Biochemical changes in cuttings of Robinia pseudoacacia after treatment with naphthenate

Abstract

Naphthenic acids were isolated from gas oil fractions (distillation interval 168-290 qC) of Vojvodina crude oil "Velebit", characterized and their biological activity evaluated by the biochemical changes in cuttings of Robinia pseudoacacia after treatment with naphthenate. The activities of IAA peroxidase, total peroxidases and amylase, as well as the contents of reducing sugars and total proteins, were determined in the basal parts of soft wood cuttings of black locust after treatment with sodium naphthenate or the sodium salt of 1-naphthaleneacetic acid (NAA), concentration 10 -7 mol dm -3 for 3 or 6 h. High activities of IAA oxidase and amylase, together with a low activity of peroxidase (which is known as being stimulatory for the initiation and activation of primordia) were obtained after the three-hour treatment with sodium naphthenate. Six-hour treatment had an inhibitory effect on the examined biochemical markers. The effects of three-and six-hour treatments with NAA were between those of the corresponding treatment with naphthenic acids.

Foliar and root treatments of cucumber with potassium naphthenate: Antioxidative responses

“…The concentrations of K-naph used in this study (0.1, 1 and 10 μM), were by 10 and 100 times higher compared to the concentration used in our previous studies [18,20,21,26], but were much lower than the concentrations used in phytotoxicity studies [27,28].…”

“…Studies of our group have shown that these substances influence plant rooting [18][19][20], as well as the accumulation of particular ions in the root and aboveground parts of plants [21]. The aim of the present work was to study the effect of the three low concentrations of potassium naphthenate (K-naph) (0.1, 1 and 10 μM) in two application modes (through the root and through the leaves) on the total antioxidant capacity and particular parameters of the antioxidant status of cucumber plants.…”

Microwave-assisted synthesis of biologically active amide derivatives of naphthenic acids under neat conditions

“…In addition to their widespread commercial uses [30], they are also prevalent in refinery process wastewater, which is the source of NAs contamination in the environment. It has been reported [31][32][33][34] that natural mixtures of NAs exhibit physiological activity similar to plant hormones of the auxin and gibberelin type. These carboxylic acids stimulate the rooting of cuttings and the lateral branches of sunflower [35], as well as poplar hardwood cuttings [36].…”

Biochemical changes in barberries during adventitious root formation: the role of indole-3-butyric acid and hydrogen peroxide

“…The ability to form adventitious roots is affected by genotype, stock plants, types of cuttings, collection date, and endogenous factors related to cutting (Kibber et al, 2004;Tworkoski & Takeda, 2007). Numerous studies on adventitious root formation have shown that changes in phenolic compounds, sugar and protein content significantly affect root formation (Kaur et al, 2002;Sivaci & Yalcim, 2006;Kevresan et al, 2007;Satish et al, 2008). Carbohydrates are the direct products of photosynthesis; they serve as an energy source and provide the carbon necessary for production of new tissue (Sivaci & Yalcim, 2006).…”

“…PPO is involved in the oxidation of phenol and contributes energy for cell division and cell differentiation in organogenesis of explants in tissue cultures (Satisha et al, 2008). Peroxidase is a marker of the inductive and initiative phases of root formation in plants (Yilmaz et al, 2003;Kevresan et al, 2007).…”