Article
Plant Sciences
Tingting Mi, Donglan Luo, Jiangkuo Li, Guangfan Qu, Yanzheng Sun, Sen Cao
Summary: This study investigated the antifungal activity and mechanism of carvacrol against the pathogens causing kiwifruit stem-end rot. The results showed that carvacrol could inhibit mycelial growth and spore germination, and damage the membrane integrity of the fungal pathogens. Carvacrol treatment also effectively improved disease resistance, enzyme activities, and the accumulation of pathogenesis-related proteins, phenols, and flavonoids in kiwifruit. These findings suggest the potential application of carvacrol for controlling kiwifruit stem-end rot disease.
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
L. Li, M. H. Mohd, N. M. I. Mohamed Nor, S. Subramaniam, Z. Latiffah
Summary: This study identified multiple fungal species associated with stem-end rot of mango and tested their pathogenicity on different mango cultivars. Some of these species were found to be pathogenic on unwounded fruit as well.
JOURNAL OF APPLIED MICROBIOLOGY
(2021)
Article
Plant Sciences
Oleg Feygenberg, Sonia Diskin, Dalia Maurer, Noam Alkan
Summary: The application of fungicides during flowering in mango orchards can significantly reduce the incidence of stem-end rot disease and increase yield. Chemical fungicides were found to be more effective than biological fungicides in controlling the penetration of Botryosphaeriaceae pathogens.
Article
Microbiology
Rajsekhar Adhikary, Sukhendu Mandal, Vivekananda Mandal
Summary: This study aimed to explore the dynamics of endophytic bacterial communities in mango and its hemiparasites across different seasons, finding variations in endophytic bacterial diversity in different seasons.
CURRENT MICROBIOLOGY
(2022)
Article
Microbiology
Asri Peni Wulandari, Erin Triani, Kartika Sari, Mila Prasetyani, Mohamad Nurzaman, Rully Dyah Purwati, Riksfardini A. Ermawar, Anne Nuraini
Summary: This study demonstrates the potential antifungal activity of endophytic fungi from ramie against plant pathogens. The Penicillium citrinum isolate MEBP0017 showed the highest inhibition against all the ramie pathogens.
Article
Multidisciplinary Sciences
Zong-sheng Yuan, Fang Liu, Shi-bin He, Li-li Zhou, Hui Pan
Summary: This study compared the structural differences of rhizosphere and root endophytic bacterial communities in Acacia species. The results showed significant specificity in bacterial communities between rhizosphere and root soil, with different dominant phyla. Specific bacteria were correlated with nutrient absorption and metabolism of Acacia species.
Article
Microbiology
Bing Wang, Hailing Luo
Summary: The study revealed that replacing alfalfa silage with mulberry leaf silage improved the antioxidant capacity and immune function of lambs, while also altering the diversity and composition of the rumen microbiota. The modified rumen microbial community by mulberry leaf silage was associated with enhanced antioxidant capacity and immunomodulatory effects in lambs.
Article
Chemistry, Applied
Chuying Chen, Nan Cai, Chunpeng Wan, Wenbin Kai, Jinyin Chen
Summary: The study demonstrated that the use of carvacrol (CVR) can effectively control fungal diseases in pummelo fruit, delay fruit quality deterioration, and maintain antioxidant capacity and energy status in the fruit.
Article
Microbiology
Peiqian Li, Baozhen Feng, Zhen Yao, Bohui Wei, Yanfei Zhao, Shouguo Shi
Summary: This study investigated the antagonistic effect of the endophytic strain Bacillus K1 on Botrytis cinerea and found that K1 significantly inhibited the growth of B. cinerea. Inoculation with K1 also reduced gray mold in grape fruit and induced the activity of defense-related enzymes. Scanning electron microscopy suggested that K1 inhibited mycelial growth through bacterial colonization and antibiosis. Genome sequencing revealed the presence of known biosynthesis gene clusters in K1. This study provides a potential biological agent for controlling post-harvest grape fruit diseases and enhances our understanding of the biocontrol mechanisms of Bacillus strains.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Horticulture
Xin Zhan, Raja Asad Ali Khan, Jingya Zhang, Jie Chen, Yaping Yin, Zhengbin Tang, Rui Wang, Baoqian Lu, Tong Liu
Summary: This study tested the antifungal activities of 10 Trichoderma isolates isolated from mango rhizosphere soil against Lasiodiplodia theobromae. The non-volatile metabolites of Trichoderma LS029-3 showed the highest antifungal activity and could destroy the mycelium structure of L. theobromae. The crude extracts of LS029-3 could significantly suppress fungal growth and reduce the severity and lesion area of mango stem-end rot disease.
SCIENTIA HORTICULTURAE
(2023)
Article
Biotechnology & Applied Microbiology
El-Sayed R. El-Sayed, Magdia A. Hazaa, Magdy M. Shebl, Mahmoud M. Amer, Samar R. Mahmoud, Abeer A. Khattab
Summary: This study identified two promising fungal endophytes with diversified bioactivities through isolation, identification, and biological evaluation. The major compounds in the extracts of these strains were identified, and it was found that exposure to gamma rays enhanced the bioactivities significantly. These findings are important for the discovery of new antimicrobial, anticancer, and antioxidant drugs, and highlight the value of fungal endophytes as untapped sources of bioactive metabolites.
Article
Multidisciplinary Sciences
Fatima Martins, Diogo Mina, Jose Alberto Pereira, Paula Baptista
Summary: This study analyzed the endophytic fungal communities of two olive tree orchards and found differences in endophytic communities between orchards, which may influence lifestyle shifts in pathogen. Fungal endophytes associated with high incidence of anthracnose are pathogens, while those linked to low anthracnose incidence protect plants. Overall, the results suggest varying pathogen-endophyte interactions among the two orchards.
SCIENTIFIC REPORTS
(2021)
Article
Biology
Sobia Nisa, Mubarra Shoukat, Yamin Bibi, Samha Al Ayoubi, Waqas Shah, Saadia Masood, Maimoona Sabir, Syeda Asma Bano, Abdul Qayyum
Summary: This study successfully isolated 20 strains of bacterial endophytes from Berberis lycium, with 3 strains showing strong antibacterial activity. These endophytes exhibited moderate antioxidant and antifungal activities. Analysis revealed the presence of multiple bioactive secondary metabolites in these endophytes.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2022)
Article
Microbiology
Jingjing Cui, Zhihao Yi, Yuming Fu, Hong Liu
Summary: Simulated microgravity has varying effects on the plant root microbiome, with no significant changes observed in fungal community composition and diversity, but a significant change in the composition and diversity of endophytic bacteria of wheat seedlings. The alteration of endophytic bacterial communities showcases the recruitment strategies of wheat seedlings under simulated microgravity.
ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Heba G. Hussein, El-Sayed R. El-Sayed, Nahed A. Younis, Abd El Hamid A. Hamdy, Saadia M. Easa
Summary: This study explores the suitability of endophytic fungi as nano-factories for the synthesis of selenium nanoparticles (SeNPs). Four promising fungal strains were found to be able to synthesize SeNPs with different characteristics. The synthesized SeNPs exhibited potent antifungal and antibacterial activities against various pathogens, as well as promising antioxidant power.
Article
Plant Sciences
Oleg Feygenberg, Sonia Diskin, Dalia Maurer, Noam Alkan
Summary: The application of fungicides during flowering in mango orchards can significantly reduce the incidence of stem-end rot disease and increase yield. Chemical fungicides were found to be more effective than biological fungicides in controlling the penetration of Botryosphaeriaceae pathogens.
Article
Plant Sciences
Pradeep Kumar Sudheeran, Noa Sela, Mira Carmeli-Weissberg, Rinat Ovadia, Sayantan Panda, Oleg Feygenberg, Dalia Maurer, Michal Oren-Shamir, Asaph Aharoni, Noam Alkan
Summary: Red mango fruit exposed to sunlight develops higher resistance to fungal pathogens, with the presence of antifungal compounds and induced resistance contributing to this enhanced defense mechanism.
HORTICULTURE RESEARCH
(2021)
Article
Agriculture, Multidisciplinary
Akhilesh Yadav, Anton Fennec, Rachel Davidovich-Rikanati, Sagit Meir, Bettina Kochanek, Efraim Lewinsohn, Asaph Aharoni, Noam Alkan, Haya Friedman
Summary: Despite lower polyphenol content, fruits of nonastringent persimmon cultivars show higher resistance to Alternaria infection due to the presence of specific phenolic compounds with antimicrobial activity. Selected compounds like salicylic, ferulic, and rho-coumaric acids inhibit the growth of Alternaria, while methyl ferulic and methyl rho-coumaric acids show even higher activity. The study highlights the importance of specific phenolic compounds, rather than total phenols, in affecting susceptibility to fungal infection.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Agronomy
Lilah Saidi, Danielle Duanis-Assaf, Ortal Galsarker, Dalia Maurer, Noam Alkan, Elena Poverenov
Summary: The study developed active edible coatings containing phenylalanine which significantly reduced natural decay of avocado fruit, increased resistance to fungal pathogens and cold storage, and improved flavor.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2021)
Article
Microbiology
Sapir Ron-Doitch, Marina Frusic-Zlotkin, Yoram Soroka, Danielle Duanis-Assaf, Dalit Amar, Ron Kohen, Doron Steinberg
Summary: The study found that Staphylococcus aureus and Staphylococcus epidermidis form biofilms on healthy human skin surfaces, composed of extracellular polysaccharides and extracellular DNA, providing skin protection against UVB-induced apoptosis.
Article
Biotechnology & Applied Microbiology
Menachem Gross, Fadi Ashqar, Ronit Vogt Sionov, Michael Friedman, Ron Eliashar, Batya Zaks, Irith Gati, Danielle Duanis-Assaf, Mark Feldman, Doron Steinberg
Summary: Coating voice prostheses (VP) with sustained release varnish containing chlorhexidine (SRV-CHX) inhibits biofilm formation and delays bacterial growth, providing new clinical means for reducing bacterial biofilm formation on VPs and device failure.
INTERNATIONAL MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Danielle Duanis-Assaf, Ortal Galsurker, Olga Davydov, Dalia Maurer, Oleg Feygenberg, Moshe Sagi, Elena Poverenov, Robert Fluhr, Noam Alkan
Summary: Pathogenic fungi cause postharvest losses, prompting the need for new control strategies. The development of dsRNA-ERG effectively inhibits fungal growth and grey-mould development, reducing the required fungicide amount.
PLANT BIOTECHNOLOGY JOURNAL
(2022)
Editorial Material
Plant Sciences
Carlos R. Figueroa, Cai-Zhong Jiang, Carolina A. Torres, Ana M. Fortes, Noam Alkan
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Dorin Harpaz, Danielle Duanis-Assaf, Noam Alkan, Evgeni Eltzov
Summary: The study successfully integrated oligonucleotides-based detection into a commercial 96-well plate reader for monitoring RNA-markers of quiescent fungi in harvested crops, demonstrating both high sensitivity and specificity.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Michal Fanyuk, Manish Kumar Patel, Rinat Ovadia, Dalia Maurer, Oleg Feygenberg, Michal Oren-Shamir, Noam Alkan
Summary: Anthocyanins and flavonols are important components responsible for the red coloration of mango and apple. Preharvest treatment with phenylalanine (Phe) can enhance the red coloring intensity and surface area of the fruit peel, and increase the total flavonoid and anthocyanin content as well as the antioxidant activity. However, the combination of Phe with other substances did not have a significant additive effect on the increase in red color. Phe treatment had different effects on the composition of flavonols and anthocyanins in apple and mango fruit peel.
Article
Food Science & Technology
Alon Shomron, Danielle Duanis-Assaf, Ortal Galsurker, Alexander Golberg, Noam Alkan
Summary: Ulvan extract can induce the defense response of grapes and reduce decay. It increases the activity of reactive oxygen species and defense-related enzymes without affecting fruit quality parameters.
Article
Plant Sciences
Xiang-Rong Zheng, Mao-Jiao Zhang, Yu-Hang Qiao, Ran Li, Noam Alkan, Jie-Yin Chen, Feng-Mao Chen
Summary: The study found that the Wufeng cultivar of Cyclocarya paliurus exhibited the strongest resistance to the fungal pathogen Colletotrichum fructicola, while the Jinggangshan cultivar was the most susceptible. Physiological and histochemical experiments showed that the Wufeng cultivar had high defense capabilities. Using a multiomics approach, the study revealed that the resistance in Wufeng is related to early induction of reprogramming of the flavonoid biosynthesis pathway. In vitro antifungal assays further demonstrated the inhibitory effect of flavonoid extracts from resistant cultivars on the growth of C. fructicola.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Manish Kumar Patel, Sonika Pandey, Bhakti Tanna, Noam Alkan, Avinash Mishra
Summary: This study compared primary metabolic pathways and markers in three halophytes, revealing variations and common pathways among them. The findings shed light on how shrubby halophytes adapt to high salinity in natural environments, providing important insights into their metabolic responses.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Chemistry, Applied
Manish Kumar Patel, Michal Fanyuk, Oleg Feyngenberg, Dalia Maurer, Noa Sela, Rinat Ovadia, Michal Oren-Shamir, Noam Alkan
Summary: Cold storage is the best method for prolonging fruit storage, but tropical fruit are susceptible to cold storage. The application of phenylalanine after harvest can enhance the chilling tolerance of mango fruit by regulating metabolic and defense-related pathways, maintaining high levels of flavonoids and antioxidants, and reducing oxidative damage.
Review
Horticulture
Di Gong, Yang Bi, Yongcai Li, Yi Wang, Dov Prusky, Noam Alkan
Summary: Antioxidant activity is a crucial feature in assessing fruit quality and its ability to tolerate biotic or abiotic stresses. Researchers have discovered that preharvest sprays with chemical elicitors can enhance antioxidant activity, reduce chilling injury, and maintain the quality of harvested fruit. These elicitors improve antioxidant activity in fruit by promoting the synthesis of antioxidant components and their ability to scavenge reactive oxygen species. Additionally, preharvest elicitors spray alleviates chilling injury in fruit by regulating membrane lipid metabolism and reactive oxygen species metabolism, and maintains fruit quality by modulating respiration and ethylene release.