Article
Multidisciplinary Sciences
Sidra Zahoor, Rabia Naz, Rumana Keyani, Thomas H. Roberts, Muhammad N. Hassan, Humaira Yasmin, Asia Nosheen, Saira Farman
Summary: This study isolated multiple bacterial strains from the root-adhering soil of quinoa seedlings with potential for promoting plant growth and suppressing diseases. Among these strains, Bacillus licheniformis and Bacillus pumilus showed the most effective activities in promoting tomato plant growth and reducing disease severity caused by Alternaria alternata infection.
SCIENTIFIC REPORTS
(2022)
Article
Biotechnology & Applied Microbiology
Shida Ji, YiBo An, Huifang Zhang, Yucheng Wang, Zhihua Liu
Summary: Trichoderma can improve plant resistance to fungal pathogens through various means, with the mixture of TroT7 and ThaT2 significantly inhibiting the growth of several common fungal pathogens. This mixed biofertilizer also promotes lateral root growth of apple trees and soil metabolic processes, increasing the availability of nutrients in soil.
BIOLOGICAL CONTROL
(2021)
Article
Microbiology
Jesse John Sakiyo, Aron Nemeth
Summary: This study investigated the potential of biosurfactants produced by three bacilli as a biocontrol agent against Alternaria alternata on beans. The results showed that these biosurfactants effectively inhibited the growth and reproduction of A. alternata without any negative effects on the growth and health parameters of the beans.
Article
Biotechnology & Applied Microbiology
Zhongyu Xie, Miaomiao Li, Dongkun Wang, Fenglong Wang, Hong Shen, Guangjun Sun, Chao Feng, Xiaoqiang Wang, Dexin Chen, Xianchao Sun
Summary: The bacterium Bacillus siamensis LZ88 showed strong antifungal activity against Alternaria alternata, controlling mycelial growth and spore production through the secretion of protein-like antifungal metabolites and volatile organic compounds. This strain also induced plant basal immunity by increasing the expression of defense-related enzymes in tobacco leaves, effectively reducing the occurrence and severity of tobacco brown spot disease in greenhouse experiments.
BIOLOGICAL CONTROL
(2021)
Article
Biotechnology & Applied Microbiology
L. P. Prendes, M. G. Merin, V. G. L. Zachetti, A. Pereyra, M. L. Ramirez, V. Morata de Ambrosini
Summary: Temperature has a significant impact on biocontrol effectiveness against Alternaria alternata growth and mycotoxin production. Among the antagonistic yeasts evaluated, Metschnikowia sp. strains are good candidates for a biofungicide against A. alternata due to their consistent effectiveness at different temperatures.
JOURNAL OF APPLIED MICROBIOLOGY
(2021)
Article
Agronomy
Suya Huang, Zhaohui Jia, Hangfei Li, Shuting Zhang, Junying Shen, Yunpeng Gai, Chen Jiao, Xuepeng Sun, Shuo Duan, Min Wang, Haijie Ma
Summary: This study summarizes the important advances in the pathogenic mechanism of Alternaria brown spot disease, revealing that ACT-toxin shows different virulence levels on different citrus species, and the ACTT5 gene plays a crucial role in the pathogenicity of the disease.
Article
Microbiology
Wenzhi Li, Youhua Long, Feixu Mo, Ran Shu, Xianhui Yin, Xiaomao Wu, Rongquan Zhang, Zhuzhu Zhang, Linan He, Tingting Chen, Jia Chen
Summary: In this study, the antagonistic fungus Fusicolla violacea J-1 showed high antifungal activity against Alternaria alternata, inhibiting its growth and conidia germination. The antagonistic fungus J-1 not only damaged the integrity of cell membranes but also increased the activity of chitinase and beta-1,3-glucanase enzymes in A. alternata, indicating serious damage to the cell wall. Additionally, J-1 and its aseptic filtrate exhibited broad-spectrum antifungal activity against several other fungal phytopathogens.
Article
Biotechnology & Applied Microbiology
Qiuyan Bi, Pengfei Liu, Jie Wu, Fen Lu, Xiuying Han, Wenqiao Wang, Jianjiang Zhao
Summary: This study confirmed the antifungal activity of B. tequilensis against A. alternata and its biocontrol effect on pear black spot. Transcriptomic and metabolomic analysis revealed the molecular pathways involved in the interaction between B. tequilensis and A. alternata. The key genes and metabolites related to glycolysis, citric acid cycle, oxidative phosphorylation, pentose phosphate pathway, pyrimidine metabolism, and cell cycle were identified.
BIOLOGICAL CONTROL
(2023)
Article
Microbiology
Pengfei Guo, Fengrui Yang, Shuhong Ye, Jing Li, Fengjun Shen, Yan Ding
Summary: This study identified the antifungal metabolites produced by Bacillus altitudinis Q7 as lichenysin and investigated its antifungal activity and action mechanism. Lichenysin inhibited Alternaria alternata by altering the permeability of the cell membrane, leading to the release of proteins and nucleic acids from the cytoplasm. The stability of lichenysin in extreme environments suggests its potential as a biological control agent against A. alternata.
JOURNAL OF BASIC MICROBIOLOGY
(2023)
Article
Microbiology
Lei Li, Haijie Ma, Fang Zheng, Yanan Chen, Meiqin Wang, Chen Jiao, Hongye Li, Yunpeng Gai
Summary: The transcription regulator ACTR plays an essential role in regulating the biosynthesis of ACT toxin in the citrus fungal pathogen Alternaria alternata, specifically by mediating the expression of the ACT toxin synthesis gene ACTS4. This regulatory pathway is crucial for both ACT toxin production and pathogenicity in A. alternata's tangerine pathotype.
MICROBIOLOGICAL RESEARCH
(2021)
Article
Microbiology
Jai Prakash, Naveen Kumar Arora
Summary: This study demonstrated that Bacillus safensis STJP isolated from the rhizospheric soil of Stevia rebaudiana can produce antifungal volatile organic compounds (AVOC) which exhibit strong biocontrol activity against the phytopathogen Alternaria alternata. The AVOC from B. safensis STJP inhibit conidia germination, mycelium growth, and rupture hyphae of the fungus, ultimately preventing the growth of A. alternata. Identification of bacterial metabolites through various techniques such as TLC, FTIR spectroscopy and GC-MS analysis showed that certain compounds have the ability to inhibit the growth and reproduction of A. alternata, suggesting the potential of AVOC-producing B. safensis as a green fungicide and the development of next generation biopesticides.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2021)
Article
Agronomy
Vladimir Mironov, Anna Shchelushkina, Olga Selitskaya, Yury Nikolaev, Alexander Merkel, Shenghua Zhang
Summary: This study examines the impact of introducing autochthonous compost species on the phytopathogen-suppressive and phytostimulation activity of composts. The results show that the introduction of autochthonous bacterial-fungal composition can improve the fertilizing properties of compost and exhibit strong inhibitory activity against fungal phytopathogens.
Article
Plant Sciences
Jai Prakash, Dilfuza Egamberdieva, Naveen Kumar Arora
Summary: The excessive use of chemicals in agroecosystems by farmers has negative effects on soil quality, soil ecology, and human health. This study focused on utilizing a Bacillus safensis strain STJP and mycorrhiza Glomus fasciculatum ABTEC to develop a whey-based bioformulation for enhancing the growth, nutrient uptake, soil properties, stevioside content, and steviol glycosides (SGs) biosynthesis in Stevia rebaudiana. The combined treatment of the bioformulation and mycorrhiza showed significant improvements in the growth parameters, chlorophyll content, protein content, flavonoid content, carbohydrate content, antioxidant activity, stevioside content, and mineral uptake in the plants. The results suggest that the application of the bioformulation and mycorrhiza provides an eco-friendly and sustainable solution for improving the yield and quality of Stevia rebaudiana.
Article
Plant Sciences
Swapan K. Ghosh, Sujoy Pal, Subhankar Banerjee
Summary: The study identified the causal organism of Bacopa monnieri leaf blight disease as Alternaria alternata. Disease surveys in West Bengal showed varying disease intensity, and the use of T. asperellum or T. harzianum biocontrol agents effectively controlled the pathogen and promoted plant growth.
JOURNAL OF APPLIED RESEARCH ON MEDICINAL AND AROMATIC PLANTS
(2022)
Article
Horticulture
Neslihan Dikbas, Sevda Ucar, Elif Tozlu, Merve Senol Kotan, Recep Kotan
Summary: Developing alternative or complementary control methods to reduce the use of hazardous chemicals in agriculture is crucial. Biological control of fungi by bacteria, such as chitinases produced by Lactobacillus coryniformis 3N11, can effectively degrade fungal cell wall components and inhibit fungal growth. The partially purified chitinase enzyme showed a wide pH range and high optimum temperature, making it suitable for industrial use.
Article
Plant Sciences
Guillaume Brun, Severine Thoiron, Lukas Braem, Jean-Bernard Pouvreau, Gregory Montiel, Marc-Marie Lechat, Philippe Simier, Kris Gevart, Sofie Goormachtig, Philippe Delavault
PLANT CELL AND ENVIRONMENT
(2019)
Review
Plant Sciences
Vincent Goyet, Syogo Wada, Songkui Cui, Takanori Wakatake, Ken Shirasu, Gregory Montiel, Philippe Simier, Satoko Yoshida
FRONTIERS IN PLANT SCIENCE
(2019)
Article
Biotechnology & Applied Microbiology
Estelle Billard, Vincent Goyet, Philippe Delavault, Philippe Simier, Gregory Montiel
PLANT CELL TISSUE AND ORGAN CULTURE
(2020)
Correction
Biotechnology & Applied Microbiology
Estelle Billard, Vincent Goyet, Philippe Delavault, Philippe Simier, Gregory Montiel
PLANT CELL TISSUE AND ORGAN CULTURE
(2020)
Article
Plant Sciences
Gregory Montiel, Muriel Gaudet, Francoise Laurans, Philippe Rozenberg, Matthieu Simon, Pascal Gantet, Christian Jay-Allemand, Christian Breton
Article
Plant Sciences
Sarah Huet, Jean-Bernard Pouvreau, Erwan Delage, Sabine Delgrange, Coralie Marais, Muriel Bahut, Philippe Delavault, Philippe Simier, Lucie Poulin
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Chemistry, Medicinal
Nellie Francezon, Mickael Herbaut, Jean-Francois Bardeau, Charles Cougnon, William Belanger, Rejean Tremblay, Boris Jacquette, Jens Dittmer, Jean-Bernard Pouvreau, Jean-Luc Mouget, Pamela Pasetto
Summary: Marennine, a natural blue molecule produced by the marine diatom Haslea ostrearia, shows promise for the food industry due to its rarity as a non-toxic blue pigment. Research has revealed that marennine exhibits a stable blue-green color in its oxidized state, while a yellow color is observed in its reduced state. These findings contribute to the understanding of marennine's molecular structure and its potential applications in food industry.
Article
Plant Sciences
Florent Cornet, Jean-Paul Pillot, Philippe Le Bris, Jean-Bernard Pouvreau, Nicolas Arnaud, Alexandre de Saint Germain, Catherine Rameau
Summary: This research has revealed that KLU/CYP78A5 is not involved in strigolactone biosynthesis pathway, and has discovered a new role for strigolactone in modulating plastochron during Arabidopsis development via a KLU-dependent pathway.
Article
Microbiology
Eleonora Rolli, Axel de Zelicourt, Hanin Alzubaidy, Michael Karampelias, Sabiha Parween, Naganand Rayapuram, Baoda Han, Katja Froehlich, Aala A. Abulfaraj, Hanna Alhoraibi, Kiruthiga Mariappan, Cristina Andres-Barrao, Jean Colcombet, Heribert Hirt
Summary: Research findings suggest that the endophyte Enterobacter sp. SA187 can trigger immune responses in Arabidopsis, but only at high concentrations, possibly due to its ability to evade or suppress the plant defense system. Transcriptome analysis revealed that LYK4 plays a crucial role in balancing plant immunity and growth and development processes, affecting the plant's resistance to salt stress.
ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Cristina Andres-Barrao, Hanin Alzubaidy, Rewaa Jalal, Kiruthiga G. Mariappan, Axel de Zelicourt, Ameerah Bokhari, Olga Artyukh, Khairiah Alwutayd, Anamika Rawat, Kirti Shekhawat, Marilia Almeida-Trapp, Maged M. Saad, Heribert Hirt
Summary: Enterobacter sp. SA187, a root endophytic bacterium, plays a crucial role in enhancing salt stress tolerance in plants by modulating the sulfur metabolic pathways. SA187 partially rescues the deficiency of sulfur metabolism components in the chloroplast, positively impacting the plant's response to salt stress.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biochemistry & Molecular Biology
Alexandre de Saint Germain, Anse Jacobs, Guillaume Brun, Jean-Bernard Pouvreau, Lukas Braem, David Cornu, Guillaume Clave, Emmanuelle Baudu, Vincent Steinmetz, Vincent Servajean, Susann Wicke, Kris Gevaert, Philippe Simier, Sofie Goormachtig, Philippe Delavault, Francois-Didier Boyer
Summary: This study identified five putative SL receptors in Phelipanche ramosa and showed that PrKAI2d3 is involved in seed germination stimulation, with high plasticity to interact with different chemicals. The study also demonstrated that PrKAI2d3 enzymatic activity confers hypersensitivity to SLs and that methylbutenolide-OH can stimulate P. ramosa germination. This suggests that P. ramosa has extended its signal perception system during evolution, which should be considered for the development of specific and efficient biocontrol methods.
PLANT COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Mauricio Lopez-Obando, Ambre Guillory, Francois-Didier Boyer, David Cornu, Beate Hoffmann, Philippe Le Bris, Jean-Bernard Pouvreau, Philippe Delavault, Catherine Rameau, Alexandre de Saint Germain, Sandrine Bonhomme
Summary: Research on moss plants has shown that PpCCD8-derived compounds may be atypical SLs, and PpKAI2L proteins exhibit stereoselectivity towards the enantiomer (-)-GR24, with eu-KAI2 proteins playing no role in the perception of PpCCD8-derived compounds, while PpKAI2L-G and -J proteins are potential receptors for moss SLs.
Review
Plant Sciences
Guillaume Brun, Thomas Spallek, Philippe Simier, Philippe Delavault
