Xenofagie
biologisch proces
Xenofagie (van het Grieks: xenos, "vreemd" en fagein, "eten") en allotrofie (van het Grieks: alloi, "ander" en trophein, "voedingsstof") zijn grote veranderingen in vastgestelde patronen van biologische consumptie, door individuen of groepen.
- In de entomologie is xenofagie een categorische verandering in de voeding, zoals een herbivoor die vleesetend wordt of een roofdier dat necrofagisch wordt, of een omkering van dergelijke veranderingen.[1] Allotrofie is een minder extreme verandering in het voedingspatroon, zoals in het geval van het lieveheersbeestje met zeven vlekken dat een voedingspatroon van bladluizen soms bijvult met stuifmeel.[2] Er zijn verschillende duidelijke gevallen van allotrofie bij de Israëlische Longitarsus-kevers.[3]
- In de microbiologie is xenofagie het proces waarbij een cel autofagie richt op pathogenen, zoals gedocumenteerd in de studie van antivirale afweer.[4] Cellulaire xenofagie is een aangeboren onderdeel van afweerreacties,[5] hoewel het algemene belang van xenofagie nog niet zeker is.[6][7][8]
- In de ecologie komt allotrofie ook tot uiting in eutrofiëring, aangezien het een verandering is in de voedingsbron, zoals een aquatisch ecosysteem[9][10][11] dat nieuwe voedingsstoffen begint te ontvangen door drainage van het omringende land.[12]
Bronnen, noten en/of referenties
- ↑ Insects and plants: parallel evolution and adaptations - Page 29 Pierre Jolivet - 1986 "Xenophagy is a complete change in diet, the herbivorous diet becoming carnivorous or vice versa, predators becoming necrophagous, coprophages becoming necrophagous or carnivorous, and so on."
- ↑ Sven Erik Jørgensen Encyclopedia of Ecology: P-S Page 2924 2008 "Allotrophy is also widespread among insects, an example being the 7-spot ladybird, whose diet is mainly based on aphids (plant lice) but often includes pollen, too."
- ↑ Israel journal of entomology Volumes 12-14 - Page 138 Entomological Society of Israel - 1978 "Jolivet (1953, 1967, and in litt., 1976) has used the term allotrophy for the cases where a beetle is found to feed on a completely unrelated host from its normally ... There are several apparent cases of allotrophy in Israeli Longitarsus (Table 1). "
- ↑ Fernando E. Vega, Harry K. Kaya Insect Pathology Page 470 - 2012 "The process whereby the cell directs its autophagy machinery toward killing pathogens is termed xenophagy (Levine, 2005). Xenophagy is thought to play a role in antiviral defenses (Sabin et al., 2010), although there are few data on these interactions. While the specific molecules controlling this process are poorly understood, they are expected to share similarities ..."
- ↑ Diane Elizabeth Alexander, Multiple functions of the herpes simplex virus type 1 Page 86 Washington University in St. Louis - 2008 "Xenophagy is proving to be an important component of the innate immune response to viral infections. Neuronal expression of the mammalian autophagy promoting protein Beclin 1 protects mice against lethal Sindbis virus encephalitis "
- ↑ John P. Greer, John Foerster, George M. Rodgers Wintrobe's Clinical Hematology Volume 2 - Page 271 2008 "The general importance of xenophagy is not yet certain. Among the key components that are transferred to the phagosome and are critical in creating an antimicrobial environment are the vacuole ATPase, NOS2, and phagocyte oxidase ..."
- ↑ Issues in Biological, Biochemical, and Evolutionary Sciences "We also find that the invasive efficiency of group A Streptococcus into cells is not altered by knockdown of VAMP8 or Vti1b, whereas cellular bactericidal efficiency is significantly diminished, indicating that xenophagy is functionally impaired."
- ↑ Baruch Velan, Avigdor Shafferman, Arie Ordentlich -The Challenge of Highly Pathogenic Microorganisms Page 31 2010 "Furthermore, studies have shown the ability of Y. pestis to survive in macrophages activated with the cytokine IFNγ. Some vacuolar pathogens appear to co-opt the process of autophagy for survival in host cells. Alternatively, xenophagy is an ..."
- ↑ Eutrophication: causes, consequences, correctives Page 53 National Academy of Sciences (U.S.) - 1969 "The allotrophy of a lake indicates the intensity of organic supply from its environment. According to the first statement, trophy should not be equated with the status of nutrient conditions, as advocated by Findenegg (1955)."
- ↑ Handbook of Inland Aquatic Ecosystem Management - Page 16 Sven Erik Jorgensen, Jose Galizia Tundisi, Takako Matsumura Tundisi - 2012 (L 1 ) “Allotrophy” (heterotrophic pathway) “Autotrophy” (autotrophic pathway)
- ↑ Productivity of world ecosystems Page 90 International Council of Scientific Unions. Special Committee for the International Biological Programme - 1975 "DEGREE OF ALLOTROPHY IN STREAMS The role of allochthonous organic matter in stream economy was ... However, the measurement of the degree of allotrophy has been attempted only recently and by a few stream ecologists.
- ↑ Academic Press Dictionary of Science and Technology- Page 80 Christopher G. Morris, Academic Press - 1992 "Thus, allotroph, allotrophy. allotrophic lake Ecology, a lake that receives organic material by drainage from the surrounding land. allotropic relating to or characterized by allotropy. Also, ALLOTROPHIC. allotropy Chemistry, the property ..."