keyword
MENU ▼
Read by QxMD icon Read
search

soil biology

keyword
https://www.readbyqxmd.com/read/28734201/modification-of-chemical-properties-cu-fractionation-and-enzymatic-activities-in-an-acid-vineyard-soil-amended-with-winery-wastes-a-field-study
#1
Isabel Rodríguez-Salgado, Paula Pérez-Rodríguez, Antía Gómez-Armesto, Montserrat Díaz-Raviña, Juan Carlos Nóvoa-Muñoz, Manuel Arias-Estévez, David Fernández-Calviño
The effects of adding two winery wastes, perlite waste (PW) and bentonite waste (BW), to an acid vineyard soil were assessed using some chemical and biological soil properties in a field study that lasted 18 months. The addition of PW (up to 81 Mg ha(-1)) had neither significant nor permanent effects on soil characteristics such as the pH, organic matter content or nutrient concentrations, the amounts of copper or zinc, or the electrical conductivity. Moreover, no persistent negative effects were found on the enzymatic activities after PW application...
July 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28732267/understanding-the-holobiont-the-interdependence-of-plants-and-their-microbiome
#2
REVIEW
Carmen Sánchez-Cañizares, Beatriz Jorrín, Philip S Poole, Andrzej Tkacz
The holobiont is composed by the plant and its microbiome. In a similar way to ecological systems of higher organisms, the holobiont shows interdependent and complex dynamics [1,2]. While plants originate from seeds, the microbiome has a multitude of sources. The assemblage of these communities depends on the interaction between the emerging seedling and its surrounding environment, with soil being the main source. These microbial communities are controlled by the plant through different strategies, such as the specific profile of root exudates and its immune system...
July 18, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/28729856/biological-significance-of-marine-actinobacteria-of-east-coast-of-andhra-pradesh-india
#3
Alapati Kavitha, Handanahal S Savithri
An attempt was made to identify actinobacterial strains present in the marine soil of East Coast regions viz., Chirala, Bapatla, and Peddaganjam, Andhra Pradesh; Kanyakumari, Tamil Nadu and Goa, Goa along with the study of their antimicrobial potential. Eight out of 73 actinobacterial strains isolated from these regions showed strong antimicrobial activity against Gram positive bacteria, Gram negative bacteria, and Candida albicans. Molecular identification (16S rRNA analysis) of the eight strains revealed that they belong to Dietzia sp...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28727205/drivers-of-woody-canopy-water-content-responses-to-drought-in-a-mediterranean-type-ecosystem
#4
Tarin Paz-Kagan, Gregory P Asner
Severe droughts increase physiological stress in woody plant species, which can lead to mortality, fundamentally altering the composition, structure, and biogeography of forests in many regions. Little is known, however, about the factors determining the physiological response of woody plants to drought at landscape scales. Our objective was to understand woody plant species responses to ongoing changes in climate, using remotely sensed canopy water content (CWC) as an indicator of plant physiological and phenological status...
July 20, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28725573/determination-of-nitrogen-balance-in-agroecosystems
#5
Upendra M Sainju
Nitrogen balance in agroecosystems provides a quantitative framework of N inputs and outputs and retention in the soil that examines the sustainability of agricultural productivity and soil and environmental quality. Nitrogen inputs include N additions from manures and fertilizers, atmospheric depositions including wet and dry depositions, irrigation water, and biological N fixation. Nitrogen outputs include N removal in crop grain and biomass and N losses through leaching, denitrification, volatilization, surface runoff, erosion, gas emissions, and plant senescence...
2017: MethodsX
https://www.readbyqxmd.com/read/28725218/all-new-faces-of-diatoms-potential-source-of-nanomaterials-and-beyond
#6
REVIEW
Meerambika Mishra, Ananta P Arukha, Tufail Bashir, Dhananjay Yadav, G B K S Prasad
Nature's silicon marvel, the diatoms have lately astounded the scientific community with its intricate designs and lasting durability. Diatoms are a major group of phytoplanktons involved in the biogeochemical cycling of silica and are virtually inherent in every environment ranging from water to ice to soil. The usage of diatoms has proved prudently cost effective and its handling neither requires costly materials nor sophisticated instruments. Diatoms can easily be acquired from the environment, their culture requires ambient condition and does not involve any costly media or expensive instruments, besides, they can be transported in small quantities and proliferated to a desirable confluence from that scratch, thus are excellent cost effective industrial raw material...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28724089/grower-analysis-of-organic-matter-amendments-in-california-orchards
#7
Sat Darshan S Khalsa, Patrick H Brown
Organic matter amendments supply crop nutrients and enhance soil health, yet information specific to orchards is lacking. A survey was conducted to analyze use of these materials by California almond [ (Mill.) D.A. Webb] growers. Significant differences were observed for benefits, concerns, and accessibility to manure and green waste sources and between users and nonusers. Use patterns were significantly influenced by heavy and light users, farm size, and geographic region. Enhanced soil biology was the main benefit attributed to organic matter amendments by both users and nonusers...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28720278/-development-of-a-liquid-fermentation-system-and-encystment-for-a-nitrogen-fixing-bacterium-strain-having-biofertilizer-potential
#8
Mauricio Camelo-Rusinque, Andrés Moreno-Galván, Felipe Romero-Perdomo, Ruth Bonilla-Buitrago
The indiscriminate use of chemical fertilizers has contributed to the deterioration of the biological, physical and chemical properties of the soil, resulting in the loss of its productive capacity. For this reason, the use of biofertilizers has emerged as a technological alternative. The objective of this research was to develop a suitable liquid fermentation system and encystment for the multiplication of Azotobacter chroococcum AC1 strain, a bacterium employed in a biofertilizer formulation produced at present by CARPOICA, Colombia...
July 15, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28718095/changes-in-sub-soil-river-water-quality-upon-its-open-storage-a-case-study
#9
A K Mohanty, K K Satpathy, M V R Prasad
A study was carried out to investigate the changes in the physicochemical and biological properties of sub-soil river water upon its storage in a man-made reservoir. Palar sub-soil and reservoir water samples were collated fortnightly for a period of 5 years (2010-2014). The open reservoir is used as a reliable raw water source for condenser cooling systems and for the demineralizing (DM) plant input of Fast Breeder Test Reactor (FBTR), Madras Atomic Power Station (MAPS), and other laboratories at Kalpakkam, southeast coast of India...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28716411/genetic-mitigation-strategies-to-tackle-agricultural-ghg-emissions-the-case-for-biological-nitrification-inhibition-technology
#10
REVIEW
G V Subbarao, J Arango, K Masahiro, A M Hooper, T Yoshihashi, Y Ando, K Nakahara, S Deshpande, I Ortiz-Monasterio, M Ishitani, M Peters, N Chirinda, L Wollenberg, J C Lata, B Gerard, S Tobita, I M Rao, H J Braun, V Kommerell, J Tohme, M Iwanaga
Accelerated soil-nitrifier activity and rapid nitrification are the cause of declining nitrogen-use efficiency (NUE) and enhanced nitrous oxide (N2O) emissions from farming. Biological nitrification inhibition (BNI) is the ability of certain plant roots to suppress soil-nitrifier activity, through production and release of nitrification inhibitors. The power of phytochemicals with BNI-function needs to be harnessed to control soil-nitrifier activity and improve nitrogen-cycling in agricultural systems. Transformative biological technologies designed for genetic mitigation are needed, so that BNI-enabled crop-livestock and cropping systems can rein in soil-nitrifier activity, to help reduce greenhouse gas (GHG) emissions and globally make farming nitrogen efficient and less harmful to environment...
September 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28711842/nitrogen-deposition-has-minor-effect-on-soil-extracellular-enzyme-activities-in-six-chinese-forests
#11
Xin Jing, Xiao Chen, Mao Tang, Zongju Ding, Lai Jiang, Peng Li, Suhui Ma, Di Tian, Longchao Xu, Jianxiao Zhu, Chengjun Ji, Haihua Shen, Chengyang Zheng, Jingyun Fang, Biao Zhu
Soil extracellular enzymes play a key role in mediating a range of forest ecosystem functions (i.e., carbon and nutrients cycling and biological productivity), particularly in the face of atmospheric N deposition that has been increasing at an unprecedented rate globally. However, most studies have focused only on surface soils in a single ecosystem. In this study, we aimed to determine whether the effect of simulated N deposition on the activities and ratios of soil enzymes changes with soil depth across six forest ecosystems in eastern China...
July 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28711664/complete-genome-sequence-of-bacillus-velezensis-s3-1-a-potential-biological-pesticide-with-plant-pathogen-inhibiting-and-plant-promoting-capabilities
#12
Qing Jin, Qiuyue Jiang, Lei Zhao, Cuizhu Su, Songshuo Li, Fangyi Si, Shanshan Li, Chenhao Zhou, Yonglin Mu, Ming Xiao
Antagonistic soil microorganisms, which are non-toxic, harmless non-pollutants, can effectively reduce the density of pathogenic species by some ways. Bacillus velezensis strain S3-1 was isolated from the rhizosphere soil of cucumber, and was shown to inhibit plant pathogens, promote plant growth and efficiently colonize rhizosphere soils. The strain produced 13 kinds of lipopeptide antibiotics, belonging to the surfactin, iturin and fengycin families. Here, we presented the complete genome sequence of S3-1...
July 12, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28711001/improvements-in-wheat-productivity-and-soil-quality-can-accomplish-by-co-application-of-biochars-and-chemical-fertilizers
#13
Jawaria Sadaf, Ghulam Abbas Shah, Khurram Shahzad, Nadeem Ali, Muhammad Shahid, Safdar Ali, Rai Altaf Hussain, Zammurad Iqbal Ahmed, Bouba Traore, Iqbal M I Ismail, Muhammad Imtiaz Rashid
The beneficial role of biochar is evident in most of infertile soils, however this is argued that increment in crop yield owing to biochar application does not always achieve in cultivated/fertile soils. The nutrient biochar believed to enhance crop yield and soil fertility than structural biochar that may offset the positive effect of chemical fertilizer on crop performance but improves soil structural properties. Therefore, we investigated the effect of biochars [produced from nutrient rich feedstocks like poultry manure (PMB) and farmyard manure (FMB) and structural feedstocks such as wood chips (WCB) and kitchen waste (KWB)], and chemical fertilizers (CF) when applied alone or in combination on soil chemical properties, wheat growth, yield and nitrogen uptake in a cultivated clay loam soil...
July 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28710950/citric-acid-assisted-phytoextraction-of-chromium-by-sunflower-morpho-physiological-and-biochemical-alterations-in-plants
#14
Mujahid Farid, Shafaqat Ali, Muhammad Rizwan, Qasim Ali, Farhat Abbas, Syed Asad Hussain Bukhari, Rashid Saeed, Longhua Wu
Soil and water contamination from heavy metals and metalloids is one of the most discussed and burning global issues due to its potential to cause the scarcity of healthy food and safe water. The scientific community is proposing a range of lab and field based physical, chemical and biological solutions to remedy metals and metalloids contaminated soils and water. The present study finds out a possibility of Chromium (Cr) extraction by sunflower from spiked soil under chelating role of citric acid (CA). The sunflower plants were grown under different concentrations of Cr (0, 5, 10 & 20mgkg(-1)) and CA (0, 2...
July 12, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28707368/isolation-and-characterization-of-metaldehyde-degrading-bacteria-from-domestic-soils
#15
John C Thomas, Thorunn Helgason, Chris J Sinclair, James W B Moir
Metaldehyde is a common molluscicide, used to control slugs in agriculture and horticulture. It is resistant to breakdown by current water treatment processes, and its accumulation in drinking water sources leads to regular regulatory failures in drinking water quality. To address this problem, we isolated metaldehyde-degrading microbes from domestic soils. Two distinct bacterial isolates were cultured, that were able to grow prototrophically using metaldehyde as sole carbon and energy source. One isolate belonged to the genus Acinetobacter (strain designation E1) and the other isolate belonged to the genus Variovorax (strain designation E3)...
July 13, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28706524/evaluation-of-wild-lentil-species-as-genetic-resources-to-improve-drought-tolerance-in-cultivated-lentil
#16
Linda Y Gorim, Albert Vandenberg
Increasingly unpredictable annual rainfall amounts and distribution patterns have far reaching implications for pulse crop biology. Seedling and whole plant survival will be affected given that water is a key factor in plant photosynthesis and also influences the evolving disease spectrum that affects crops. The wild relatives of cultivated lentil are native to drought prone areas, making them good candidates for the evaluation of drought tolerance traits. We evaluated root and shoot traits of genotypes of cultivated lentil and five wild species grown under two water deficit regimes as well as fully watered conditions over a 13 week period indoors...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28704064/nucleic-acid-extraction-from-synthetic-mars-analog-soils-for-in-situ-life-detection
#17
Angel Mojarro, Gary Ruvkun, Maria T Zuber, Christopher E Carr
Biological informational polymers such as nucleic acids have the potential to provide unambiguous evidence of life beyond Earth. To this end, we are developing an automated in situ life-detection instrument that integrates nucleic acid extraction and nanopore sequencing: the Search for Extra-Terrestrial Genomes (SETG) instrument. Our goal is to isolate and determine the sequence of nucleic acids from extant or preserved life on Mars, if, for example, there is common ancestry to life on Mars and Earth. As is true of metagenomic analysis of terrestrial environmental samples, the SETG instrument must isolate nucleic acids from crude samples and then determine the DNA sequence of the unknown nucleic acids...
July 13, 2017: Astrobiology
https://www.readbyqxmd.com/read/28701744/massively-parallel-whole-genome-amplification-for-single-cell-sequencing-using-droplet-microfluidics
#18
Masahito Hosokawa, Yohei Nishikawa, Masato Kogawa, Haruko Takeyama
Massively parallel single-cell genome sequencing is required to further understand genetic diversities in complex biological systems. Whole genome amplification (WGA) is the first step for single-cell sequencing, but its throughput and accuracy are insufficient in conventional reaction platforms. Here, we introduce single droplet multiple displacement amplification (sd-MDA), a method that enables massively parallel amplification of single cell genomes while maintaining sequence accuracy and specificity. Tens of thousands of single cells are compartmentalized in millions of picoliter droplets and then subjected to lysis and WGA by passive droplet fusion in microfluidic channels...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700607/life-history-traits-and-life-table-analysis-of-lobiopa-insularis-coleoptera-nitidulidae-fed-on-strawberry
#19
Nancy Greco, Nicolás Cluigt, Andrew Cline, Gerardo Liljesthröm
Lobiopa insularis is a newly reported pest of strawberry in Argentina. We investigated characteristics of its biology in the laboratory, including survivorship and reproduction. We also estimated population growth for L. insularis fed ripe strawberry fruits. Lobiopa insularis was not observed ovipositing on strawberry fruits. A higher proportion of egg masses were recorded from a depth of 1 cm within the soil than on either the soil surface or deeper than 1cm (i.e. between 1and 2 cm) within the soil. The duration of preimaginal developmental stages represented ~18...
2017: PloS One
https://www.readbyqxmd.com/read/28699782/bacterial-siderophores-promote-plant-growth-screening-of-catechol-and-hydroxamate-siderophores
#20
Anna Grobelak, Joanna Hiller
The aim of the study was to determine the quality and quantity of siderophores produced by bacteria isolated from plants' roots. The second aim was to determine the effect of siderophores on plants growth (Festuca rubra L. and Brassica napus L.). The study was carried out using bacteria isolated from roots of: Arabidopsis thaliana L., F. rubra, and Agrostis capillaris L., growing on the heavy metals contaminated area. The chrome azurol sulfonate (CAS) test, Arnow's test for catechol siderophores, and Csaksy's test for hydroxamate siderophores were performed...
September 2, 2017: International Journal of Phytoremediation
keyword
keyword
61461
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"