Differential Effects of Exogenous Resveratrol on the Growth and Energy Metabolism of Zea mays and the Weed Ipomoea grandifolia

Abstract

An increase in crop competitiveness relative to weed interference has the potential to reduce crop yield losses. In this study, the effects of phytoalexin resveratrol were examined in Zea mays L. (corn) and in the weed species Ipomoea grandifolia (Dammer) O’Donell (morning glory). At a concentration range from 220 to 2200 μM resveratrol exerted a stimulus on Z. mays seedling growth that was more pronounced at low concentrations; in the weed species I. grandifolia, resveratrol exerted inhibitory action on seedling growth in all of the assayed concentration range. In I. grandifolia, resveratrol also inhibited the respiratory activity of the primary roots. In mitochondria isolated from Z. mays roots, resveratrol at concentrations above 440 μM inhibited the respiration coupled to ADP phosphorylation and the activities of NADH-oxidase, succinate-oxidase, and ATPsynthase. These effects were not reproduced in Z. mays grown in the presence of resveratrol as the respiratory activities of the roots were not affected. The finding that the resveratrol exerts beneficial effects on growth of Z. mays seedlings and inhibits the growth of I. grandifolia heightens the potential of resveratrol application for crop protection.

Resveratrol exerts beneficial effects on the growth and metabolism of Lactuca sativa L

“…Resveratrol did not significantly affect the lettuce seed germination, reproducing the observation of Mantovanelli et al (2020) in Z. mays and I. grandifolia. Similar results were also reported in radish seeds where resveratrol did not have intensive germination-stimulating properties, unlike protectors to ethanol seed sterilization treatment (Balanov et al 2021).…”

“…Conversely, it significantly stimulated fresh and dry weight of the aerial part of lettuce, already at low concentrations, leaving unchanged the length and weight of the root system. This positive effect was already observed in maize seedlings, although only at 440 µM resveratrol concentration (Mantovanelli et al 2020).…”

“…Recently, Mantovanelli et al (2020) studied the effect of exogenous resveratrol on seed germination, seedling growth, and mitochondrial energy metabolism in the crop/weed system, Zea mays/Ipomoea grandifolia. They demonstrated that resveratrol stimulates maize seedling growth, inhibiting, at the same concentration, the weed I. grandifolia.…”

Effect of Salt Stress on the Activity, Expression, and Promoter Methylation of Succinate Dehydrogenase and Succinic Semialdehyde Dehydrogenase in Maize (Zea mays L.) Leaves

“…The inhibition of cytochrome c oxidase was achieved by adding 1 mM KCN. Cyanide-resistant mitochondrial respiration was determined as the rate of oxygen uptake after the addition of KCN as inhibitor, assuming 100% as the rate of oxygen consumption by mitochondria in the oxidative phosphorylation state before the addition of the inhibitor [ 44 , 45 ]. The rate of succinate oxidation was expressed in nmol O 2 min −1 mg −1 protein.…”

Stilbenoids as Promising Natural Product-Based Solutions in a Race against Mycotoxigenic Fungi: A Comprehensive Review

“…So far, very few reports have reported the occurrence of phytotoxic damage induced by stilbenoids. Mantovanelli et al 117 argued that exogenous resveratrol ranging between 220 to 2200 μM (between 50−500 mg/L) served as a stimulus for Zea mays seedling growth, but also as an inhibitor of the growth of Ipomoea grandifolia weed, thereby supporting the use of exogenous resveratrol for crop protection. Another report by Sańchez-Goḿez et al 118 indicated nonphytotoxic effects of vine-shoot extracts on Lactuca sativa lettuce.…”