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Potential mutagenicity of aflatoxin B1 in Egyptian spices.
BMC Genomics
January 2025
Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt.
The current study aimed to detect the mutagenic impacts of aflatoxin B1 (AFB1), which is produced by Aspergillus group fungi, via a high-plant genotoxicity test. Different durations of treatment (3 h, 6 h, and 12 h) were used to treat the Vicia faba root tips with varying concentrations of Aflatoxin B1 (AFB1) following the approved protocol for plant assays published by the International Program on Chemical Safety (IPCS) and the World Health Organization (WHO). The data obtained indicated that AFB1 not only has the ability to induce various alterations in the process of mitosis, ranging from increasing to decreasing mitotic and phase indices but also leads to many mitotic aberrations.
View Article and Find Full Text PDFExcessive accumulation of auxin inhibits protocorm development during germination of Paphiopedilum spicerianum.
Plant Cell Rep
January 2025
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
Excessive auxin accumulation inhibits protocorm development during germination of Paphiopedilum spicerianum, delaying shoot meristem formation by downregulating boundary genes (CUC1, CUC2, CLV3) and promoting fungal colonization, essential for seedling establishment. Paphiopedilum, possess high horticultural and conservational value. Asymbiotic germination is a common propagation method, but high rates of protocorm developmental arrest hinder seedling establishment.
View Article and Find Full Text PDFIsolation and characterization of a new Leptobacillium species promoting tomato plant growth.
Sci Rep
January 2025
Department of Biology, Biochemistry and Natural Sciences, Universitat Jaume I, Castellón de la Plana, Spain.
Endophytes can be a promising alternative for sustainable agronomic practices. In this study, we report for the first time a root-colonizing fungal strain (Sl27) of the genus Leptobacillium as a tomato (Solanum lycopersicum) endophyte, with no clear homology to any known species. Performed analyses and assays, including morphological and physiological characterization of the fungal isolate, provided insights into the ecological niche and potential agronomical and industrial applications of the fungal isolate.
View Article and Find Full Text PDFTrichostatin A promotes de novo shoot regeneration from Arabidopsis root explants via a cytokinin related pathway.
Sci Rep
January 2025
Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, 56212, Republic of Korea.
De novo shoot regeneration, characterized by the emergence of adventitious shoots from excised or damaged tissues or organs in vitro, is regulated by the complex interplay between genetic and epigenetic regulatory mechanisms. However, the specific effect of histone deacetylation on shoot regeneration remains poorly understood. This study investigated the effects of trichostatin A (TSA), a histone deacetylase inhibitor, on shoot regeneration in callus derived from root explants.
View Article and Find Full Text PDFGmERF13 mediates salt inhibition of nodulation through interacting with GmLBD16a in soybean.
Nat Commun
January 2025
The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education; Shandong Key Laboratory of Precision Molecular Crop Design and Breeding; School of Life Sciences, Shandong University, Qingdao, Shandong, China.
While the genetic regulation of nodule formation has been well explored, the molecular mechanisms by which abiotic stresses, such as salt stress, impede nodule formation remain largely elusive. Here, we identify four APETALA2/Ethylene Responsive Factor (AP2/ERF) transcription factors, GmERF13s, that are induced by salt stress and play key roles in salt-repressed nodulation. Loss of GmERF13 function increases nodule density, while its overexpression suppresses nodulation.
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