相关实验视频

Updated: Jul 12, 2026

Bioassay-Guided Identification of Natural Products for Biocontrol by Thin Layer Chromatography-Direct Bioautography
04:52

Bioassay-Guided Identification of Natural Products for Biocontrol by Thin Layer Chromatography-Direct Bioautography

Published on: July 26, 2024

一种种子捕食者的生化机制:L-canaline排毒

G A Rosenthal, D L Dahlman, D H Janzen

    Science (New York, N.Y.)
    |November 3, 1978
    PubMed
    概括

    虫Caryedes brasiliensis通过将其转化为L-canaline,从Dioclea megacarpa的种子中排毒有毒的L-canavanine. 这一过程允许甲虫利用种子.

    更多相关视频

    Assessing Cytotoxicity of Metabolites of Typical Triazole Pesticides in Plants08:22

    Assessing Cytotoxicity of Metabolites of Typical Triazole Pesticides in Plants

    Published on: December 22, 2023

    Measuring Rates of Herbicide Metabolism in Dicot Weeds with an Excised Leaf Assay10:49

    Measuring Rates of Herbicide Metabolism in Dicot Weeds with an Excised Leaf Assay

    Published on: September 7, 2015

    相关概念视频

    Enhanced Elimination of Poison01:26

    Enhanced Elimination of Poison

    Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
    Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
    Renal excretion is the...
    Overview of Metabolism01:40

    Overview of Metabolism

    Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
    Plant Metabolism
    Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
    Drug Elimination: Non-Renal Routes01:23

    Drug Elimination: Non-Renal Routes

    The liver plays a pivotal role in eliminating drugs and their metabolites, primarily through a process known as biliary excretion. This process involves the hepatocytes, the primary cells in the liver that generate bile. A range of transporters actively expels polar drugs or hydrophilic drug metabolites into the bile, which transports the drugs and metabolites into the small intestine. From here, they are eventually expelled from the body through feces. In some instances, the original drug or a...
    Predator-Prey Interactions02:39

    Predator-Prey Interactions

    Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.Although predation is commonly associated with carnivory, for...
    Drug Metabolism: Phase II Reactions01:14

    Drug Metabolism: Phase II Reactions

    Phase II reactions are essential for the detoxification and elimination of drugs from the body. These reactions involve the conjugation of parent drugs or their phase I metabolites with endogenous molecules, resulting in more hydrophilic drug conjugates. The primary conjugation reactions in this phase are sulfation and glucuronidation. Both sulfation and glucuronidation typically produce biologically inactive metabolites. However, in some cases involving prodrugs, active metabolites may be...
    Defenses Against Pathogens and Herbivores02:26

    Defenses Against Pathogens and Herbivores

    Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.