Article
Plant Sciences
Prabir Kumar Garain, Bholanath Mondal, Subrata Dutta
Summary: The present study compared various integrated disease management packages for controlling collar rot disease in betelvine and found that a combination of biofumigation, soil curing, soil solarization, and biocontrol was the most effective option, resulting in a significant increase in leaf yield.
JOURNAL OF PLANT PATHOLOGY
(2022)
Article
Microbiology
Shu Jia, Ce Song, Hai Dong, Xujie Yang, Xinghai Li, Mingshan Ji, Jin Chu
Summary: Bacillus velezensis CB13, isolated from pig biogas slurry, was found to effectively control peanut stem rot caused by Sclerotium rolfsii. The CB13 strain inhibited the growth of S. rolfsii and induced defense enzyme activity. Moreover, it promoted the diversity of soil bacterial communities and enhanced disease resistance.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Microbiology
Fanfan Wang, Tao Tang, Ting Mao, Yuanyuan Duan, Xiaoliang Guo, Jingmao You
Summary: In this study, S. rolfsii isolates from 13 hosts in 7 provinces of China were collected and analyzed to identify their morphological features and perform molecular characterization. The results showed the presence of SSR sequences with a frequency of 0.0648 SSR/kB and polymorphisms among 22 populations. Genetic diversity analysis revealed diversity in all host populations and geographical populations, and molecular variance analysis showed that the differences between groups were mainly related to geographical location. Furthermore, cluster analysis divided the populations into 3 groups, consistent with the results based on geographical location.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Cell Biology
Mohammad Reza Safari Motlagh, Maryam Farokhzad, Behzad Kaviani, Dariusz Kulus
Summary: In this study, 166 fungal isolates were obtained from peanut farms in Iran, and six superior endophytic isolates were selected for their ability to suppress the mycelial growth of Sclerotium rolfsii, the causal agent of peanut stem white rot disease. These endophytic fungi showed potential for biological control of the disease, enhancing plant resistance and promoting plant growth.
Article
Agronomy
Swapan Kumar Paul, Nur Uddin Mahmud, Dipali Rani Gupta, Musrat Zahan Surovy, Mahfuzur Rahman, Md. Tofazzal Islam
Summary: It was found that 9.74% of sugar beet plants in 144 experimental plots at Bangladesh Agricultural University were infected with Sclerotium rolfsii causing root rot. The fungus was isolated and pure culture obtained for further analysis, confirming its identity through morphological and molecular investigations. Factors such as carbon sources and medium pH were optimized for better growth of the pathogen on synthetic media, aiding in large-scale inoculation studies.
Article
Biotechnology & Applied Microbiology
Liying Yan, Zhihui Wang, Wanduo Song, Pengmin Fan, Yanping Kang, Yong Lei, Liyun Wan, Dongxin Huai, Yuning Chen, Xin Wang, Hari Sudini, Boshou Liao
Summary: Genomic sequencing of Sclerotium rolfsii strains GP3 and ZY revealed differences in pathogenicity-related genes, pathogen-host interaction genes, secreted CAZymes, effector candidates, and secondary metabolite synthetic gene clusters between the two strains, which may play important roles in their aggressiveness discrepancy.
Article
Agronomy
P. Srividya, Lal M. Ahamed, J. Ramana, S. Khayum Ahammed
Summary: This study investigated the genetic diversity of S. rolfsii isolates collected from chickpea growing regions of Kurnool and Ananthapur districts in Andhra Pradesh. Morphological characterization showed that isolates CSR 14, CSR 18, and CSR 20 had faster growth and sclerotia formation. RAPD analysis revealed a high level of variability among the isolates, clustering them into two groups, with CSR 18 and 20 forming a distinct cluster. The findings of this study are important for understanding the diversity of S. rolfsii and developing effective management practices.
Article
Entomology
Warda Sharf, Arshad Javaid, Amna Shoaib, Iqra Haider Khan
Summary: The study found that PGPR strains Bacillus megaterium OSR3 and Pseudomonas fluorescence PF-097 can effectively control southern blight disease and increase growth and yield of chili.
EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL
(2021)
Article
Agronomy
Deeba Kamil, Amar Bahadur, Prasenjit Debnath, Shiv Pratap Choudhary, Anjali Kumari, Amrita Das
Summary: During the year 2018-19, collar rot symptoms caused by Sclerotium delphinii were observed on Sugandh mantri plants in Agartala district of West Tripura state, India with a disease incidence of 20%. The symptoms included dark brown necrotic lesions on the stem base, which eventually led to plant death. The isolated fungus showed 99-100% identity with Sclerotium delphinii based on the amplified and sequenced ITS region of rDNA. Koch's postulates confirmed the pathogenicity of the fungus on Sugandh mantri plants. This is the first report of collar rot disease caused by Sclerotium delphinii on Sugandh mantri plants in India.
Article
Horticulture
Alexander Balamurugan, Aundy Kumar
Summary: A severe fruit rot symptom was observed on green bell pepper in the local vegetable market in New Delhi, India. The pathogen causing the fruit rot was identified as Alternaria alternata and was found to be able to infect tomatoes and eggplant as well. These findings are important for developing suitable strategies for fruit rot management and postharvest handling.
SCIENTIA HORTICULTURAE
(2023)
Article
Microbiology
Liangliang Li, Jiwen Wang, Dehai Liu, Lei Li, Jing Zhen, Gao Lei, Baitao Wang, Wenling Yang
Summary: This study aims to obtain peanut endophytic bacteria with high antagonistic/protective effects against peanut stem rot caused by Sclerotium rolfsii. 45 bacterial strains were isolated from healthy peanut plants, and 6 of them exhibited antagonistic activity against S. rolfsii. Two strains, Bacillus sp. F-1 and Burkholderia sp. R-11, showed strong antagonistic effects and can be potential biocontrol agents for peanut stem rot.
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2023)
Article
Entomology
A. U. Akash, V. Ramya, G. Uma Devi, S. N. C. V. L. Pushpavalli, S. Triveni
Summary: This study evaluated the antagonistic effect of bacteria and Trichoderma isolated from groundnut rhizosphere soil against the pathogen S. rolfsii. The results showed that these native microorganisms can be used for biological control of groundnut stem rot, potentially providing a sustainable management strategy for this pathogen.
EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL
(2022)
Article
Agriculture, Multidisciplinary
Ashlesha Atri, Maninder Kaur
Summary: Napier hybrid is a favored high-yielding perennial fodder crop among dairy farmers. Due to the sheath rot caused by Sclerotium rolfsii on napier hybrid in Punjab, India, experiments were conducted to study the effect of different nitrogen levels, plant extracts, and organic inputs on disease management. Results showed that plant extracts such as Aegle marmelos, Nicotiana tabacum, Murraya koenigii, and organic inputs like panchgavya, vermiwash, and compost tea had high mycelial growth inhibition on the pathogen, with panchgavya showing the best results in field trials in terms of disease control and fodder yield increase.
JOURNAL OF PLANT DISEASES AND PROTECTION
(2021)
Article
Plant Sciences
G. Uday, S. E. Manjunatha, K. Priyanka, Gurudatt M. Hegde, Suma Biradar, Narayan B. Moger, P. V. Patil
Summary: This study reports for the first time the molecular sequence of Sclerotium rolfsii infecting wheat, and reveals significant variability among isolates collected from different wheat growing areas in Karnataka. Phylogenetic analysis grouped the isolates into two clades based on ITS5/4 sequences.
JOURNAL OF PLANT PATHOLOGY
(2021)
Article
Microbiology
Hongdong Liao, Xiangyu Wen, Xuelei Deng, Yonghong Wu, Jianping Xu, Xin Li, Shudong Zhou, Xuefeng Li, Chunhui Zhu, Feng Luo, Yanqing Ma, Jingyuan Zheng
Summary: This study investigated the response of pepper during S. rolfsii infection and found that stomata served as important portals for fungal infection. The photosynthesis and antioxidant systems in chloroplasts and mitochondria were disproportionally affected by the infection.
JOURNAL OF MICROBIOLOGY
(2022)