Only an early nitric oxide burst and the following wave of secondary nitric oxide generation enhanced effective defence responses of pelargonium to a necrotrophic pathogen

Floryszak‐Wieczorek, Jolanta; Arasimowicz, M.; Milczarek, Grzegorz; Jeleń, Henryk H.; Jackowiak, Hanna

doi:10.1111/j.1469-8137.2007.02142.x

Cited by 106 publications

(84 citation statements)

References 52 publications

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“…A phenolcontaining amino acid such as tyrosine (Akerström et al 2007) and tryptophan (Bourdon and Blache 2001) have been suggested to contribute to antioxidant functions. Increased TCA levels were previously reported only in plant response to pathogenic fungi ( Floryszak-Wieczorek et al 2007;Morkunas et al 2013). …”

Section: Discussionmentioning

confidence: 94%

Pea aphid infestation induces changes in flavonoids, antioxidative defence, soluble sugars and sugar transporter expression in leaves of pea seedlings

et al. 2015

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The perception of aphid infestation induces highly coordinated and sequential defensive reactions in plants at the cellular and molecular levels. The aim of the study was to explore kinetics of induced antioxidative defence responses in leaf cells of Pisum sativum L.cv. Cysterski upon infestation of the pea aphid Acyrthosiphon pisum at varying population sizes, including accumulation of flavonoids, changes of carbon metabolism, and expression of nuclear genes involved in sugar transport. Within the first 96 h, after A. pisum infestation, flavonoid accumulation and increased peroxidase activity were observed in leaves. The level of pisatin increased after 48 h of infestation and reached a maximum at 96 h. At this time point, a higher concentration of flavonols was observed in the infested tissue than in the control. Additionally, strong post-infestation accumulation of chalcone synthase (CHS) and isoflavone synthase (IFS) transcription products was also found. The levels of sucrose and fructose in 24-h leaves infested by 10, 20, and 30 aphids were significantly lower than in the control. Moreover, in leaves infested by 30 aphids, the reduced sucrose level observed up to 48 h was accompanied by a considerable increase in the expression level of the PsSUT1 gene encoding the sucrose transporter. In conclusion, A. pisum infestation on pea leads to stimulation of metabolic pathways associated with defence.

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Section: Discussionmentioning

confidence: 94%

Pea aphid infestation induces changes in flavonoids, antioxidative defence, soluble sugars and sugar transporter expression in leaves of pea seedlings

et al. 2015

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“…These results indicate that the level of ROIs plays important roles in fine-tuning the interplay between ABA and JA. Nitric oxide is essential to the plant's defense responses against necrotrophs, causing an oxidative burst in host cells (Floryszak-Wieczorek et al, 2007;Asai and Yoshioka, 2009). It also has important roles in wounding-, ABA-, and/or JA-mediated redox regulation and in wound-induced callose deposition against the accumulation of ROIs (Paris et al, 2007;Sang et al, 2007;Arasimowicz et al, 2009;Hu et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Novel Bifunctional Nucleases, OmBBD and AtBBD1, Are Involved in Abscisic Acid-Mediated Callose Deposition in Arabidopsis

You

Kim

et al. 2009

Plant Physiology

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Screening of the expressed sequence tag library of the wild rice species Oryza minuta revealed an unknown gene that was rapidly and strongly induced in response to attack by a rice fungal pathogen (Magnaporthe oryzae) and an insect (Nilaparvata lugens) and by wounding, abscisic acid (ABA), and methyl jasmonate treatments. Its recombinant protein was identified as a bifunctional nuclease with both RNase and DNase activities in vitro. This gene was designated OmBBD (for O. minuta bifunctional nuclease in basal defense response). Overexpression of OmBBD in an Arabidopsis (Arabidopsis thaliana) model system caused the constitutive expression of the PDF1.2, ABA1, and AtSAC1 genes, which are involved in priming ABA-mediated callose deposition. This activation of defense responses led to an increased resistance against Botrytis cinerea. atbbd1, the knockout mutant of the Arabidopsis ortholog AtBBD1, was susceptible to attack by B. cinerea and had deficient callose deposition. Overexpression of either OmBBD or AtBBD1 in atbbd1 plants complemented the susceptible phenotype of atbbd1 against B. cinerea as well as the deficiency of callose deposition. We suggest that OmBBD and AtBBD1 have a novel regulatory role in ABA-mediated callose deposition.

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“…NO is a key signaling molecule involved in plant responses to biotic and abiotic stresses (Beligni and Lamattina 2001;Floryszak-Wieczorek et al 2007). Evidences from different groups indicate that NO donors promote stomatal closure (Garcia-Mata and Lamattina 2001;Neill et al 2002) and increase plant tolerance to drought stress (Garcia-Mata and Lamattina 2001).…”

Section: Introductionmentioning

confidence: 99%

Phospholipase Dδ is involved in nitric oxide-induced stomatal closure

Distefano

Scuffi

Garcı́a-Mata

et al. 2012

Planta

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Nitric oxide (NO) has recently emerged as a second messenger involved in the complex network of signaling events that regulate stomatal closure. Little is known about the signaling events occurring downstream of NO. Previously, we demonstrated the involvement of phospholipase D (PLD) in NO signaling during stomatal closure. PLDδ, one of the 12 Arabidopsis PLDs, is involved in dehydration stress responses. To investigate the role of PLDδ in NO signaling in guard cells, we analyzed guard cells responses using Arabidopsis wild type and two independent pldδ single mutants. In this work, we show that pldδ mutants failed to close the stomata in response to NO. Treatments with phosphatidic acid, the product of PLD activity, induced stomatal closure in pldδ mutants. Abscisic acid (ABA) signaling in guard cells involved H(2)O(2) and NO production, both required for ABA-induced stomatal closure. pldδ guard cells produced similar NO and H(2)O(2) levels as the wild type in response to ABA. However, ABA- or H(2)O(2)-induced stomatal closure was impaired in pldδ plants. These data indicate that PLDδ is downstream of NO and H(2)O(2) in ABA-induced stomatal closure.

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Only an early nitric oxide burst and the following wave of secondary nitric oxide generation enhanced effective defence responses of pelargonium to a necrotrophic pathogen

Cited by 106 publications

References 52 publications

Pea aphid infestation induces changes in flavonoids, antioxidative defence, soluble sugars and sugar transporter expression in leaves of pea seedlings

Pea aphid infestation induces changes in flavonoids, antioxidative defence, soluble sugars and sugar transporter expression in leaves of pea seedlings

Novel Bifunctional Nucleases, OmBBD and AtBBD1, Are Involved in Abscisic Acid-Mediated Callose Deposition in Arabidopsis

Phospholipase Dδ is involved in nitric oxide-induced stomatal closure

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