PubAg

Main content area

You searched for: Subject "nutrient uptake" Remove constraint Subject: "nutrient uptake"
Start Over

Search

8,631  Search Results

« Previous | 1 - 20 of 8,631 |
Number of results to display per page

Search Results

1. Nutrient affinity, half‐saturation constants and the cost of toxin production in dinoflagellates

Author:
Kiørboe, Thomas; Andersen, Ken H.
Source:
Ecology letters 2019 v.22 no.3 pp. 558-560
ISSN:
1461-023X
Subject:
nutrient uptake,   etc   ; Miozoa; enzyme kinetics; toxins;     Show all 4 Subjects
Abstract:
... The two parameters of the Michaelis–Menten model, the maximum uptake rate and the half‐saturation constant, are not stochastically independent, and the half‐saturation constant is not a measure of nutrient affinity, as commonly assumed. Failure to realise their interdependence and mechanistic interpretation may lead to the emergence of false trade‐offs. ...
DOI:
10.1111/ele.13208

2. Correction to: Discordance between diet analysis and dietary macronutrient content in four nominally herbivorous fishes from the Southwestern Atlantic

Author:
Mendes, Thiago C.; Ferreira, Carlos Eduardo L.; Clements, Kendall D.
Source:
Marine biology 2019 v.166 no.1 pp. 2
ISSN:
0025-3162
Subject:
nutrient uptake,   etc   ; diet; herbivorous fish; nutrients; Atlantic Ocean;     Show all 5 Subjects
Abstract:
... The authors would like to correct the error in the publication of the original article. The corrected details are given below for your reading. ...
DOI:
10.1007/s00227-018-3448-2

3. Correction to: Heavy metal and nutrient uptake in plants colonizing post-flotation copper tailings

Author:
Kasowska, Dorota; Gediga, Krzysztof; Spiak, Zofia
Source:
Environmental science and pollution research international 2018 v.25 no.1 pp. 836-837
ISSN:
0944-1344
Subject:
nutrient uptake,   etc   ; copper; heavy metals; mine tailings;     Show all 4 Subjects
Abstract:
... The correct presentation of Table 4 is shown in this paper. ...
DOI:
10.1007/s11356-017-0766-8
PubMed:
29185217
PubMed Central:
PMC5756555

4. Spectral characteristics of copper-stressed vegetation leaves and further understanding of the copper stress vegetation index

Author:
Zhang, Chengye; Ren, Huazhong; Dai, Xiujuan; Qin, Qiming; Li, Jun; Zhang, Tianyuan; Sun, Yuanheng
Source:
International journal of remote sensing 2019 v.40 no.12 pp. 4473-4488
ISSN:
1366-5901
Subject:
nutrient uptake,   etc   ; absorption; chlorophyll; copper; leaves; reflectance; remote sensing; spectral analysis; vegetation index; vegetation types; wavelengths;     Show all 11 Subjects
Abstract:
... This study analysed the changing pattern of the spectral features of copper-stressed leaves for several vegetation types, and explored the mechanism of the Copper Stress Vegetation Index (CSVI). First, the change of seven key spectral features (Green Peak, Red Valley, Red Shoulder, NIR (Near Infrared) Reflectance Platform, Blue-Edge, Yellow-Edge, and Red-Edge) with copper stress level from low to ...
DOI:
10.1080/01431161.2018.1563842

5. Effect of organic carbon to nitrogen ratio in wastewater on growth, nutrient uptake and lipid accumulation of a mixotrophic microalgae Chlorella sp.

Author:
Gao, Feng; Yang, Hong-Li; Li, Chen; Peng, Yuan-Yuan; Lu, Miao-Miao; Jin, Wei-Hong; Bao, Jing-Jiao; Guo, Yuan-Ming
Source:
Bioresource technology 2019 v.282 pp. 118-124
ISSN:
0960-8524
Subject:
nutrient uptake,   etc   ; Chlorella; biodiesel; biomass; carbon nitrogen ratio; fatty acids; microalgae; nitrogen; organic carbon; wastewater;     Show all 10 Subjects
Abstract:
... This study investigated the biomass/lipid production, nutrient removal and fatty acid composition of an isolated mixotrophic microalga (Chlorella sp. G-9) cultured in simulated wastewater with different TOC/TN ratio. As the TOC/TN ratio of wastewater increased from 0 to 24, the growth rate of Chlorella sp. G-9 increased gradually, but did not increase further at 30. Nutrient removal was related to ...
DOI:
10.1016/j.biortech.2019.03.011

6. Effect of particle size, die rotary speed and amount of urea on physical properties of the produced pellet

Author:
Amiri, H.; Kianmehr, M. H.; Arabhosseini, A.
Source:
International journal of environmental science and technology 2019 v.16 no.4 pp. 2059-2068
ISSN:
1735-1472
Subject:
nutrient uptake,   etc   ; absorption; composts; durability; energy; leaching; mixing; nitrogen; particle size; pellets; urea; urea fertilizers;     Show all 12 Subjects
Abstract:
... Provided pellet by mixing of urea and compost is a kind of nitrogenous fertilizer with gradual release that reduces leaching losses and increases gradual absorption of nitrogen during the growing long season. In this study, the characteristics of the produced pellet such as durability, strength and moisture absorption were examined at two density levels (low and high), three ratio levels of compos ...
DOI:
10.1007/s13762-017-1627-1

7. Over-expression of OsPT2 under a rice root specific promoter Os03g01700

Author:
Li, Yuanya; Li, Caixia; Cheng, Lizhong; Yu, Shuangshuang; Shen, Chenjia; Pan, Yue
Source:
Plant physiology and biochemistry 2019 v.136 pp. 52-57
ISSN:
0981-9428
Subject:
nutrient uptake,   etc   ; breeding; gene expression; genetic transformation; phosphorus; regulatory sequences; rice; seedlings; shoots; toxicity;     Show all 10 Subjects
Abstract:
... Identification of root-specific promoters is a good method to drive root-specific gene expression for nutrient uptake. Constitutive over-expression of OsPT2 may have negative effects on the growth of rice seedlings under high Pi condition. Thus, characterization and utilization of root-specific promoters are critical for genetic breeding. Here, a root-specific promoter (Os03g01700) with a number o ...
DOI:
10.1016/j.plaphy.2019.01.009

8. Establishment and Use of Human Mouth Epidermal Carcinoma (KB) Cells Overexpressing P-Glycoprotein To Characterize Structure Requirements for Flavonoids Transported by the Efflux Transporter

Author:
Fang, Yajing; Xia, Mengmeng; Liang, Fuqiang; Cao, Weiwei; Pan, Siyi; Xu, Xiaoyun
Source:
Journal of agricultural and food chemistry 2019 v.67 no.8 pp. 2350-2360
ISSN:
1520-5118
Subject:
nutrient uptake,   etc   ; P-glycoproteins; carcinoma; flavonoids; human cell lines; in vitro studies; models; mouth neoplasms; rhodamines;     Show all 9 Subjects
Abstract:
... This study was aimed to determine the mechanism for flavonoid poor absorption related to P-glycoprotein (P-gp). The cellular uptake (CU) of 40 flavonoids was investigated in P-gp overexpressing KB/multidrug-resistant (MDR) cells. A total of 9 flavonoids, including 5,7,3′,4′-tetramethoxyflavone, with a significant (p < 0.05) CUKBE (2.90 ± 0.146 μmol/g) higher than CUKBP (1.57 ± 0.129 μmol/g) were i ...
DOI:
10.1021/acs.jafc.9b00039

9. Nutrient demand and fungal access to resources control the carbon allocation to the symbiotic partners in tripartite interactions of Medicago truncatula

Author:
Kafle, Arjun; Garcia, Kevin; Wang, Xiurong; Pfeffer, Philip E.; Strahan, Gary D.; Bücking, Heike
Source:
Plant, cell and environment 2019 v.42 no.1 pp. 270-284
ISSN:
0140-7791
Subject:
nutrient uptake,   etc   ; Medicago truncatula; carbon; host plants; legumes; mycorrhizal fungi; nitrogen; nutrients; phosphates; sucrose; symbionts; transporters;     Show all 12 Subjects
Abstract:
... Legumes form tripartite interactions with arbuscular mycorrhizal fungi and rhizobia, and both root symbionts exchange nutrients against carbon from their host. The carbon costs of these interactions are substantial, but our current understanding of how the host controls its carbon allocation to individual root symbionts is limited. We examined nutrient uptake and carbon allocation in tripartite in ...
DOI:
10.1111/pce.13359

10. Correction to: Diel plant water use and competitive soil cation exchange interact to enhance NH4+ and K+ availability in the rhizosphere

Author:
Espeleta, Javier F.; Cardon, Zoe G.; Ulrich Mayer, K.; Neumann, Rebecca B.
Source:
Plant and soil 2018 v.433 no.1-2 pp. 415-416
ISSN:
0032-079X
Subject:
nutrient uptake,   etc   ; ammonium; cation exchange; potassium; rhizosphere; soil;     Show all 6 Subjects
Abstract:
... In Table 1 of the original publication, values and units for parameters used to simulate root nutrient uptake (Vₘₐₓ and Kₘ) were incorrect. Here we present the correct values and units for these parameters. ...
DOI:
10.1007/s11104-018-3798-z

11. The Soil-Borne Legacy

Author:
Bakker, Peter A.H.M.; Pieterse, Corné M.J.; de Jonge, Ronnie; Berendsen, Roeland L.
Source:
Cell 2018 v.172 no.6 pp. 1178-1180
ISSN:
0092-8674
Subject:
nutrient uptake,   etc   ; crop production; microbiome; plant stress; stress response;     Show all 5 Subjects
Abstract:
... Plants greatly rely on their root microbiome for uptake of nutrients and protection against stresses. Recent studies have uncovered the involvement of plant stress responses in the assembly of plant-beneficial microbiomes. To facilitate durable crop production, deciphering the driving forces that shape the microbiome is crucial. ...
DOI:
10.1016/j.cell.2018.02.024

12. Chlorantraniliprole degenerates microvilli goblet cells of the Anticarsia gemmatalis (Lepidoptera: Noctuidae) midgut

Author:
Castro, Bárbara Monteiro de Castro e; Martínez, Luis Carlos; Plata-Rueda, Angelica; Soares, Marcus Alvarenga; Tavares, Wagner de Souza; Serrão, José Eduardo; Zanuncio, José Cola
Source:
Chemosphere 2019 v.229 pp. 525-528
ISSN:
0045-6535
Subject:
nutrient uptake,   etc   ; Anticarsia gemmatalis; goblet cells; homeostasis; insect larvae; insecticides; insects; lethal dose 50; metabolism; microvilli; midgut; transmission electron microscopy;     Show all 12 Subjects
Abstract:
... Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) is mainly controlled with synthetic insecticides such as chlorantraniliprole. However, these compounds may affect non-target organs of insect metabolism. The objective of this study was to evaluate the toxic effect in the midgut goblet cells of A. gemmatalis caterpillars exposed to chlorantraniliprole. The midgut of these caterpillars, which in ...
DOI:
10.1016/j.chemosphere.2019.05.041

13. Potential prebiotics and their transmission mechanisms: Recent approaches

Author:
Khangwal, Ishu; Shukla, Pratyoosh
Source:
Yàowù shípǐn fēnxī 2019 v.27 no.3 pp. 649-656
ISSN:
1021-9498
Subject:
nutrient uptake,   etc   ; carbohydrates; commercialization; diabetes; digestive system; energy; fruits; immunomodulation; inflammatory bowel disease; intestinal microorganisms; microencapsulation; postpartum period; prebiotics; vegetables;     Show all 14 Subjects
Abstract:
... Prebiotics are non-digestible carbohydrates which can be used as prime source of energy for gut microflora. These can be naturally occurring in fruit and vegetables or can be made synthetically by enzymatic digestions. New versatile sources of prebiotics had been found nowadays for economic commercialization. This review will decipher on highlighting the importance of prebiotics in immunomodulatio ...
DOI:
10.1016/j.jfda.2019.02.003

14. Water and nutrient uptake capacity of leaf-absorbing trichomes vs. roots in epiphytic tank bromeliads

Author:
Leroy, Céline; Gril, Eva; Si Ouali, Lynda; Coste, Sabrina; Gérard, Bastien; Maillard, Pascale; Mercier, Helenice; Stahl, Clément
Source:
Environmental and experimental botany 2019 v.163 pp. 112-123
ISSN:
0098-8472
Subject:
nutrient uptake,   etc   ; Aechmea; carbohydrates; carbon; epiphytes; growth traits; leaves; malates; photosynthesis; roots; stable isotopes; synergism; trichomes; uptake mechanisms; water content;     Show all 15 Subjects
Abstract:
... The water and nutrient uptake mechanisms used by vascular epiphytes have been the subject of a few studies. While leaf absorbing trichomes (LATs) are the main organ involved in resource uptake by bromeliads, little attention has been paid to the absorbing role of epiphytic bromeliad roots. This study investigates the water and nutrient uptake capacity of LATs vs. roots in two epiphytic tank bromel ...
DOI:
10.1016/j.envexpbot.2019.04.012

15. Target genes for plant productivity improvement

Author:
Nowicka, Beatrycze
Source:
Journal of biotechnology 2019 v.298 pp. 21-34
ISSN:
0168-1656
Subject:
nutrient uptake,   etc   ; crop production; crops; genes; genetic engineering; high-yielding varieties; metabolism; microRNA; mineral fertilizers; pesticides; plant growth; proteins; yields;     Show all 13 Subjects
Abstract:
... The use of chemical fertilizers and pesticides, as well as the development of high-yielding varieties enabled substantial increase in crop productivity during the 20th century. However, the increase in yield over the last two decades has been slower. It is thought that further improvement in productivity of the major crop species using traditional cultivation methods is limited. Therefore, the use ...
DOI:
10.1016/j.jbiotec.2019.04.008

16. Dominance of wine Saccharomyces cerevisiae strains over S. kudriavzevii in industrial fermentation competitions is related to an acceleration of nutrient uptake and utilization

Author:
Alonso‐del‐Real, Javier; Pérez‐Torrado, Roberto; Querol, Amparo; Barrio, Eladio
Source:
Environmental microbiology 2019 v.21 no.5 pp. 1627-1644
ISSN:
1462-2912
Subject:
nutrient uptake,   etc   ; Saccharomyces cerevisiae; Saccharomyces kudriavzevii; fermentation; grape must; habitats; new markets; phenotype; strains; transcriptomics; wine industry; wines; yeasts;     Show all 13 Subjects
Abstract:
... Grape must is a sugar‐rich habitat for a complex microbiota which is replaced by Saccharomyces cerevisiae strains during the first fermentation stages. Interest on yeast competitive interactions has recently been propelled due to the use of alternative yeasts in the wine industry to respond to new market demands. The main issue resides in the persistence of these yeasts due to the specific competi ...
DOI:
10.1111/1462-2920.14536

17. Considering the effects of temperature × nutrient interactions on the thermal response curve of carrying capacity

Author:
Lemoine, Nathan P.
Source:
Ecology 2019 v.100 no.4 pp. e02599
ISSN:
0012-9658
Subject:
nutrient uptake,   etc   ; carrying capacity; extinction; global warming; insects; models; nutrient-nutrient interactions; phytoplankton; prediction; risk; temperature; thermodynamics;     Show all 12 Subjects
Abstract:
... Climate warming will likely destabilize populations or drive consumers locally extinct. These predictions arise from consumer–resource models incorporating temperature‐dependent parameters, and the accuracy of these predictions hinges on the validity of temperature scalings for each parameter. Among all parameters, carrying capacity (K) is the most ill‐defined and the temperature scaling of this p ...
DOI:
10.1002/ecy.2599

18. Interspecific interaction alters root morphology in young walnut/wheat agroforestry systems in northwest China

Author:
Duan, Z. P.; Gan, Y. W.; Wang, B. J.; Hao, X. D.; Xu, W. L.; Zhang, W.; Li, L. H.
Source:
Agroforestry systems 2019 v.93 no.2 pp. 419-434
ISSN:
0167-4366
Subject:
nutrient uptake,   etc   ; Juglans regia; Triticum aestivum; agroforestry; intercropping; land use; soil depth; sole cropping; surface area; walnuts; wheat; China;     Show all 12 Subjects
Abstract:
... The objective of this experiment was to learn more about root morphology and spatial distribution in a specify walnut (Juglans regia L.)/wheat (Triticum aestivum L.) intercropping system. The effects of intercropping on aboveground yield and land equivalent ratio (LER) were also determined. The experiment was conducted at Hetian in the southern part of the Xinjiang Uyghur Autonomous Region. The re ...
DOI:
10.1007/s10457-017-0133-2

19. Uptake kinetics and interaction of selenium species in tomato (Solanum lycopersicum L.) seedlings

Author:
Wang, Mengke; Peng, Qin; Zhou, Fei; Yang, Wenxiao; Dinh, Quang Toan; Liang, Dongli
Source:
Environmental science and pollution research international 2019 v.26 no.10 pp. 9730-9738
ISSN:
0944-1344
Subject:
nutrient uptake,   etc   ; Solanum lycopersicum; hydroponics; nutrient transport; phytotoxicity; roots; sap; seedlings; selenates; selenites; selenium; shoots; tomatoes; xylem;     Show all 14 Subjects
Abstract:
... Selenite and selenate are two main selenium (Se) forms absorbed by plants. The comparative effects of selenite and/or selenate on Se uptake and translocation in plants in spite of their coexistence in the environment are still unclear. Therefore, tomato (Solanum lycopersicum L.) seedlings were grown in a hydroponic solution with exogenous selenite, selenate, or selenite and selenate mixed, and Se ...
DOI:
10.1007/s11356-019-04182-6

20. Breaching the Barrier: Quantifying Antibiotic Permeability across Gram-negative Bacterial Membranes

Author:
Cama, Jehangir; Henney, Abby Mae; Winterhalter, Mathias
Source:
Journal of molecular biology 2019
ISSN:
0022-2836
Subject:
nutrient uptake,   etc   ; Gram-negative bacteria; antibiotics; cytoplasm; drugs; hydrophilicity; hydrophobicity; lipid bilayers; lipopolysaccharides; peptidoglycans; permeability; porins; screening; toxic substances;     Show all 14 Subjects
Abstract:
... The double-membrane cell envelope of Gram-negative bacteria is a sophisticated barrier that facilitates the uptake of nutrients and protects the organism from toxic compounds. An antibiotic molecule must find its way through the negatively charged lipopolysaccharide layer on the outer surface, pass through either a porin or the hydrophobic layer of the outer membrane, then traverse the hydrophilic ...
DOI:
10.1016/j.jmb.2019.03.031