Institution
Agriculture and Agri-Food Canada
Facility•Ottawa, Ontario, Canada•
About: Agriculture and Agri-Food Canada is a facility organization based out in Ottawa, Ontario, Canada. It is known for research contribution in the topics: Population & Soil water. The organization has 10921 authors who have published 21332 publications receiving 748193 citations. The organization is also known as: Department of Agriculture and Agri-Food.
Topics: Population, Soil water, Manure, Tillage, Loam
Papers published on a yearly basis
Papers
More filters
••
TL;DR: In this article, the acidifying effects of urea and anhydrous NH 3 when used as fertilizers for cereal production in Saskatchewan, Canada, were quantified and the major effect of acidification was a depletion of exchangeable Ca and Mg.
Abstract: Acidity generated by N fertilizers depends on factors such as the composition of the fertilizer, climatic and soil conditions, and the crops grown. Our objective was to quantify the acidifying effects of urea and anhydrous NH 3 when used as fertilizers for cereal production in Saskatchewan, Canada. The fertilizers were injected annually (at 10-cm depth) into a medium-textured, moderately acid (pH 5.5) Typic Haploboroll, at rates of 0, 45, 90, and 180 kg N ha -1 for 9 yr. Soil acidity increased as N application rate increased, with anhydrous NH 3 causing greater acidification than urea. Although pH values as low as 4.3 were recorded in soil treated with anhydrous NH 3 , KCl-exchangeable acidity remained low. The major effect of acidification was a depletion of exchangeable Ca and Mg. The solubility of Mn (but not Al) increased substantially as pH decreased, with solution concentrations of almost 30 mg Mn L -1 being recorded 6 d after injection of NH 3 . Acidity generated by anhydrous NH 3 compared well with values predicted assuming that all of the applied NH 3 was oxidized to NO - 3 (with the production of 1 mol H + mol -1 of N) and that these protons were partly neutralized by OH - released when NO - 3 was taken up and assimilated by plants. Acidification due to export of bases in grain was insignificant because wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) remove only a slight excess of cations over anions. Urea failed to realize its full acidification potential because of an apparent loss of urea-N from the soil by NH 3 volatilization.
174 citations
••
TL;DR: As the world of CPPs is rapidly advancing in both mammalian and plant system, there is a promising future for the various applications of transduction and transfection into intact cells.
Abstract: Novel classes and applications of cell-penetrating peptides (CPPs) are being constantly discovered since they were first identified 2 decades ago. These short cationic peptides (nanomolecules) either by covalent binding or by noncovalent binding can traverse cell membranes and deliver a variety of molecules that are unable to overcome the permeability barrier in their own capacity. The ability of the CPPs to deliver variety of macromolecules, such as oligonucleotides, therapeutic drugs, proteins, and medical imaging agents, by forming nanoparticulate carriers in a range of cells has led them to emerge as a potential tool for both macromolecule delivery application and to gain insight into the fundamentals of mechanism of cellular uptake across the plasma membrane. This review explores the recent advances, challenges, and future prospects in the field of CPP-mediated cargo delivery in mammalian and plant cells. Studies have been conducted into the peptide chemistry and stability of CPP-macromolecular complexes. Most of the CPPs have been shown to be nontoxic and do not interfere with the functionality of the macromolecules delivered across the cell membrane. The mechanism of uptake of CPP-cargo complexes and the uptake of CPPs alone across the plasma membrane remains unresolved. As the world of CPPs is rapidly advancing in both mammalian and plant system, there is a promising future for the various applications of transduction and transfection into intact cells.
174 citations
••
TL;DR: It was concluded that feeding raw or heated flaxseed to dairy cows alters blood and milk fatty acid composition and has negative effects on milk yield and milk composition.
174 citations
••
TL;DR: Morphology of the TVC may contribute to the greater resistance of B. indicus bulls to high ambient temperatures by conferring a better testicular blood supply and by facilitating heat transfer between the testicular artery and veins.
174 citations
••
TL;DR: The current distribution of H. halys is updated, potential geographic range expansion based on passive and active dispersal is discussed, and insight on the economic, environmental and social impact associated with H. Halys is provided.
Abstract: The brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae), has emerged as a harmful invasive insect pest in North America and Europe in the 1990s and 2000s, respectively. Native to eastern Asia, this highly polyphagous pest (>120 different host plants) is spreading rapidly worldwide, notably through human activities. The increasing global importance of the pest suggests that more coordinated actions are needed to slow its spread and mitigate negative effects in invaded areas. Prevention of large-scale outbreaks will require accurate identification and effective mitigation tools to be rapidly developed and widely implemented. In this short review, we update the current distribution of H. halys, discuss potential geographic range expansion based on passive and active dispersal and provide insight on the economic, environmental and social impact associated with H. halys.
174 citations
Authors
Showing all 10964 results
Name | H-index | Papers | Citations |
---|---|---|---|
Fereidoon Shahidi | 119 | 951 | 57796 |
Miao Liu | 111 | 993 | 59811 |
Xiang Li | 97 | 1472 | 42301 |
Eviatar Nevo | 95 | 848 | 40066 |
Tim A. McAllister | 85 | 862 | 32409 |
Hubert Kolb | 84 | 420 | 25451 |
Daniel M. Weary | 83 | 437 | 22349 |
Karen A. Beauchemin | 83 | 423 | 22351 |
Nanthi Bolan | 83 | 550 | 31030 |
Oene Oenema | 80 | 361 | 23810 |
Santosh Kumar | 80 | 1196 | 29391 |
Yueming Jiang | 79 | 452 | 20563 |
Denis A. Angers | 76 | 256 | 19321 |
Tong Zhu | 72 | 472 | 18205 |
Christophe Lacroix | 69 | 353 | 15860 |