纳米粒子和光动力疗法在小麦种子互交锈病防治中的应用

IF 1.2 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY Ciencia E Agrotecnologia Pub Date : 2022-01-01 DOI:10.1590/1413-7054202246005222
Lucas Couto Duarte, H. C. R. Catão, N. D. Tebaldi
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引用次数: 1

摘要

小麦作物(Triticum spp.)在巴西塞拉多地区的推广凸显了使用无病原体种子的必要性。摘要本研究旨在评价纳米颗粒和光动力处理(PhT)对真菌互交霉(Alternaria alternata)体外生长的抑制效果、对自然污染小麦种子的处理和控制效果以及对种子生理品质的影响。NPs (ZnOCl, ZnOCl:1Cu, ZnOCl:0.1Ag;采用亚甲基蓝(MB)和甲苯胺蓝(TB)染料分别对氧化锌:1Cu、氧化锌、氧化锌:1Ag和氧化锌:1Ag进行处理,通过对小麦种子萌发、出苗、GSI、ESI、加速老化和健康等指标的评价,评价了氧化锌:1Cu、氧化锌:1Ag和氧化锌:1Ag和氧化锌:1Ag染料对小麦种子中褐花霉菌丝生长的抑制作用和对该病菌的防治作用。2.5和5 mg mL-1浓度的NPs和50和100µmol L-1浓度的MB、TB、MB + TB染料抑制了菌丝生长,降低了交替孢霉在种子中的发病率。5 mg mL-1的NP ZnO:1Ag和100µmol L-1的MB + TB染料对菌丝生长的抑制效果最好。NPs和PhT对小麦种子的生理品质不产生影响,对小麦种子的互花蚜有一定的控制作用,在小麦种子的防治中具有潜在的应用价值。
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Nanoparticles and photodynamic therapy in the treatment and control of Alternaria alternata in wheat seeds
ABSTRACT The expansion of wheat crops (Triticum spp.) to the Brazilian Cerrado highlights the need to use pathogen-free seeds. This study aimed at evaluating the efficacy of nanoparticles (NPs) and photodynamic therapy (PhT) in inhibiting the in vitro growth of the fungus Alternaria alternata, in its treatment and control in naturally contaminated wheat seeds, and in the physiological quality of the seeds. The efficacy of NPs (ZnOCl, ZnOCl:1Cu, ZnOCl:0.1Ag; ZnO:1Cu, ZnO, and ZnO:1Ag) and PhT using methylene blue (MB) and toluidine blue (TB) dyes was evaluated in inhibiting the mycelial growth of A. alternata and in the treatment and control of the pathogen in wheat seeds by evaluating germination, emergence, GSI, ESI, accelerated ageing, and health. All NPs at 2.5 and 5 mg mL-1 concentrations and the dyes MB, TB, MB + TB at 50 and 100 µmol L-1 inhibited mycelial growth and reduced the incidence of A. alternata in the seeds. The NP ZnO:1Ag at 5 mg mL-1 and the MB + TB dye at 100 µmol L-1 were the most effective in inhibiting mycelial growth. NPs and PhT did not affect the physiological quality of seeds and controlled A. alternata in wheat seeds, demonstrating potential use in the treatment and control of the pathogen in wheat seeds.
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来源期刊
Ciencia E Agrotecnologia
Ciencia E Agrotecnologia 农林科学-农业综合
CiteScore
2.30
自引率
9.10%
发文量
19
审稿时长
6-12 weeks
期刊介绍: A Ciência e Agrotecnologia, editada a cada 2 meses pela Editora da Universidade Federal de Lavras (UFLA), publica artigos científicos de interesse agropecuário elaborados por membros da comunidade científica nacional e internacional. A revista é distribuída em âmbito nacional e internacional para bibliotecas de Faculdades, Universidades e Instituições de Pesquisa.
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