Glucosinolate content and nematicidal activity of Brazilian wild mustard tissues against Meloidogyne incognita in tomato

• Published in: Plant and soil Vol. 341; no. 1-2; pp. 155 - 164
• Main Authors: Oliveira, Rosângela D. L, Dhingra, Onkar D, Lima, André O, Jham, Gulab N, Berhow, Mark A, Holloway, Ray K, Vaughn, Steven F
• Format: Journal Article
• Language: English
• Published: Dordrecht Dordrecht : Springer Netherlands 01.04.2011; Springer; Springer Netherlands; Springer Nature B.V
• Subjects: Agricultural pests; Agrology; Agronomy. Soil science and plant productions; allelochemicals; Animal, plant and microbial ecology; Biological and medical sciences; Biomedical and Life Sciences; Brassica juncea; Chemical control; Computer industry; Control; Crops; Demand side management; Ecology; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Glucosinolate; Glucosinolates; Heterodera glycines; Isothiocyanate; Isothiocyanates; Life Sciences; Lycopersicon esculentum; Meloidogyne incognita; mustard meal; Mustards; Nematoda; Nematodes; Parasitic plants. Weeds; Phytopathology. Animal pests. Plant and forest protection; Plant Physiology; Plant Sciences; Plants; Protozoa. Invertebrates; Regular Article; root-knot nematodes; Seeds; Sinapis arvensis; Soil amendments; Soil nematodes; Soil Science & Conservation; Soil-plant relationships. Soil fertility; Soil-plant relationships. Soil fertility. Fertilization. Amendments; Tissues; Tomatoes; Weeds; South America; Brazil; America; United States; Root-knot nematode; Isothiocyanate; Glucosinolate; Allelochemicals; Mustard meal; Activity; Pest; Meloidogyne incognita; Cruciferae; Dicotyledones; Angiospermae; Thioglycoside; Lycopersicon esculentum; Meloidogynidae; Wild plant; Carbohydrate; Solanaceae; Nematoda; C3-Type; Isothiocyanates; Brassica juncea; Vegetals; Nematicide; Weed; Sulfur Organic compounds; Biochemical compound; Pesticides; Oside; Biological compound; Vegetable crop; Content; Helmintha; Nemathelminthia; Spermatophyta; Sinapis arvensis; Invertebrata; Soil plant relation; Heteroside; Oil plant (vegetal)
• ISSN: 0032-079X; 1573-5036
• DOI: 10.1007/s11104-010-0631-8

The wild mustard (Brassica juncea L.), an invasive weed of winter crops in Brazil, was evaluated for glucosinolate content of its plant tissues and nematicidal activity of its dry leaf meal (LM), whole seed meal (WSM) and hexane defatted seed meal (DSM) against Meloidogyne incognita on tomato plants. Sinigrin was the major glucosinolate in LM, WSM and DSM, occurring at concentration of 0.11, 12.2 and 21.9 mg/gdw, respectively. Allyl isothiocyanate (AITC) was the major degradation product and its concentration was highest in DSM followed by WSM and LM. The number of galls, egg masses and eggs on tomato plants was reduced by over 90% by amending soil with 1.6% LM, 0.2% WSM, or 0.05% DSM. Exposure to the volatiles from the amended soils reduced egg eclosion. The soil amendment with LM, WSM and DSM killed the second stage juveniles of M. javanica, M. enterolobii (=M. mayaguensis) and Heterodera glycines. The efficacy of the LM, WSM and DSM for nematode suppression was related to the amount of AITC released in soil.