Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1139/cjm-2015-0657 |
Damage to Trichothecium roseum caused by sodium silicate is independent from pH | |
Niu, Li-li1,2; Bi, Yang1; Bai, Xiao-dong1; Zhang, Sheng-gui1; Xue, Hua-li1; Li, Yong-cai1; Wang, Yi1; Calderon-Urrea, Alejandro3 | |
通讯作者 | Bi, Yang |
来源期刊 | CANADIAN JOURNAL OF MICROBIOLOGY |
ISSN | 0008-4166 |
EISSN | 1480-3275 |
出版年 | 2016 |
卷号 | 62期号:2页码:161-172 |
英文摘要 | Trichothecium roseum is one of the most important postharvest pathogens in arid and semiarid regions. Sodium silicate (NaSi) and environmental pH have significant inhibitory effects on fungal growth. However, no study has addressed the relationship of NaSi and pH in combination and the effects on T. roseum. In this work, we showed that spore germination, germ tube elongation, and mycelial growth of T. roseum were significantly inhibited by various NaSi concentrations, which had corresponding increasing pHs. Furthermore, these NaSi solutions showed a much greater impact than did pH treatments alone. The pathogenicity of NaSi-treated conidia on a model assay (conidia-inoculated apple fruit) was dramatically reduced, whereas no changes of pathogenicity were evident for the corresponding pH (various sodium hydroxide (NaOH) solutions) treatments. Fluorescent microscopy, using propidium iodide staining, showed damage of the plasma membranes of T. roseum conidia treated with both NaSi and NaOH, although the damage was more severe with NaSi. Leakage of proteins and sugars was significantly higher in NaSi-treated and NaOH-treated conidia than in untreated controls. In addition, serious damage was observed in the conidia exposed to NaSi for longer periods of time. Ultrastructural observations showed that treatment with either NaSi or NaOH caused a plasmolysis state and disorganized organelles. Taken together the results show that NaSi has inhibitory effects on T. roseum and that the inherent higher pH of NaSi solutions of higher concentrations simply acts as an enhancer of the inhibitory effects of NaSi. |
英文关键词 | sodium silicate inhibition pathogenicity conidia ultrastructure |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000370050800007 |
WOS关键词 | POSSIBLE MECHANISMS ; INDUCED RESISTANCE ; POWDERY MILDEW ; HAMI MELONS ; COLLETOTRICHUM-GLOEOSPORIOIDES ; POSTHARVEST DISEASES ; FUSARIUM-SULPHUREUM ; ANTIFUNGAL ACTIVITY ; POTATO-TUBERS ; SALT STRESS |
WOS类目 | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Immunology ; Microbiology |
WOS研究方向 | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Immunology ; Microbiology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/191946 |
作者单位 | 1.Gansu Agr Univ, Coll Food Sci & Engn, Lanzhou 730070, Peoples R China; 2.Gansu Agr Univ, Coll Grassland Sci & Engn, Lanzhou 730070, Peoples R China; 3.Calif State Univ Fresno, Dept Biol, Fresno, CA 93711 USA |
推荐引用方式 GB/T 7714 | Niu, Li-li,Bi, Yang,Bai, Xiao-dong,et al. Damage to Trichothecium roseum caused by sodium silicate is independent from pH[J],2016,62(2):161-172. |
APA | Niu, Li-li.,Bi, Yang.,Bai, Xiao-dong.,Zhang, Sheng-gui.,Xue, Hua-li.,...&Calderon-Urrea, Alejandro.(2016).Damage to Trichothecium roseum caused by sodium silicate is independent from pH.CANADIAN JOURNAL OF MICROBIOLOGY,62(2),161-172. |
MLA | Niu, Li-li,et al."Damage to Trichothecium roseum caused by sodium silicate is independent from pH".CANADIAN JOURNAL OF MICROBIOLOGY 62.2(2016):161-172. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。