• defense
  • The Princeton researchers sequenced the expression of a poison-resistant protein in insect species that feed on plants such as milkweed and dogbane that produce a class of steroid-like cardiotoxins called cardenolides as a natural defense. (princeton.edu)
  • Fourteen of these species have evolved a nearly identical characteristic due to one external influence - they feed on plants that produce cardenolides, a class of steroid-like cardiotoxins that are a natural defense for plants such as milkweed and dogbane. (princeton.edu)
  • Biolib Fauna europaea Inaturalist Lygaeoidea Jean-Claude Stretto, Gérard Labonne, Gérard Duvallet, François Dusoulier Caenocoris nerii (Germar, 1847) à la conquête de la France méditerranéenne (Hemiptera Heteroptera Lygaeidae) Carl W. Schaefer,Antonio Ricardo Heteroptera of Economic Importance Animalandia (in Spanish) DL Evans Cardenolides in the Defense of Caenocoris nerii (Hemiptera) S. Bettini Arthropod Venoms Euw, J. von. (wikipedia.org)
  • cerberin
  • citation needed] The cardenolide substructure to which the sugar is attached has also been independently characterised, and can be referred to as digitoxigenin (see image), hence, cerberin is, synonymously, (L-2'-O-acetylthevetosyl)digitoxigenin. (wikipedia.org)
  • In indirect cases, human consumption of crab, where the crustacean had earlier consumed plants producing cerberin or related cardenolides, fatalities are also known. (wikipedia.org)
  • cyanogenic
  • puberulifolius Dhetchuvi & Diafouka - central Africa (Zaire, Gabon, Congo-Brazzaville, Cameroon, Central African Republic) Phytokemikal screening of Thaumatococcus Danielli Phytochemical Observation Alkaloids Present Flavonoids Present Tannins Present Saponins Present Anthraquinones Present Anthocyanosides Present Cyanogenic glycosides Absent Cardiac glycosides Cardenolides and steroidal nucleus present The most popular use of T. daniellii is as sweetener. (wikipedia.org)
  • Cyanogenic glycosides produce cyanide and are extremely poisonous.Cardenolides have a bitter taste and influence NA+/K+ activated ATPases in human heart, they may slow or strengthen the heart rate. (wikipedia.org)
  • poisonous
  • This presentation will discuss several toxins (poisonous substances occurring naturally) that represent potential hazards to companion animals. (vin.com)
  • steroid
  • subscription required] cardenolides are 23-carbon steroids with methyl groups at positions 10 and 13 of the steroid ring system, and the appended five-membered butenolide-type of lactone at C-17. (wikipedia.org)
  • naturally
  • A study of wild California sea lions provides the first neurobiological evidence for how a naturally occurring algal toxin affects both the brains and behavior of the animals, leading to significant deficits in spatial memory. (blogspot.in)
  • protein
  • The toxin kills by binding to and disabling a protein shared by all complex animals and needed for transmitting nerve impulses and other key functions. (philly.com)
  • biological
  • Biological pest control The plant's toxins have tested in experiments for uses in biological pest control. (wikipedia.org)
  • Our research provides a way to model the behavioral and biological effects of this toxin in a large-brain mammal," Cook says. (blogspot.in)
  • found
  • Vomitoxin or deoxynivalenol has been found in dog foods containing corn, wheat, barley or oats contaminated with toxin-producing Fusarium spp. (vin.com)
  • body
  • Oncopeltus fasciatus has been shown to possess a specialized, double layered epidermis forming the so-called dorsolateral space where cardenolides absorbed into the body are concentrated and stored. (royalsocietypublishing.org)
  • chemical
  • The altered, toxin-resistant gene was more active in the gut, where cells would have to deal directly with the chemical assault. (philly.com)
  • similar
  • These cardenolides are not destroyed by drying or heating and they are very similar to digoxin from Digitalis purpurea. (wikipedia.org)
  • They are proteinaceous toxins produced by bacteria to inhibit the growth of similar or closely related bacterial strain(s). (wikipedia.org)