Results 81 to 90 of about 5,226 (300)

Relationship between acidity and chemical properties of brazilian soils

Scientia Agricola, 2003
In soils of tropical climate regions the high acidity and the presence of exchangeable aluminum (Al3+), associated to low fertility, are the main restrainting factors for agricultural production.
Cássio Hamilton Abreu Jr., Takashi Muraoka, André Fernando Lavorante   +2 more
doaj  

Ion Exchange Chromatography of Monochloroacetic Acid and Monoiodoacetic acid

Journal of Synthetic Organic Chemistry, Japan, 1960
A process of separatory determination of monochioroacetic acid (M. C. A.) and monoiodoacetic acid (M. I. A.) by use of ion exchange resin has been investigated. A strongly basic R-NO3 type resin, Amberlite IRA-410, of 100-150 mesh size was used for the test.The adsorbed acids were liberated by using NaNO3 as a liberating agent in order of M. C. A.and M.
FUNASAKA, Wataru, KOJIMA, Tsuguo, YAMAMOTO, Keiji   +2 more
openaire   +2 more sources

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Organopolymer Based Liming Materials for Alleviating Acidity in Acid Sulphate Soils of Kuttanad, India [PDF]

Acid sulphate soils of Kerala are characterized by extreme acidity and toxic concentrations of aluminium (Al³⁺) and iron (Fe²⁺/Fe³⁺), which severely restrict crop growth and productivity.
Joseph, Biju, J S , Bindhu, S, Sumayya, George, Thomas, B, Rani, Gladis, R   +5 more
core   +1 more source

Attributes of acidity and exchangeable cations in oxisol fertilized by phosphate alkaline biosolid atributos de acidez e cátions trocáveis em latossolo fertilizado por biossólido alcalinizado fosfatado [PDF]

, 2011
Alkaline biosolid enriched by phosphorus (P) increase soil extractable P more than applied alone. It also can exert further effects above soil acidity attributes and exchangeable calcium and magnesium.
Koehler, Henrique Soares, da Silva, Luiz Carlos, SILVA, Luiz Carlos DA, Lucchesi, Luiz Antônio Correa, Corrêa LUCCHESI, Luiz Antonio, Soares KOEHLER, Henrique   +5 more
core   +2 more sources

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Phosphorus fraction transformation and soil acidity mitigation through integration of water hyacinth biochar with organic and synthetic phosphorus sources in acidic soil

Frontiers in Environmental Science
Phosphorus (P) deficiency is a major problem in acidic and tropical soils, including in Ethiopia, because more than 80% of P derived from synthetic fertilizers becomes fixed and unavailable.
Mekuanint Lewoyehu, Mekuanint Lewoyehu, Yudai Kohira, Solomon Addisu, Ashenafei Gezahegn, Tassapak Wutisirirattanachai, Desalew Fentie, Shinjiro Sato   +7 more
doaj   +1 more source

Bridging the yield gaps of bread wheat at a scale through an innovative method of lime application in the acidic soils of Northwestern Ethiopia

Cogent Food & Agriculture, 2020
Soil acidity is one of the major constraints for crop production in the highland areas. The finding of a 25% lime application method was recommended to amend the problems.
Asmamaw Demil, Tadele Amare, Yihenew Awoke, Assefa Derebe, Tilahun Adera   +4 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source