keyword
MENU ▼
Read by QxMD icon Read
search

Hydroponic

keyword
https://www.readbyqxmd.com/read/28444412/biochemical-and-genetic-analyses-of-n-metabolism-in-maize-testcross-seedlings-1-leaves
#1
Ignacio Trucillo Silva, Hari Kishan R Abbaraju, Lynne P Fallis, Hongjun Liu, Michael Lee, Kanwarpal S Dhugga
Aside from the identification of 32 QTL for N metabolism in the seedling leaves of a maize testcross population, alanine aminotransferase was found to be a central enzyme in N assimilation. Excessive application of nitrogen (N) fertilizer to grow commercial crops like maize is a cause of concern because of the runoff of excess N into streams and rivers. Breeding maize with improved N use efficiency (NUE) would reduce environmental pollution as well as input costs for the farmers. An understanding of the genetics underlying N metabolism is key to breeding for NUE...
April 25, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28443109/novel-alleles-of-phosphorus-starvation-tolerance-1-gene-pstol1-from-oryza-rufipogon-confers-high-phosphorus-uptake-efficiency
#2
Kumari Neelam, Shiwali Thakur, Neha, Inderjit S Yadav, Kishor Kumar, Salwinder S Dhaliwal, Kuldeep Singh
Limited phosphorus availability in the soil is one of the major constraints to the growth and productivity of rice across Asian, African and South American countries, where 50% of the rice is grown under rain-fed systems on poor and problematic soils. With an aim to determine novel alleles for enhanced phosphorus uptake efficiency in wild species germplasm of rice Oryza rufipogon, we investigated phosphorus uptake1 (Pup1) locus with 11 previously reported SSR markers and sequence characterized the phosphorus-starvation tolerance 1 (PSTOL1) gene...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28441480/metabolite-profiling-of-a-zn-accumulating-rice-mutant
#3
Yin Wang, Sha Mei, Zhixue Wang, Zhoulei Jiang, Zhangshicang Zhu, Jingwen Ding, Dianxing Wu, Xiao-Li Shu
Breeding crops with high Zn-density is an effective way to alleviate human dietary Zn deficiencies. We characterized a mutant Lilizhi (LLZ) accumulating at least 35% higher Zn concentration in grain than wild-type in hydroponics experiments. The mutant stored less Zn contents in the roots and transported more Zn to the grain. Metabolite profiling demonstrated that with high Zn treatment, the content of proline, asparagine, citric acid and malic acid were enhanced in both LLZ and the WT, which were thought to be involved in Zn transport in rice...
April 25, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28436682/kinetics-biochemical-and-factorial-analysis-of-chromium-uptake-in-a-multi-ion-system-by-tradescantia-pallida-rose-d-r-hunt
#4
Vibha Sinha, Kannan Pakshirajan, N Arul Manikandan, Rakhi Chaturvedi
Effluent from electroplating and leather industries is a major concern for the environment due to the presence of chromium (Cr) and other ions, such as sulphate, nitrate, phosphate, etc., which needs to be regulated prior to its discharge into the environment. This study evaluated the potential of Tradescantia pallida, a plant species known for its Cr bioaccumulation, for the simultaneous removal of Cr(6+), SO4(2-), NO3(-) and PO4(3-). Different combination levels of Cr(6+) and the co-ions were planned as per the Plackett-Burman design of experiments performed using hydroponics system...
April 24, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28433594/favouring-no-over-h2o2-production-will-increase-pb-tolerance-in-prosopis-farcta-via-altered-primary-metabolism
#5
Somaieh Zafari, Mohsen Sharifi, Luis A J Mur, Najmeh Ahmadian Chashmi
Reactive oxygen species (ROS) and nitric oxide (NO) are known in triggering defense functions to detoxify heavy metal stresses. To investigate the relevance of ROS production, Pb treatment (400µM) alone and in combination with 400µM sodium ascorbate (Asc: as H2O2 scavenger) were given to hydroponically grown Prosopis farcta seedlings over a time course of 72h. Data presented here indicate that, the low extent of H2O2 due to scavenging by ascorbate, together with high level of NO improved Pb+Asc- treated Prosopis growth...
April 20, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28432978/cadmium-hampers-salt-tolerance-of-sesuvium-portulacastrum
#6
Mariem Wali, Soledad Martos, Laura Pérez-Martín, Chedly Abdelly, Tahar Ghnaya, Charlotte Poschenrieder, Benet Gunsé
It is well known that salinity reduces cadmium toxicity in halophytes. However, the possible interference of Cd with the mechanisms of salt tolerance is poorly explored. The aim of this study was to see whether Cd affects salt tolerance mechanisms in the halophyte Sesuvium portulacastrum. S. portulacastrum plants obtained from cuttings were grown in hydroponics for 3 weeks and then exposed to low (0.09 mM) or moderate (200 mM) NaCl concentrations, alone or in combination with 25 μM CdCl2. Microscopy observation revealed two strategies of salt tolerance: euhalophytism and secretion of salt by bladder cells...
April 13, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28432977/effect-of-short-term-zn-pb-or-long-term-multi-metal-stress-on-physiological-and-morphological-parameters-of-metallicolous-and-nonmetallicolous-echium-vulgare-l-populations
#7
Sławomir Dresler, Magdalena Wójciak-Kosior, Ireneusz Sowa, Grzegorz Stanisławski, Izabela Bany, Małgorzata Wójcik
The aim of the study was to determine the response of metallicolous and nonmetallicolous Echium vulgare L. populations to chronic multi-metal (Zn, Pb, Cd) and acute Zn (200, 400 μM) and Pb (30, 60 μM) stress. Three populations of E. vulgare, one from uncontaminated and two from metal-contaminated areas, were studied. Two types of experiments were performed - a short-term hydroponic experiment with acute Zn or Pb stress and a long-term manipulative soil experiment with the use of soils from the sites of origin of the three populations...
April 13, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28427774/phosphorus-effects-on-radial-oxygen-loss-root-porosity-and-iron-plaque-in-two-mangrove-seedlings-under-cadmium-stress
#8
Minyue Dai, Jingchun Liu, Wenwen Liu, Haoliang Lu, Hui Jia, Hualong Hong, Chongling Yan
Phosphorus is an indispensable element for plants, but its role in alleviating the cadmium toxicity of mangrove seedlings is poorly documented. In this study, mangrove seedlings were grown in hydroponics and exposed to various Cd and P treatments. Data suggested that the inhibitory effect of Cd on the rate of radial oxygen loss and root porosity was alleviated by P. A. marina had a higher rate of ROL and POR, indicating that it had a stronger adaptability to anaerobic environment. K. obovata induced a higher Fe concentration in iron plaque under co-application of Cd and P, which may relate to higher biomass...
April 17, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28425557/dual-spectra-band-emissive-eu-2-mn-2-co-activated-alkaline-earth-phosphates-for-indoor-plant-growth-novel-phosphor-converted-leds
#9
Young Jun Yun, Jin Kyu Kim, Ji Young Ju, Seul Ki Choi, Woon Ik Park, Jae Yong Suh, Ha-Kyun Jung, Yongseon Kim, Sungho Choi
This paper reports designing a novel single composition blue/red color illuminating phosphor followed by fabricating "smart" agricultural/horticultural LED lighting. Color-tunable Eu(2+)/Mn(2+) co-activated alkaline earth phosphates, Na(Sr,Ba)PO4 and Ca3Mg3(PO4)4, are considered, and the stable doping sites for the corresponding activators are identified by using first-principle DFT calculations. We can realize the designated color purity with stable thermal quenching preserved luminescence behavior is induced by the Eu(2+) center positioned at different coordination states with intermixed Sr(2+)/Ba(2+) sites in Na(Sr,Ba)PO4 hosts...
April 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28424719/comparative-analysis-of-root-traits-and-the-associated-qtls-for-maize-seedlings-grown-in-paper-roll-hydroponics-and-vermiculite-culture-system
#10
Zhigang Liu, Kun Gao, Shengchen Shan, Riling Gu, Zhangkui Wang, Eric J Craft, Guohua Mi, Lixing Yuan, Fanjun Chen
Root system architecture (RSA) plays an important role in the acquisition of both nitrogen (N) and phosphorus (P) from the environment. Currently RSA is rarely considered as criteria for selection to improve nutrient uptake efficiency in crop breeding. Under field conditions roots can be greatly influenced by uncontrolled environment factors. Therefore, it is necessary to develop fast selection methods for evaluating root traits of young seedlings in the lab which can then be related to high nutrient efficiency of adult plants in the field...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28419958/arsenate-and-fluoride-enhanced-each-other-s-uptake-in-as-sensitive-plant-pteris-ensiformis
#11
Suchismita Das, Letuzia M de Oliveira, Evandro da Silva, Lena Q Ma
We investigated the effects of arsenate (AsV) and fluoride (F) on each other's uptake in an As-sensitive plant Pteris ensiformis. Plants were exposed to 1) 0.1 × Hoagland solution control, 2) 3.75 mg L(-1) As and 1.9, 3.8, or 7.6 mg L(-1) F, or 3) 1 mg L(-1) F and 3.75 mg L(-1) or 7.5 mg L(-1) As for 7 d in hydroponics. P. ensiformis accumulated 14.7-32.6 mg kg(-1) As at 3.75 mg L(-1) AsV, and 99-145 mg kg(-1) F at 1 mg L(-1) F. Our study revealed that AsV and F increased each other's uptake when co-present...
April 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28409415/%C3%AE-aminobutyric-acid-gaba-confers-chromium-stress-tolerance-in-brassica-juncea-l-by-modulating-the-antioxidant-defense-and-glyoxalase-systems
#12
Jubayer Al Mahmud, Mirza Hasanuzzaman, Kamrun Nahar, Anisur Rahman, Md Shahadat Hossain, Masayuki Fujita
Chromium (Cr) toxicity is hazardous to the seed germination, growth, and development of plants. γ-aminobutyric acid (GABA) is a non-protein amino acid and is involved in stress tolerance in plants. To investigate the effects of GABA in alleviating Cr toxicity, we treated eight-d-old mustard (Brassica juncea L.) seedlings with Cr (0.15 and 0.3 mM K2CrO4, 5 days) alone and in combination with GABA (125 µM) in a semi-hydroponic medium. The roots and shoots of the seedlings accumulated Cr in a dose-dependent manner, which led to an increase in oxidative damage [lipid peroxidation; hydrogen peroxide (H2O2) content; superoxide (O2(•-)) generation; lipoxygenase (LOX) activity], methylglyoxal (MG) content, and disrupted antioxidant defense and glyoxalase systems...
April 13, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28407091/brassinosteroid-involvement-in-arabidopsis-thaliana-stomatal-opening
#13
Shin-Ichiro Inoue, Nozomi Iwashita, Yohei Takahashi, Eiji Gotoh, Eiji Okuma, Maki Hayashi, Ryohei Tabata, Atsushi Takemiya, Yoshiyuki Murata, Michio Doi, Toshinori Kinoshita, Ken-Ichiro Shimazaki
Stomata within the plant epidermis regulate CO2 uptake for photosynthesis and water loss through transpiration. Stomatal opening in Arabidopsis thaliana is determined by various factors, including blue light as a signal and multiple phytohormones. Plasma membrane transporters, including H+-ATPase, K+ channels, and anion channels in guard cells mediate these processes, and the activities and expression levels of these components determine stomatal aperture. However, the regulatory mechanisms involved in these processes are not fully understood...
April 12, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28399495/stable-isotopic-composition-of-perchlorate-and-nitrate-accumulated-in-plants-hydroponic-experiments-and-field-data
#14
Nubia Luz Estrada, J K Böhlke, Neil C Sturchio, Baohua Gu, Greg Harvey, Kent O Burkey, David A Grantz, Margaret T McGrath, Todd A Anderson, Balaji Rao, Ritesh Sevanthi, Paul B Hatzinger, W Andrew Jackson
Natural perchlorate (ClO4(-)) in soil and groundwater exhibits a wide range in stable isotopic compositions (δ(37)Cl, δ(18)O, and Δ(17)O), indicating that ClO4(-) may be formed through more than one pathway and/or undergoes post-depositional isotopic alteration. Plants are known to accumulate ClO4(-), but little is known about their ability to alter its isotopic composition. We examined the potential for plants to alter the isotopic composition of ClO4(-) in hydroponic and field experiments conducted with snap beans (Phaseolus vulgaris L...
April 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28398082/transcriptomic-response-of-arabidopsis-thaliana-l-heynh-roots-to-ibuprofen
#15
Premysl Landa, Sylva Prerostova, Lenka Langhansova, Petr Marsik, Tomas Vanek
Surface waters in urban areas are contaminated by ibuprofen (IBP), a popular and extensively used anti-inflammatory drug. In this study, we investigated the transcriptomic response in Arabidopsis thaliana (L.) Heynh. roots with the aim of revealing genes that are potentially involved in IBP detoxification and to elucidate the effect of IBP on plants. IBP up-regulated 63 and down-regulated 38 transcripts (p-value < 0.1, fold change ≥ 2) after two-day exposure to a 5 µM (1.03 mg L(-1)) concentration of IBP under hydroponic conditions...
April 11, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28394079/effect-of-phytoliths-for-mitigating-water-stress-in-durum-wheat
#16
Jean Dominique Meunier, Doris Barboni, Muhammad Anwar-Ul-Haq, Clément Levard, Perrine Chaurand, Vladimir Vidal, Olivier Grauby, Roland Huc, Isabelle Laffont-Schwob, Jacques Rabier, Catherine Keller
The role of silicon (Si) in alleviating biotic and abiotic stresses in crops is well evidenced by empirical studies; however, the mechanisms by which it works are still poorly known. The aim of this study is to determine whether or not phytolith composition and distribution in wheat are affected by drought and, if so, why. Durum wheat was grown using hydroponics in the presence of polyethylene glycol (PEG)-6000 to perform a water-stress simulation. We developed an original method for in situ analysis of phytoliths in leaves via X-ray imaging...
April 10, 2017: New Phytologist
https://www.readbyqxmd.com/read/28387709/screening-for-cd-safe-cultivars-of-chinese-cabbage-and-a-preliminary-study-on-the-mechanisms-of-cd-accumulation
#17
Jingjie Wang, Nan Yu, Guangmao Mu, Kamran I Shinwari, Zhenguo Shen, Luqing Zheng
With the rapid progress of industrialization, the effects of environmental contamination on plant toxicity, and subsequently on human health, is a growing concern. For example, the heavy metal pollution of soil such as that caused by cadmium (Cd) is a serious threat. Therefore, screening for pollution-safe edible plants is an essential approach for growing plants under heavy metal-contaminated soils. In the current study, 35 Chinese cabbage (Brassica pekinensis L.) cultivars were selected with the aim of screening for Cd-safe cultivars (CSCs), analyzing their safety, and exploring the mechanism of Cd accumulation...
April 7, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28386543/broccoli-microgreens-a-mineral-rich-crop-that-can-diversify-food-systems
#18
Carolyn F Weber
Current malnourishment statistics are high and are exacerbated by contemporary agricultural practices that damage the very environments on which the production of nutritious food depends. As the World's population grows at an unprecedented rate, food systems must be revised to provide adequate nutrition while minimizing environmental impacts. One specific nutritional problem that needs attention is mineral (e.g., Fe and Zn) malnutrition, which impacts over two-thirds of the World's people living in countries of every economic status...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/28383248/xylem-and-phloem-based-transport-of-ceo2-nanoparticles-in-hydroponic-cucumber-plants
#19
Yuhui Ma, Xiao He, Peng Zhang, Zhiyong Zhang, Yayun Ding, Junzhe Zhang, Guohua Wang, Changjian Xie, Wenhe Luo, Jing Zhang, Lirong Zheng, Zhifang Chai, Ke Yang
Uptake and translocation of manufactured nanoparticles (NPs) in plants have drawn much attention due to their potential toxicity to the environment, including food webs. In this paper, the xylem and phloem based transport of CeO2 NPs in hydroponic cucumber plants was investigated using a split-root system. One half of the root system was treated with 200 or 2000 mg/L of CeO2 NPs for 3 days, whereas the other half remained untreated, with both halves sharing the same aerial part. The quantitative distribution and speciation of Ce in different plant tissues and xylem sap were analyzed by inductively coupled plasma-mass spectrometry, transmission electron microscope, X-ray absorption near edge structure, and X-ray fluorescence...
April 12, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28382027/potential-for-biocontrol-of-hairy-root-disease-by-a-paenibacillus-clade
#20
Lien Bosmans, Irene De Bruijn, Saskia Gerards, Rob Moerkens, Lore Van Looveren, Lieve Wittemans, Bart Van Calenberge, Anneleen Paeleman, Stefan Van Kerckhove, René De Mot, Jef Rozenski, Hans Rediers, Jos M Raaijmakers, Bart Lievens
Rhizogenic Agrobacterium biovar 1 is the causative agent of hairy root disease (HRD) in the hydroponic cultivation of tomato and cucumber causing significant losses in marketable yield. In order to prevent and control the disease chemical disinfectants such as hydrogen peroxide or hypochlorite are generally applied to sanitize the hydroponic system and/or hydroponic solution. However, effective control of HRD sometimes requires high disinfectant doses that may have phytotoxic effects. Moreover, several of these chemicals may be converted to unwanted by-products with human health hazards...
2017: Frontiers in Microbiology
keyword
keyword
75012
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"