Article
Agronomy
Cuicui Sun, Yan Huang, Sen Lian, Muhammad Saleem, Baohua Li, Caixia Wang
Summary: The study investigated the biocontrol efficacy of Meyerozyma guilliermondii Y-1 combined with melatonin (MLT) against apple gray mold caused by Botrytis cinerea. The combination significantly reduced decay incidence and lesion diameter, improved the ability to colonize in apple fruit, and increased defense-related enzyme activities and gene expression levels. The results suggest that the combined treatment may be a reliable alternative for controlling postharvest infection in apple fruit.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Yifei Wang, Jiahao Chen, Wenyi Bian, Xiaobo Yang, Lin Ye, Shoukui He, Xiaoqiu Song
Summary: In this study, salicylic acid (SA) was encapsulated in beta-cyclodextrin (beta-CD) to form microcapsules, which showed effective inhibition against blue mold caused by Penicillium expansum in apple fruit. The microcapsules not only enhanced the antifungal activity of salicylic acid, but also improved the quality attributes of the fruit.
Article
Biotechnology & Applied Microbiology
Jun Guo, Xue Zhang, Mei Zhang, Shanwei Zhou, Xiaoyang Luo, Jifeng Liu, Jian Liu, Jianhua Gao, Xin Zhao
Summary: The external environment and yeast's inherent physiological characteristics are important factors influencing the biocontrol efficacy of antagonistic yeast. This study investigated the effect and mechanism of calcium ascorbate (Ca ascorbate) on enhancing the biocontrol effectiveness of Meyerozyma guilliermondii through transcriptome sequencing and analysis of yeast cells' physiological and biochemical activity. The results showed that yeast induced by 0.2 g/L Ca ascorbate effectively inhibited gray decay compared to the control and other induced groups. Transcriptome sequencing revealed that the differentially expressed genes (DEGs) induced by Ca ascorbate were mainly involved in cellular processes, metabolism, antioxidation, and pathways such as ribosome and cell cycle. Ca ascorbate induction upregulated the expression of genes related to ribosome synthesis, growth and metabolism, and antioxidation. The enhanced yeast proliferation and colonization, improved nutrient utilization, enhanced cell homeostasis and cell wall structure, and improved environmental adaptability were consistent with the transcriptomic data. Additionally, the presence of Ca2+ had a synergistic effect on yeast's physiological and antioxidant activities, promoting the improvement of biocontrol efficacy.
BIOLOGICAL CONTROL
(2023)
Article
Energy & Fuels
Abdel-Naser A. Zohri, Rehab M. F. Kassim, Sedky H. A. Hassan
Summary: This study investigated the effect of methylene blue as an exogenous electron mediator on the efficiency of electricity generation in a microbial fuel cell using sugarcane molasses as a substrate. The results showed that methylene blue enhanced the power generation and significantly improved COD removal.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Agronomy
Yanfei Li, Jinglin Zhang, Nana Ji, Xiaoxia Zuo, Xueyin Ru, Peng Jin, Kaituo Wang, Yonghua Zheng
Summary: Antagonistic yeast induces postharvest disease resistance and delays fruit decay. Pichia guilliermondii application promotes SA accumulation and upregulates the expression of SA synthesis-related genes and defense genes in peaches. The transcription factor PpMYB44 is induced by fungal disease and mediates SA synthesis by binding to the promoters of PpPAL1 and PpSARD1.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Yanfei Li, Nana Ji, Xiaoxia Zuo, Jinglin Zhang, Yanyu Zou, Xueyin Ru, Kaituo Wang, Peng Jin, Yonghua Zheng
Summary: Antagonistic yeasts, such as Pichia guilliermondii, can enhance the disease resistance of harvested fruit by regulating the transcription of lignin biosynthesis genes. In this study, P. guilliermondii treatment increased the activities and expression of C4H, CAD, and POD enzymes, as well as the lignin content in peach fruit infected with R. stolonifer. Transcriptome analysis revealed that PpMYB306, a MYB transcription factor, negatively regulated the expression of lignin biosynthesis genes by binding to their promoters. Overexpression of PpMYB306 decreased lignin content and increased the susceptibility of peach fruit to soft rot. Overall, these findings highlight the importance of P. guilliermondii treatment in enhancing disease resistance in peach fruit through the regulation of lignin biosynthesis.
BIOLOGICAL CONTROL
(2023)
Article
Agriculture, Multidisciplinary
Canying Li, Lei Sun, Jie Zhu, Xiaonan Ji, Rui Huang, Yiting Fan, Mi Guo, Yonghong Ge
Summary: Trehalose treatment reduces lesion diameter in apples inoculated with Penicillium expansum and improves tolerance by regulating starch, sorbitol, and energy metabolism.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Horticulture
Xiaoyun Zhang, Hongyao Zhou, Yuqi Yao, Junyi Wang, Xiangyu Gu, Bo Li, Lina Zhao, Hongyin Zhang
Summary: The study found that Meyerozyma guilliermondii could enhance the disease resistance of postharvest broccoli by increasing energy production and supply, and synthesizing resistant compounds, thereby reducing natural decay disease.
SCIENTIA HORTICULTURAE
(2022)
Article
Biotechnology & Applied Microbiology
Lina Zhao, Junjia Han, Bo Li, Xiaoyun Zhang, Xiangyu Gu, Qiya Yang, Kaili Wang, Hongyin Zhang
Summary: The study revealed that the antagonistic efficacy of M. guilliermondii combined with AOS in controlling postharvest diseases of pears is enhanced through various mechanisms, including promoting signal transduction, upregulating disease-resistance genes, improving antioxidant stress, and increasing expression levels of resistance-related genes. The combination further improves resistance by promoting synthesis of resistant substances, inducing upregulation of resistance-related genes, enhancing signal transduction, regulating expression levels of resistance-related genes, and maintaining cell wall strength.
BIOLOGICAL CONTROL
(2022)
Article
Horticulture
Fayz A. Abdel-Rahman, Gehan A. Monir, Mabrouk S. S. Hassan, Yosra Ahmed, Mohamed H. Refaat, Ismail A. Ismail, Hoda A. S. El-Garhy
Summary: The study demonstrated that chitosan nanoparticles were more effective in controlling blue mold disease of apples compared to raw materials, while maintaining fruit quality parameters and increasing the expression levels of six defense-related genes.
Article
Agronomy
Yanfei Li, Nana Ji, Xiaoxia Zuo, Yuanyuan Hou, Jinglin Zhang, Yanyu Zou, Peng Jin, Yonghua Zheng
Summary: The study showed that Pichia guilliermondii induced disease resistance in peach fruit against soft rot caused by Rhizopus stolonifer by activating the phenylpropanoid pathway.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2023)
Article
Microbiology
Elaine Cristina Francisco, Felipe de Camargo Ribeiro, Joo Nobrega Almeida Junior, Diego Betto Pedoni, Daniel Archimedes da Matta, Maribel Dolande, Analy Salles de Azevedo Melo, Ricardo Ferreira Lima, Valerio Rodrigues Aquino, Dora E. Corzo-Leon, Jeannete Zurita, Jorge Alberto Cortes, Marcio Nucci, Arnaldo Lopes Colombo
Summary: The Meyerozyma guilliermondii species complex in Latin America has shown low susceptibility to antifungal drugs, with increased isolation of less common species causing candidemia.
MICROBIOLOGY SPECTRUM
(2023)
Article
Microbiology
Elaine Cristina Francisco, Felipe de Camargo Ribeiro, Joao Nobrega Almeida, Diego Betto Pedoni, Daniel Archimedes da Matta, Maribel Dolande, Analy Salles de Azevedo Melo, Ricardo Ferreira Lima, Valerio Rodrigues Aquino, Dora E. Corzo-Leon, Jeannete Zurita, Jorge Alberto Cortes, Marcio Nucci, Arnaldo Lopes Colombo
Summary: Based on sequencing and antifungal susceptibility testing, the most prevalent species within the M. guilliermondii complex was M. guilliermondii sensu stricto, followed by Meyerozyma caribbica and Meyerozyma carpophila. The study also identified a newly emerged clade 2 species of M. guilliermondii with lower susceptibility to triazoles.
MICROBIOLOGY SPECTRUM
(2023)
Review
Microbiology
Reza Ghasemi, Ensieh Lotfali, Kamran Rezaei, Seyed Ataollah Madinehzad, Mahdi Falah Tafti, Nikta Aliabadi, Ebrahim Kouhsari, Mahsa Fattahi
Summary: Meyerozyma guilliermondii is a microorganism that can cause serious infections and its incidence has increased in recent years. Reduced sensitivity to conventional antifungals and drug resistance have raised concerns among researchers.
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2022)
Article
Plant Sciences
B. A. A. Al-Rahbi, A. M. Al-Sadi, I. H. Al-Mahmooli, S. S. Al-Maawali, N. M. T. Al-Mahruqi, R. Velazhahan
Summary: This study isolated and identified Alternaria spp. strains causing fruit rot of strawberries, and found that the antagonistic yeast M. guilliermondii can effectively control fruit rot disease, showing potential as a biofungicide for postharvest treatment.
AUSTRALASIAN PLANT PATHOLOGY
(2021)