トリップスの防御:ラクトンの果実性を禁止する

D F Howard, M S Blum, H M Fales

Science (New York, N.Y.)

|April 15, 1983

まとめ

Thrips Bagnalliella yuccaeは,ガンマデカラクトンを含む防御性内液を排出する. この果実の香りのオロモンは捕食者を遠ざけ,トリップスの集積を助ける可能性がある.

科学分野:

エントモロジーエントモロジー学
化学エコロジー化学エコロジー
昆虫の行動昆虫の行動

背景:

昆虫は,捕食者に対する様々な防御メカニズムを利用しています.
化学的なコミュニケーションは,昆虫の相互作用において重要な役割を果たします.

研究の目的:

Bagnalliella yuccae.の門液の排泄による防御機能を調査する.
防衛を担当する液の化学成分を特定するために.

主な方法:

B. yuccae.における門液の排泄行動の観察
特定の化合物を特定するために,経排泄物の化学分析.
肉食動物と獲物の相互作用測定は,排泄物の排斥特性をテストするために行われます.

主要な成果:

B. yuccaeは,防御戦略として,上向きの腹部から門液を排出することが観察されました.
アナル排泄液の主な成分はガンマ-デカラクトンと特定されました.
ガンマデカラクトンは,潜在的な捕食者に対する排斥効果を示し,アロモンとしての役割を示した.

結論:

門液の排泄は,B. yuccaeの重要な防御メカニズムです.
ガンマデカラクトンは化学的抑止剤として作用し,サリプスを捕食者から守る.
化学的防御は,トリップス集団で観察された成功した集積行動に寄与する可能性が高い.

さらに関連する動画

07:27

Isolation of Mammary Epithelial Cells from Three-dimensional Mixed-cell Spheroid Co-culture

Published on: April 30, 2012

08:56

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats

Published on: April 7, 2023

関連する概念動画

02:26

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.

01:26

Defense Mechanism Against Infection

Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...

01:18

Surface Membrane Barriers

The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...

01:31

Defense Against Bacterial Pathogens

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...

01:22

Birth Control Methods

Vasectomy is a surgical form of male sterilization that involves severing and sealing the vasa deferentia, preventing sperm from mixing with semen during ejaculation. Because a vasectomy does not impact the testes' ability to produce testosterone, hormone levels, libido, and sexual function generally remain unchanged. While vasectomy is highly effective in preventing pregnancy, with a success rate near 99.85%, rare cases of recanalization (spontaneous reconnection) can occur. Although vasectomy...

01:22

Probiotics

Probiotics are live, non-pathogenic microorganisms that confer health benefits by modulating the gut microbiota. The human gastrointestinal tract harbors a complex microbial ecosystem, and the balance of this microbiota is crucial for digestive and systemic health. Among the most extensively studied and utilized probiotics are species formerly classified within the genera Lactobacillus and Bifidobacterium. These organisms not only naturally colonize the human gut but are also consumed through...

関連する実験動画