown without a cover crop...
March 3, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28334145/combined-effects-of-thinning-and-decline-on-fine-root-dynamics-in-a-quercus-robur-l-forest-adjoining-the-italian-pre-alps
#9
E Mosca, L Montecchio, G Barion, C Dal Cortivo, T Vamerali
Aims: Oak decline is a complex phenomenon, characterized by symptoms of canopy transparency, bark cracks and root biomass reduction. Root health status is one of the first stress indicators, and root turnover is a key process in plant adaptation to unfavourable conditions. In this study, the combined effects of decline and thinning were evaluated on fine root dynamics in an oak forest adjoining the Italian Pre-Alps by comparison of acute declining trees with non-declining trees, both with and without thinning treatment of surrounding trees...
February 28, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28334144/the-effects-of-plant-nutritional-strategy-on-soil-microbial-denitrification-activity-through-rhizosphere-primary-metabolites
#10
Julien P Guyonnet, Florian Vautrin, Guillaume Meiffren, Clément Labois, Amélie A M Cantarel, Serge Michalet, Gilles Comte, Feth El Zahar Haichar
The aim of this study was to determine (i) whether plant nutritional strategy affects the composition of primary metabolites exuded into the rhizosphere and (ii) their impact on denitrification activity in soil. We answer this question by analysing primary metabolite contents extracted from the root-adhering soil (RAS) and the roots of three grasses representing different nutrient management strategies: conservative (Festuca paniculata), intermediate (Bromus erectus) and exploitative (Dactylis glomerata). We also investigated the impact of primary metabolites on soil microbial denitrification enzyme activity (DEA) without carbon addition, comparing for each plant RAS and bulk soils...
February 18, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28333985/the-role-of-above-ground-competition-and-nitrogen-vs-phosphorus-enrichment-in-seedling-survival-of-common-european-plant-species-of-semi-natural-grasslands
#11
Tobias Ceulemans, Eva Hulsmans, Sigi Berwaers, Kasper Van Acker, Olivier Honnay
Anthropogenic activities have severely altered fluxes of nitrogen and phosphorus in ecosystems worldwide. In grasslands, subsequent negative effects are commonly attributed to competitive exclusion of plant species following increased above-ground biomass production. However, some studies have shown that this does not fully account for nutrient enrichment effects, questioning whether lowering competition by reducing grassland productivity through mowing or herbivory can mitigate the environmental impact of nutrient pollution...
2017: PloS One
https://www.readbyqxmd.com/read/28333395/small-molecules-belowground-the-role-of-specialized-metabolites-in-the-rhizosphere
#12
Hassan Massalha, Elisa Korenblum, Dorothea Tholl, Asaph Aharoni
Soil communities are diverse taxonomically and functionally. This ecosystem experiences highly complex networks of interactions, but may also present functionally independent entities. Plant roots, a metabolically active hotspot in the soil, take an essential part in belowground interactions. While plants are known to release an extremely high portion of the fixated carbon to the soil, less is known about the composition and role of C-containing compounds in the rhizosphere, in particular those involved in chemical communication...
March 23, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28332086/reducing-nitrogen-losses-through-ammonia-volatilization-and-surface-runoff-to-improve-apparent-nitrogen-recovery-of-double-cropping-of-late-rice-using-controlled-release-urea
#13
Pengfei Li, Jianwei Lu, Wenfeng Hou, Yonghui Pan, Yang Wang, Muhammad Rizwan Khan, Tao Ren, Rihuan Cong, Xiaokun Li
Controlled release fertilizer can reduce nitrogen losses to the environment while increasing grain yield and improving apparent nitrogen recovery (ANR) of rice. However, few studies have evaluated the comparative efficacy of different polymer-coated urea products on nitrogen (N) losses, ANR, and N uptake of rice. A 2-year field experiment was conducted to compare the effects of three different types of polymer-coated urea fertilizer on nitrogen losses through NH3 volatilization and surface runoff to the environment, ANR, grain yield, and N uptake as compared to conventional urea of rice...
March 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28331950/how-do-elevated-co2-and-nitrogen-addition-affect-functional-microbial-community-involved-in-greenhouse-gas-flux-in-salt-marsh-system
#14
Seung-Hoon Lee, Patrick J Megonigal, Hojeong Kang
Salt marshes are unique ecosystem of which a microbial community is expected to be affected by global climate change. In this study, by using T-RFLP analysis, quantitative PCR, and pyrosequencing, we comprehensively analyzed the microbial community structure responding to elevated CO2 (eCO2) and N addition in a salt marsh ecosystem subjected to CO2 manipulation and N addition for about 3 years. We focused on the genes of microbes relevant to N-cycling (denitrification and nitrification), CH4-flux (methanogens and methanotrophs), and S-cycling (sulfate reduction) considering that they are key functional groups involved in the nutrient cycle of salt marsh system...
March 22, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28331546/increasing-phosphorus-recovery-from-dewatering-centrate-in-microbial-electrolysis-cells
#15
Pengyi Yuan, Younggy Kim
BACKGROUND: Microbial electrolysis cells (MECs) use bioelectrochemical reactions to remove organic contaminants at the bioanode and produce hydrogen gas at the cathode. High local pH conditions near the cathode can also be utilized to produce struvite from nutrient-rich wastewater. This beneficial aspect was investigated using lab-scale MECs fed with dewatering centrate collected at a local wastewater treatment plant. The main objective was to improve phosphorus recovery by examining various cathode configurations and electric current conditions...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28331178/habitat-filtering-and-exclusion-of-weak-competitors-jointly-explain-fern-species-assemblage-along-a-light-and-water-gradient
#16
Hui Zhang, Shidan Zhu, Robert John, Ronghua Li, Hui Liu, Qing Ye
Fern species are an important component of the diversity of forest plant communities, but very little is known about how fern communities assemble in different environments. In this study, we use multiple trait-based tests to examine the relationships between several key eco-physiological traits which are direct indicators of shade and drought tolerance, and the abundance of fern species in pine forest (PF), pine and mixed broad leaf forest (PMBF) and matured broad leaf forest (MBF) in southern China. These forests are characterized by decreasing light but increasing water availability during succession, and the fern communities correspondingly differ in species composition...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28330920/immanent-conditions-determine-imminent-collapses-nutrient-regimes-define-the-resilience-of-macroalgal-communities
#17
Jordi Boada, Rohan Arthur, David Alonso, Jordi F Pagès, Albert Pessarrodona, Silvia Oliva, Giulia Ceccherelli, Luigi Piazzi, Javier Romero, Teresa Alcoverro
Predicting where state-changing thresholds lie can be inherently complex in ecosystems characterized by nonlinear dynamics. Unpacking the mechanisms underlying these transitions can help considerably reduce this unpredictability. We used empirical observations, field and laboratory experiments, and mathematical models to examine how differences in nutrient regimes mediate the capacity of macrophyte communities to sustain sea urchin grazing. In relatively nutrient-rich conditions, macrophyte systems were more resilient to grazing, shifting to barrens beyond 1 800 g m(-2) (urchin biomass), more than twice the threshold of nutrient-poor conditions...
March 29, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28330174/salicornia-evaluating-the-halophytic-extremophile-as-a-food-and-a-pharmaceutical-candidate
#18
REVIEW
Seema Patel
Food insecurity is a major issue in current scenario where a large section of mankind is at risk of insufficient diet. As food productivity has its limits, the prospecting of unutilized or underutilized flora as food candidates is collectively recognized as a sustainable option. In the past decade, a number of obscure plants have been identified to be rich in dietary components and deemed fit for integration into the food platter. This review discusses a candidate Salicornia, belonging to family Amaranthaceae...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28327966/de-novo-transcriptome-assemblies-of-four-xylem-sap-feeding-insects
#19
Erica E Tassone, Charles C Cowden, S J Castle
Background: Spittle bugs and sharpshooters are well-known xylem sap-feeding insects and vectors of the phytopathogenic bacterium Xylella fastidiosa (Wells), a causal agent of Pierce's disease of grapevines and other crop diseases. Specialized feeding on nutrient-deficient xylem sap is relatively rare among insect herbivores, and only limited genomic and transcriptomic information has been generated for xylem-sap feeders. To develop a more comprehensive understanding of biochemical adaptations and symbiotic relationships that support survival on a nutritionally austere dietary source, transcriptome assemblies for three sharpshooter species and one spittlebug species were produced...
February 24, 2017: GigaScience
https://www.readbyqxmd.com/read/28326066/beneficial-microorganisms-for-corals-bmc-proposed-mechanisms-for-coral-health-and-resilience
#20
REVIEW
Raquel S Peixoto, Phillipe M Rosado, Deborah Catharine de Assis Leite, Alexandre S Rosado, David G Bourne
The symbiotic association between the coral animal and its endosymbiotic dinoflagellate partner Symbiodinium is central to the success of corals. However, an array of other microorganisms associated with coral (i.e., Bacteria, Archaea, Fungi, and viruses) have a complex and intricate role in maintaining homeostasis between corals and Symbiodinium. Corals are sensitive to shifts in the surrounding environmental conditions. One of the most widely reported responses of coral to stressful environmental conditions is bleaching...
2017: Frontiers in Microbiology
keyword
keyword
56881
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"