西日本の照葉樹林におけるイノシシ（<i>Sus scrofa</i>）のタンニン結合性唾液タンパク質産生量の季節変化

DOI

書誌事項

タイトル別名
  • Seasonal changes in production of tannin-binding salivary proteins by wild boar (<i>Sus scrofa</i>) inhabiting evergreen forest in western Japan

抄録

<p>Wild boar (Sus scrofa) prefer to feed on hard masts, but some hard mast species contain tannins which are astringent substances used as defensive chemicals. Tannins have negative effects on consumers, such as decreased protein digestibility owing to their astringent properties. As a defense mechanism against tannins, pigs (S. s. domesticus) secrete proline-rich proteins (PRPs) in their saliva which bind to tannins. However, it remains unclear how well PRPs bind to hydrolyzable tannins in hard masts. We analyzed PRPs extracted from wild boar parotid glands and tannins extracted from Quercus serrata acorns and found that the relative binding affinity of PRPs to the hydrolyzable tannins was 1.61, which was 2.5 times higher than that of bovine serum albumin. The amount of chestnut (Castanea crenata) and Q. serrata hard mast consumed positively affected PRP production per total parotid gland, whereas the amount of Castanopsis cuspidata acorns and bamboo shoots consumed negatively affected PRP production. Wild boar may adjust their PRP production in response to the opportunity to consume tannin-containing hard masts.</p>

収録刊行物

  • 哺乳類科学

    哺乳類科学 62 (2), 121-132, 2022

    日本哺乳類学会

キーワード

詳細情報 詳細情報について

  • CRID
    1390011550986153472
  • DOI
    10.11238/mammalianscience.62.121
  • ISSN
    1881526X
    0385437X
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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