相关实验视频

Updated: Jun 9, 2025

Measuring Volatile and Non-volatile Antifungal Activity of Biocontrol Products

Measuring Volatile and Non-volatile Antifungal Activity of Biocontrol Products

Published on: December 5, 2020

酵母溶于细胞壁的多糖在果实收获后通过抵抗反应控制的积极影响

Yalan Wu¹, Nan Zhao¹, Yiwei Jiang¹

¹National Engineering Laboratory of Intelligent Food Technology and Equipment, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.

International journal of biological macromolecules

|October 23, 2024

概括

克劳维罗米塞斯马克西安纳斯溶性细胞壁多糖 (SCWP) 增强了梨果对真菌腐烂的抵抗力. 这种酵母衍生的SCWP为延长水果的保质期和防止收获后损失提供了有希望的解决方案.

科学领域:

食品科学食品科学食品科学
菌类学菌类学是指菌类学.
生物化学生化学

背景情况:

酵母细胞壁中的多糖具有多样化的生物活性.
有限的研究存在于它们在收获后果实保存中的使用.
虫 (Penicillium expansum) 导致梨果在收获后发生显著的腐烂.

研究的目的:

评估Kluyveromyces marxianus可溶性细胞壁多糖 (SCWP) 在防止梨果中的Penicillium expansum感染方面的有效性.
为了比较K. marxianus SCWP与Saccharomyces cerevisiae SCWP的有效性.
阐明K. marxianus SCWP诱导的耐药性背后的机制.

主要方法:

用K. marxianusSCWP对梨果进行处理.
用Penicillium expansum进行免疫接种.
对水果耐药性,SCWP组成,氧化突发,基因表达和酶活性进行分析.
与S. cerevisiaeSCWP进行比较.

主要成果:

与S. cerevisiae SCWP相比,K. marxianus SCWP显著改善了梨果对P. expansum的抵抗力.
K. marxianus SCWP 呈现出独特的曼南结构,侧链较短,表面较粗.
机制包括氧化爆发,增强抗氧化基因表达和防御酶活性.

结论:

K. marxianus SCWP是一种强大的药物,可以增强梨果对收获后真菌腐烂的抵抗力.
这种酵母衍生的多糖体显示出作为天然防腐剂的潜力,可以延长水果的保质期.
进一步的研究支持其在创新的食品保存策略中的应用.

关键词:

诱导疾病耐药性的诱导.克鲁伊维罗米塞斯马克西安纳斯 (Kluyveromyces marxianus) 是一个植物.曼南曼南是什么意思曼南曼南收获后的疾病控制可溶性细胞壁多糖化物.

更多相关视频

Double-Staining Method to Detect Pectin in Plant-Fungus Interaction

Double-Staining Method to Detect Pectin in Plant-Fungus Interaction

Published on: February 4, 2022

Identification of Growth Inhibition Phenotypes Induced by Expression of Bacterial Type III Effectors in Yeast

Identification of Growth Inhibition Phenotypes Induced by Expression of Bacterial Type III Effectors in Yeast

Published on: March 30, 2010

相关概念视频

Yeast Signaling

Yeast Signaling

Yeasts are single-celled organisms, but unlike bacteria, they are eukaryotes (cells with a nucleus). Cell signaling in yeast is similar to signaling in other eukaryotic cells. A ligand, such as a protein or a small molecule released from a yeast cell, attaches to a receptor on the cell surface. The binding stimulates second-messenger kinases to activate or inactivate transcription factors that further regulate gene expression. Many of the yeast intracellular signaling cascades have similar...

Cellulose and Pectic Polysaccharides

Cellulose and Pectic Polysaccharides

Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...

Plant Cell Wall

Plant Cell Wall

The plant cell wall gives plant cells shape, support, and protection. As a cell matures, its cell wall specializes according to the cell type. For example, the parenchyma cells of leaves possess only a thin, primary cell wall.

Fungal Group Zygomycota

Fungal Group Zygomycota

Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...