Nematocid effects of watercress (Nasturtium officinale R. Br.)

Abstract

ZAHRADNÍKOVÁ HELENA, PETŘÍKOVÁ KRISTÍNA: Nematocid eff ects of watercress (Nasturtium offi cinale R. Br.). Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013, LXI, No. 1, pp. 233-236 The watercress (Nasturtium offi cinale R. Br.) is o en grown as a forced leaf vegetable rich in vitamins and minerals. Its specifi c taste and curative eff ects result from the presence of mustard glycosides (glucosinolates) that may also show nematocidic eff ects. The aim of this study was to evaluate the eff ect of watercress eluate and juice on tomato plants inoculated with the northern root-knot nematode (NRKN) Meloidogyne hapla. It was found out that a er the treatment of plants with solutions derived from watercress the yield of fruit was highly signifi cantly increased. The highest yield increase (by 96 % to 165 %) was observed in the variant with the highest concentration of watercress extracts (macerate + 200 ml of juice). Although at lower concentrations of watercress solution the increase in yields was also reduced (by 57-118 %), the diff erence was still statistically highly signifi cant. The eff ect of this treatment on the content of vitamin C was similar and the increase was also highly signifi cant and ranged from 24 to 67 %. When evaluating the occurrence of nematodes on roots of tomato plants, the presence of pathogens was equal to zero percent in all treated variants. The treatment with this phytosolution corroborated not only a nematocidic eff ect of watercress but also its positive infl uence on the yield and level of vitamin C in dependence on increasing concentrations of the eff ective agent. It can be therefore concluded that the watercress solution showed a promoting eff ect on tomato plants.watercress, nematocidic eff ects, tomato, yield, vitamin C The watercress Nasturtium offi cinale R. Br. is a member of Brassicaceae family and is cultivated as a perennial, nutritionally valuable and tasty forced vegetable that is popular in a number of countries. It is rich in chemoprotective substances.

Effects of Watercress Containing Rutin and Rutin Alone on the Proliferation and Osteogenic Differentiation of Human Osteoblast-like MG-63 Cells

“…None of the other compounds matched with previously reported compounds from watercress [7,8,20,21,22,23] or online resources.…”

“…The chemical constituents of watercress extract were analyzed using UPLC/MS and MS/MS data (data not shown), and rutin was identified from the recently developed online resource METLIN, Massbank, and ReSpect, and by comparison with standard commercially available rutin. None of the other compounds matched with previously reported compounds from watercress [ 7 , 8 , 20 , 21 , 22 , 23 ] or online resources.…”

“…is a perennial aquatic herb from the Brassicaceae family, which is native to Europe and is applied widely in local recipes. Fresh raw watercress leaves, which are used as salad greens [ 6 ], contain high levels of vitamin C, vitamin E, and members of the B-group vitamins, as well as many minerals, such as Ca, P, K, Fe, Mg, Zn, traces of Se, β-carotene, and glucosinolates [ 7 ]. Watercress leaves are widely used as home remedies with depurative, diuretic, expectorant, hypoglycemic, antidontalgic, stimulant, and stomachic properties, but also to treat hypertension and cardiovascular diseases [ 8 ].…”

Volatile emissions of watercress (Nasturtium officinale) leaves and passion fruit (Passiflora edulis) seeds against Meloidogyne incognita

“…The toxicity of passion fruit against PPNs is still unknown, but the oil from its seeds has known antifungal properties . Another potential plant that has been demonstrated to have nematicidal activity is watercress ( Nasturtium officinale ), with the active ingredient identified as an isothiocyanate . However, the effects of other molecules produced by this plant have not been studied thus far, making further research necessary.…”

Resistance induction and nematicidal activity of certain monoterpenes against tomato root-knot caused by Meloidogyne incognita

“…For example, the severity of M. incognita was significantly reduced in plants treated with neem extracts (Sivakumar and Gunasekaran, 2011) oil also showed nematicidal activity (Ayaz et al, 2015). Moreover, the treatment with watercress oil resulted in a significant decrease in symptoms caused by M. hapla nematode disease and a significant increase in the fruit yield (Zahradnikova and Petrikova, 2013).…”