Title

花生種皮蠟質和角質層與黃麯黴侵染和產毒的關係

Translated Titles

Wax and Cuticle of Peanut Seed Coat in Relation to Infection and Aflatoxin Production by Asperillus flavus

Authors

梁炫強(Xuan-Qiang Liang);周桂元(Gui-Yuan Zhou);潘瑞熾(Rui-Chi Pan)

Key Words

花生 ; 黃麯黴毒素 ; 種皮 ; 蠟質 ; 角質層 ; Peanut ; Seed coat ; Aflatoxin ; Wax ; Cuticle

PublicationName

熱帶亞熱帶植物學報

Volume or Term/Year and Month of Publication

11卷1期(2003 / 03 / 01)

Page #

11 - 14

Content Language

簡體中文

Chinese Abstract

黃麴黴侵染花生的研究表明,種皮破損的黃麴黴毒素含量顯著高於種皮完整的,種皮對黃麴黴侵染和產毒起著重要的屏障作用。採用氯仿去除種皮蠟質,用KOH或角質酶去除種皮角質層後,種子黃麴黴感染率和黃麴黴毒素含量顯著提高。種皮蠟質和角質層同時去除的與種皮破損的黃麴黴感染率和毒素含量差異不顯著,表明種皮的抗性成份主要是蠟質和角質層。種皮蠟質含量測定和種皮表面掃描電鏡觀察表明,蠟質的含量和角質層的厚度與品種的抗性有關。抗性品種種皮蠟質含量顯著高於感病品種。種皮蠟質提取物在體外抑菌效果不顯著,說明蠟質的抗性作用主要是物理性阻止黃麴黴菌的穿透。

English Abstract

The effects of wax and cuticle of peanut seed coat on reducing the infection and aflatoxin production by Aspergillus flavus were studied. Experiments showed that when the wax on seed coat was removed with chloroform or/and cuticle removed with KOH (or cutinase), fungal infection rate and afiatoxin content in the seeds were significantly increased. Aflatoxin content in seeds with wounded seed coat was higher than that in intact seeds after being inoculated with A. flavus. Scanning electron microscopic observation on seed coat revealed that most of resistant seeds were rough in appearance and had adundant wax deposits on seed surfaces. It is indicated that the wax and cuticle play an important role in preventing fungal penetration.

Topic Category 生物農學 > 植物學
生物農學 > 生物環境與多樣性