Degradation of biodegradable plastics by phytopathogenic smut fungi.

IF 1.4 4区生物学 Q4 MYCOLOGY

Mycoscience Pub Date : 2025-02-05 eCollection Date: 2025-01-01 DOI:10.47371/mycosci.2024.12.002

Yuji Aoki, Eiji Tanaka

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引用次数: 0

Abstract

We evaluated biodegradable plastic (BP) degradation abilities of various smut fungi (Ustilaginomycotina), including 8 isolates from 6 species of Ustilaginales, 3 isolates from 2 species of Exobasidiales, 7 isolates from 5 species of Tilletiales, and 3 isolates from 3 species of Microbotryales belonging to the anther smut fungi (Pucciniomycotina). The BP-degrading abilities of these fungal isolates were compared to that of a known BP-degrader, Moesziomyces antarcticus JCM 10317. The BPs tested were polycaprolactone (PCL), polybutylene succinate adipate (PBSA), polybutylene succinate (PBS), and polylactic acid (PLA). BP-degrading ability was quantified by measuring the clear zones produced by fungi on BP-containing media at temperatures from 10 ℃ to 30 ℃. The experiments revealed 10 isolates from 7 species capable of degrading PBSA and PCL, and 7 isolates from 4 species capable of degrading PBS. No isolates degraded the PLA. Notably, the PBSA-degrading ability of one isolate of Ustilago trichophora was significantly higher than that of JCM 10317 at low temperature. However, JCM 10317 was superior at degrading PCL and PBS. Our results indicate that smut fungi are potentially valuable sources of isolates with superior BP-degrading ability.

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植物致病性黑穗病真菌对可生物降解塑料的降解。

研究了不同黑穗病真菌（Ustilaginomycotina）的生物降解塑料（BP）降解能力，包括6种黑穗病真菌（Ustilaginomycotina）的8个分离株、2种外生黑穗病真菌（Exobasidiales）的3个分离株、5种Tilletiales的7个分离株和3种Microbotryales属花药黑穗病真菌（puccininiomycotina）的3个分离株。这些真菌分离株的bp降解能力与已知的bp降解物Moesziomyces antarcticus JCM 10317进行了比较。测试的bp有聚己内酯（PCL）、己二酸丁二酸聚丁二酸（PBSA）、丁二酸聚丁二酸（PBS）和聚乳酸（PLA）。通过测量真菌在含bp培养基上在10 ~ 30℃温度下产生的透明区来量化bp降解能力。实验结果显示，从7个菌种中分离出10株能够降解PBSA和PCL，从4个菌种中分离出7株能够降解PBS。没有分离物降解PLA。值得注意的是，一株毛霉黑穗病菌在低温下对pbsa的降解能力显著高于JCM 10317。而JCM 10317对PCL和PBS的降解效果较好。我们的结果表明，黑穗病真菌是具有优越的bp降解能力的分离物的潜在有价值的来源。

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来源期刊

Mycoscience MYCOLOGY-

CiteScore

3.00

自引率

7.10%

发文量

审稿时长

3 months

期刊介绍： Mycoscience is the official English-language journal of the Mycological Society of Japan and is issued bimonthly. Mycoscience publishes original research articles and reviews on various topics related to fungi including yeasts and other organisms that have traditionally been studied by mycologists. The research areas covered by Mycoscience extend from such purely scientific fields as systematics, evolution, phylogeny, morphology, ecology, physiology, biochemistry, genetics, and molecular biology, to agricultural, medical, and industrial applications. New and improved applications of well-established mycological techniques and methods are also covered.