嘧菌酯类杀菌剂对菜豆植株初期生长的影响

Effect of strobilurin fungicide on the initial growth of common bean plants.

作者信息

Rocha A C P, Miranda J F, Das Neves L B, Mendes M M, Amorim A S, Morais G S, Martins J P R, Da Silva M B, Gontijo A B P L, Falqueto A R

机构信息

Center for Human and Natural Sciences, Federal University of Espírito Santo, Avenida Fernando Ferrari 514, 29075-910 Vitória, ES, Brazil.

Department of Agrarian and Biological Sciences, Federal University of Espírito Santo, Litorâneo, 29932-540 São Mateus, ES, Brazil.

出版信息

Photosynthetica. 2025 Jun 2;63(2):116-128. doi: 10.32615/ps.2025.017. eCollection 2025.

DOI:10.32615/ps.2025.017

PMID:40766741

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12319928/

Abstract

Strobilurin fungicides, such as pyraclostrobin (PCL), can impact plant metabolism and morphophysiological parameters. This study evaluated the effects of PCL on L., subjecting seeds to imbibition in different concentrations (0, 112, 450; and 1,800 mg L) for 10 and 30 min. After germination in a growth chamber, germination, growth, biomass, anatomical, and physiological characteristics were analyzed. The study confirmed that PCL interference was proportional to the concentration and seed imbibition time, affecting the percentage of germinated seeds in the first count, normal and abnormal seedlings, and dead seeds. There was a reduction in seedling growth and metaxylem diameter, resulting in lower biomass accumulation. However, lower concentrations (0 and 112 mg L) favored the effective photochemical activity of PSII. We concluded that PCL influences seedling germination, anatomy, and physiology, with reduced concentrations potentially beneficial.

摘要

甲氧基丙烯酸酯类杀菌剂，如吡唑醚菌酯（PCL），会影响植物的新陈代谢和形态生理参数。本研究评估了PCL对番茄种子的影响，将种子置于不同浓度（0、112、450和1800 mg/L）的溶液中浸种10分钟和30分钟。在生长室中萌发后，分析了种子的萌发、生长、生物量、解剖学和生理学特征。研究证实，PCL的干扰与浓度和种子浸种时间成正比，影响首次计数时的发芽种子百分比、正常和异常幼苗以及死种子。幼苗生长和后生木质部直径减小，导致生物量积累降低。然而，较低浓度（0和112 mg/L）有利于PSII的有效光化学活性。我们得出结论，PCL会影响幼苗的萌发、解剖学和生理学，较低浓度可能具有益处。