Association between glucosinolate concentration and injuries caused by cabbage stink bugs Eurydema spp. (Heteroptera: Pentatomidae) on different Brassicas

Document title: Association between glucosinolate concentration and injuries caused by cabbage stink bugs Eurydema spp. (Heteroptera: Pentatomidae) on different Brassicas
Journal: Acta scientiarum. Agronomy
System number: 000358972
ISSN: 1679-9275
Authors: 1
Institutions: 1University of Ljubljana, Biotechnical Faculty, Ljubljana. Eslovenia
2Slovenian Institute of Hop Research and Brewing, Department of Agrochemistry and Brewing, Zalec. Eslovenia
Season: Ene-Mar
Volumen: 35
Number: 1
Pages: 1-8
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract In 2010, we were determining the contents of glucosinolates in different Brassicas in order to study their influence on feeding of cabbage stink bugs (Eurydema spp.) and the consequent extent of damage. We confirmed that glucosinolates content depends on plant species, plant organs and the time of sampling. In the samples aliphatic glucosinolates (glucoiberin, progoitrin, epiprogoitrin, epiprogoitrin, sinigrin, gluconapin, glucoraphenin, sinalbin) prevailed. Glucobrassicin, an important indolic glucosinolate compound, was detected in all tested Brassicas. Its concentration in the oil radish samples was highest during the first assessment (30 DAS), 8.84 ± 0.65 µmol g-1ds, while the oilseed rape samples displayed lowest concentration during the last assessment (134 DAS), 4.30 ± 0.80 µmol g-1 ds. The stimulative activity of individual glucosinolates or their negative influence on feeding of cabbage stink bugs in the Brassicas used in our experiment was not uniformly manifested. Based on a two-year field experiment we concluded that oil rape was the most adequate trap crop used to allure cabbage stink bugs. In future, glucosinolates should be employed to a greater extent in environmentally acceptable ways of food production, one of which is also the use of trap crops in order to reduce harmful effects of cabbage stink bugs
Portuguese abstract Em 2010 o conteúdo de glucosinolatos em diferentes plantas brássicas foi determinado para estudar a influência sobre a alimentação de percevejos de repolho (Eurydema spp.) e a extensão do dano causado. Através do método do cultivo armadilha, durante o período de crescimento foram amostradas as partes aéreas de óleo de colza, mostarda branca, nabo forrageiro e dois híbridos de repolho branco. O conteúdo de glucosinolatos depende das espécies de plantas, órgãos de plantas e período da amostragem. Predominaram nas amostras os glucosinolatos alifáticos (glucoiberina, progoitrina, epiprogoitrina, sinigrina, gluconapina, glucoraphenina, sinalbina). A glucobrassicina foi detectada em todas as brássicas testadas. Sua concentração no nabo forrageiro foi mais alta na primeira avaliação (30 DAS), 8.84 ± 0.65 µmol g-1 ds, enquanto houve a menor concentração no óleo de colza durante a última avaliação (134 DAS), 4.30 ± 0.80 µmol g-1 ds. Considerando o experimento de dois anos, conclui-se que o óleo de colza foi o mais adequado como cultivo armadilha para atrair o percevejo do repolho. Glucosinolatos podem ser usados no futuro mais extensivamente em várias modalidades de produção de alimentos, entre as quais o emprego de cultivo armadilha para diminuir os danos do percevejo do repolho
Disciplines: Química,
Keyword: Fitoquímica,
Keyword: Chemistry,
Agricultural sciences,
White mustard
Full text: Texto completo (Ver PDF)