Comparative effects of allelochemical and water stress in roots of Lycopersicon esculentum Mill. (Solanaceae)

Romero-Romero, Teresa; Sánchez‐Nieto, Sobeida; SanJuan-Badillo, and Andrea; Anaya, Ana Luisa; Cruz-Ortega, Rocío

doi:10.1016/j.plantsci.2004.12.002

Cited by 52 publications

(45 citation statements)

References 37 publications

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“…Therefore, we conclude that despite the similar effect caused by both stresses (inhibition/delay of germination), the mode of their action is different at the biochemical level, as was previously suggested by Romero-Romero et al (2005).…”

Section: Discussionsupporting

confidence: 69%

“…An increased CAT activity in response to allelochemicals has also been demonstrated in germinating cucumber seeds treated by different benzoic acids (Maffei et al, 1999). Romero-Romero et al (2005) observed increased CAT activity in tomato affected by phytotoxins from Sicyos deppei. However, regarding the complex composition of sunflower leaves extract (Macias et al, 2002) it is not possible to conclude that there is a specific effect of phytotoxic compounds on antioxidant enzymes.…”

Section: Discussionmentioning

confidence: 69%

“…They include disruption of membrane permeability (Galindo et al, 1999), ion uptake (Lehman and Blum, 1999), inhibition of electron transport in both photosyntetic and the respiratory chain (Peñuelas et al, 1996;Abrahim et al, 2000;Czarnota et al, 2001), alterations of enzyme activities (Cruz-Ortega et al, 1990;Politycka, 1998), and inhibition of cell division (Cruz-Ortega et al, 1988;Anaya and Pelayo-Benavides, 1997). It has also been postulated that allelopathy stress might lead to an imbalance between antioxidant defenses and the amount of reactive oxygen species (ROS), resulting in oxidative stress (Cruz-Ortega et al, 2002;Bais et al, 2003;Romero-Romero et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Induction of Oxidative Stress by Sunflower Phytotoxins in Germinating Mustard Seeds

et al. 2007

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The aim of this study was to investigate the phytotoxic effect of sunflower on physiological and biochemical processes during germination of mustard seeds (Sinapis alba L. cv. Nakielska). To exclude the involvement of osmotic stress in seed reaction to phytotoxic compounds, we compared the effect of 10% (w/v) water extract from sunflower (Helianthus annuus L. cv. Ogrodowy) leaves and 28.4% (w/v) polyethylene glycol (PEG) 8000 solution characterized by an equal Y =−1 MPa. We evaluated (1) the amount of hydrogen peroxide (H 2 O 2 ); (2) activities of antioxidant enzymes: superoxide dismutase, catalase, and glutathione reductase; (3) membrane permeability; and (4) level of malondialdehyde (MDA). Both, sunflower compounds and PEG solutions inhibited mustard seed germination, but only phytotoxins caused an increase in the cell membrane permeability, MDA level, H 2 O 2 concentration, and alterations in activities of antioxidant enzymes. Our results demonstrate that despite the activation of the antioxidant system by sunflower phytotoxins, reactive oxygen species accumulation caused cellular damage, which resulted in the decrease of germinability and gradual loss of seed vigor. It seems that the negative effect of sunflower on germination of mustard seeds is mostly because of its toxicity and not to its contribution to osmotic potential.

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Section: Discussionsupporting

confidence: 69%

Section: Discussionmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

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Induction of Oxidative Stress by Sunflower Phytotoxins in Germinating Mustard Seeds

et al. 2007

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“…To avoid cellular damage by ROS, detoxifying antioxidants and scavenging enzymes such as ascorbate peroxidase (APX), peroxidase (POD), catalase (CAT) and superoxide dismutase (SOD) are produced in cellular compartments (Sadeghi & Robati, 2015). Of late, ROS-generation resulting in oxidative damage has been considered as one of the modes of action of allelochemicals in causing growth inhibition (Cruz-Ortega et al, 2002;Romero-Romero et al, 2005;Kaur et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Antioxidant activity of Trifolium resupinatum L. exposed to different extracts from leaves, flowers and shoots of Prangos ferulacea

Bazdar

Sadeghi

2018

Span. j. agric. res.

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Prangos ferulacea is a member of Apiaceae family, is a popular fodder for livestock production and an important species in rangeland restoration. The objectives of the research are the comparative phytotoxic activity of aqueous and hydroalcoholic extracts obtained from different organs (flower, shoot and leaf) of P. ferulacea on antioxidant response of Trifolium resupinatum was investigated in a laboratory bioassay. Antioxidant enzyme activities including catalase (CAT), peroxidase (POD), ascorbic peroxidase (APX), and superoxide dismutase (SOD), in line with content of malondialdehyde (MDA) and hydrogen peroxide were measured. Results indicated that hydroalcoholic extract of P. ferulaceae flower possess the highest total phenolic content as well as highest phytotoxic effect on T. resupinatum. The highest antioxidant enzyme activity belonged to hydroalcoholic treatment. The treated T. resupinatum seedlings experienced lipid peroxidation at high extract concentrations (12% of hydroalcoholic and 100% of aqueous extract) as evidenced by increased concentration of MDA. In response to this, the activities of SOD, CAT, POD and APX increased at lower extract concentrations but significantly dropped as concentrations increased. According to results of this study, rehabilitation of T. resupinatum sites through the use of P. ferulaceae will probably not be successful.

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“…Antioxidant defense systems become activated under stress condition to scavenge the ROS molecules and enhanced the antioxidant enzyme activities viz. SOD, CAT, and POX [5]. Therefore, it is become most utmost demand to mitigate the deleterious effects of salt stress on plants through developing different methods and strategies.…”

Section: Introductionmentioning

confidence: 99%

Salicylic Acid Enhances Growth and Productivity in Cabbage (Brassica oleracea var. Capitata L.) Grown Under Saline Condition

Parvin¹,

Fujita²,

Hasanuzzaman³

2017

Foc Sci

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Introduction: This experiment was set up to investigate the beneficial effect of salicylic acid to reduce the harmful consequence of salinity on cabbage productivity where Salt stress severely limits plant growth, development and yield. Methods: We had grown cabbage plants under different levels of NaCl salinity (0, 4, 8 dS m -1 ) alone or supplemented with foliar spray of different concentrations of salicylic acid (SA, 0, 0.25 and 0.5 mM). This experiment was laid out in a randomized complete block design with three replications. Collected all data were statistically analyzed following the analysis of variance (ANOVA) technique using MSTAT-C program and the mean differences were adjudged by least significant difference (LSD) test at 5% level of significance. Results: Results showed that, higher concentrated salt treated plants give the significant lower growth and head yield. Plant growth as well as yield of cabbage such as heads thickness, diameter and weight were decreased with increased level of salinity such as 8 dS m -1 compared with other treatment. While, foliar application of SA increased growth and yield also hindered stress induced growth and production inhibition. The improvement in plant height, leaf number, leaf length and breadth, foliage coverage, number of root and weight, head thickness, diameter and weight were increased with increased concentration of SA and higher value were recorded from 0.50 mM SA. Conclusions: It can be concluded that SA improve the plant defense system to resist the toxic effect of salinity.

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Comparative effects of allelochemical and water stress in roots of Lycopersicon esculentum Mill. (Solanaceae)

Cited by 52 publications

References 37 publications

Induction of Oxidative Stress by Sunflower Phytotoxins in Germinating Mustard Seeds

Induction of Oxidative Stress by Sunflower Phytotoxins in Germinating Mustard Seeds

Antioxidant activity of Trifolium resupinatum L. exposed to different extracts from leaves, flowers and shoots of Prangos ferulacea

Salicylic Acid Enhances Growth and Productivity in Cabbage (Brassica oleracea var. Capitata L.) Grown Under Saline Condition

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