Transgenic expression of dual positional maize lipoxygenase-1 leads to the regulation of defense-related signaling molecules and activation of the antioxidative enzyme system in rice

Cho, Kyoungwon; Kim, Young Cheol; Woo, Je Chang; Rakwal, Randeep; Agrawal, Ganesh Kumar; Yoeun, Sereyvath; Han, Oksoo

doi:10.1016/j.plantsci.2011.10.016

Cited by 20 publications

(11 citation statements)

References 57 publications

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“…In plants, the LOX proteins play an important role in lipid peroxidation under biotic and abiotic stress, and involve in a number of developmental stages [18]. Moreover, LOX initiated the plant oxylipin pathway and produced jasmonic acid (JA), which participates in the defense responses against biotic and abiotic stresses [4]. In the current study, LOX activity was significantly decreased due to salinity or sodicity stress.…”

Section: Discussionmentioning

confidence: 54%

Effect of salinity and sodicity stresses on physiological response and productivity inHelianthus annuus

Farghaly¹,

Radi²,

Abdel-Wahab³

et al. 2016

Acta Biologica Hungarica

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Soil salinity and sodicity (alkalinity) are serious land degradation issues worldwide that are predicted to increase in the future. The objective of the present study is to distinguish the effects of NaCl and Na 2 CO 3 salinity in two concentrations on the growth, lipoxygenase (LOX) activity, membrane integrity, total lipids, yield parameters and fatty acids (FAs) composition of seeds of sunflower cultivar Sakha 53. Plant growth, LOX activity and malondialdehyde (MDA) content were reduced by salts stresses. On the contrary, salinity and alkalinity stress induced stimulatory effects on membrane permeability, leakage of UV-metabolites from leaves and total lipids of sunflower shoots and roots. Crop yield (plant height, head diameter, seed index and number of seeds for each head) that is known as a hallmark of plant stress was decreased by increasing concentrations of NaCl and Na 2 CO 3 in the growth media. Fatty acid methyl esters (FAME) composition of salt-stressed sunflower seeds varied with different levels of NaCl and Na 2 CO 3 .

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Section: Discussionmentioning

confidence: 54%

Effect of salinity and sodicity stresses on physiological response and productivity inHelianthus annuus

Farghaly¹,

Radi²,

Abdel-Wahab³

et al. 2016

Acta Biologica Hungarica

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“…Among them, three lipoxygenases were up-regulated in shoot tissue. The lipoxygenases initiated the plant oxylipin pathway and then produced jasmonic acid (JA), which participates in the defense responses against biotic and abiotic stresses [68–70]. Ethylene (ET) was also found to be involved in many abiotic stress responses [71].…”

Section: Discussionmentioning

confidence: 99%

Comparative Transcriptional Profiling of Two Contrasting Barley Genotypes under Salinity Stress during the Seedling Stage

Gao

Guo³

et al. 2013

International Journal of Genomics

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Salinity is one of the major abiotic stresses that affect crop productivity. Identification of the potential novel genes responsible for salt tolerance in barley will contribute to understanding the molecular mechanism of barley responses to salt stress. We compared changes in transcriptome between Hua 11 (a salt-tolerant genotype) and Hua 30 (a salt sensitive genotype) in response to salt stress at the seedling stage using barley cDNA microarrays. In total, 557 and 247 salt-responsive genes were expressed exclusively in the shoot and root tissue of the salt-tolerant genotype, respectively. Among these genes, a number of signal-related genes, transcription factors and compatible solutes were identified and some of these genes were carefully discussed. Notably, a LysM RLK was firstly found involved in salt stress response. Moreover, key enzymes in the pathways of jasmonic acid biosynthesis, lipid metabolism and indole-3-acetic acid homeostasis were specifically affected by salt stress in salt tolerance genotype. These salt-responsive genes and biochemical pathways identified in this study could provide further information for understanding the mechanisms of salt tolerance in barley.

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“…The most well‐known bioactive oxylipin, JA, is biosynthesized from the fatty acid substrate α‐linolenic acid (α‐LeA) via the 13‐LOX pathway. Genetic and biochemical methods have been used to show that the 13‐LOX pathway and its products, such as JA and green leaf volatiles (GLVs) produced by the hydroperoxide lyase (HPL) pathway play important roles in direct and indirect induced defenses against herbivores in diverse dicot species, including tobacco (Halitschke and Baldwin , Kessler et al ), Arabidopsis (Chauvin et al , Garcia‐Marcos et al ) and potato (Royo et al ), and in monocots, including rice (Wang et al , Zhou et al ) and maize (Cho et al , Christensen et al ). However, little is known about the role of the 9‐LOX pathway in plant defenses against herbivores, although there is increasing evidence that the pathway influences plant development (Vellosillo et al , Gao et al ), stomatal closure (Montillet et al ), defense responses to pathogens (Gao et al , Montillet et al , Vellosillo et al ) and plant cell death (Sayegh‐Alhamdia et al , Hwang and Hwang , Garcia‐Marcos et al ).…”

Section: Introductionmentioning

confidence: 99%

The 9-lipoxygenase Osr9-LOX1 interacts with the 13-lipoxygenase-mediated pathway to regulate resistance to chewing and piercing-sucking herbivores in rice

Zhou

Ren

et al. 2014

Physiol Plantarum

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Oxylipins produced by the 13-lipoxygenase (LOX) have been reported to play an important role in plant defense responses to herbivores. Yet, the role of oxylipins produced by the 9-LOX pathway in this process remains largely unknown. Here we cloned a gene encoding a chloroplast-localized 9-LOX, Osr9-LOX1, from rice. Transcriptional analysis revealed that herbivore infestation, mechanical wounding and jasmonic acid (JA) treatment either repressed or did not enhance the level of Osr9-LOX1 transcripts at early stages but did at later stages, whereas salicylic acid (SA) treatment quickly increased the transcript level of Osr9-LOX1. Antisense expression of Osr9-lox1 (as-r9lox1) decreased the amount of wound-induced (Z)-3-hexenal but increased levels of striped stem borer (SSB)-induced linolenic acid, JA, SA and trypsin protease inhibitors. These changes were associated with increased resistance in rice to the larvae of the SSB Chilo suppressalis. In contrast, although no significant differences were observed in the duration of the nymph stage or the number of eggs laid by female adults between the brown planthopper (BPH) Nilaparvata lugens that fed on as-r9lox1 lines and BPH that fed on wild-type (WT) rice plants, the survival rate of BPH nymphs that fed on as-r9lox1 lines was higher than that of nymphs that fed on WT plants, possibly because of a higher JA level. The results demonstrate that Osr9-LOX1 plays an important role in regulating an herbivore-induced JA burst and cross-talk between JA and SA, and in controlling resistance in rice to chewing and phloem-feeding herbivores.

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Transgenic expression of dual positional maize lipoxygenase-1 leads to the regulation of defense-related signaling molecules and activation of the antioxidative enzyme system in rice

Cited by 20 publications

References 57 publications

Effect of salinity and sodicity stresses on physiological response and productivity inHelianthus annuus

Effect of salinity and sodicity stresses on physiological response and productivity inHelianthus annuus

Comparative Transcriptional Profiling of Two Contrasting Barley Genotypes under Salinity Stress during the Seedling Stage

The 9-lipoxygenase Osr9-LOX1 interacts with the 13-lipoxygenase-mediated pathway to regulate resistance to chewing and piercing-sucking herbivores in rice

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