Photoinactivation of Colletotrichum truncatum, Corynespora cassiicola, Sclerotinia sclerotiorum and Rhizoctonia solani in soybean seeds by cationic porphyrins

作者

Carolina C. Saulle¹ , Alexandre Claus¹ , Letícia De A. Sales¹ , Alan G. Gonçalves¹ , Diogo R. B. Ducatti¹ , Miguel D. Noseda¹ , Louise L. May De Mio¹

1. Federal University of Paraná

会议/活动

52º Brazilian Congress of Phytopathology, August 2021 (虚拟会议)

海报摘要

The aim of the present study was to evaluate the efficiency of PDI in the photoinactivation of C. truncatum, C. cassiicola, S. sclerotiorum and R. solani, using a mixture of cationic meso-tetra-aryl porphyrins as PS, being the first study to consider this formulation as PS in the photoinactivation of these pathogens. Assays were carried out with soybean seeds artificially inoculated with the different fungi, treated with the PS at 10, 50, 100 and 200 μg/ml and submitted to light under an irradiance of 50 mW/cm2. The assays were set up following the blotter test methodology. The evaluations showed significant reductions in the infection rates of the seeds in relation to the controls. The greatest reductions were 46% for C. truncatum, 95.5% for S. sclerotiorum, 87% for C. cassiicola and 92% for R. solani. The results suggest that PDI can be an important alternative to current control methods against these pathogens.

关键词

Alternative control, Glycine max, Photodynamic inactivation, Seeds

研究领域

Agriculture, Biological Sciences, Plant Sciences, Chemistry

参考文献

1. Adler, A. D., et al. A simplified synthesis for meso-tetraphenylporphine. The Journal of Organic Chemistry, v. 32, n. 2, p. 476-476, 1967.
2. Companhia Nacional de Abastecimento- CONAB. 8º levantamento da safra 2020/2021 de grãos [8th survey of the 2020/2021 grain harvest]. Brazil, 2021.
3. Goulart, A. C. P. Fungi in soybean seeds: detection, important and control. 2. ed. rev., EMBRAPA, 2018.

基金

1. Higher Education Personnel (CAPES)/Brazil (No. 001)
2. National Council for Scientific and Technological Development (CNPq)/Brazil

补充材料

暂无数据

附加信息

利益冲突

No competing interests were disclosed.

数据可用性声明

The datasets generated during and / or analyzed during the current study are available from the corresponding author on reasonable request.

知识共享许可协议

Copyright © 2023 C. Saulle et al. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.