<scp>PHYTOALEXIN DEFICIENT</scp> 4 affects reactive oxygen species metabolism, cell wall and wood properties in hybrid aspen (<scp>P</scp>opulus tremula <scp>L</scp>. × tremuloides)

Ślesak, Ireneusz; Szechyńska‐Hebda, Magdalena; Fedak, Halina; Sidoruk, Natalia; Dąbrowska-Bronk, Joanna; Witoń, Damian; Rusaczonek, Anna; Antczak, A.; Drożdżek, Michał; Karpińska, Barbara; Karpiński, Stanisław

doi:10.1111/pce.12388

Cited by 17 publications

(14 citation statements)

References 51 publications

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“…Furthermore, LSD1 is a condition‐dependent scaffold protein and transcription regulator, and forms dimers with EDS1 (Czarnocka et al ). Recently, we reported that PAD4 and EDS1 can function in woody plants in a similar manner as in Arabidopsis (Ślesak et al , Szechyńska‐Hebda et al , Bernacki et al ).…”

Section: Introductionmentioning

confidence: 77%

“…Salicylic acid (SA) and reactive oxygen species (ROS), such as H 2 O 2 , are important signaling molecules that regulate CD, photosynthesis, WUE, stomatal conductance and cross‐tolerance processes (Desikan et al , Gechev and Hille , Ślesak et al , Wituszyńska et al , Wituszyńska et al , Szechyńska‐Hebda et al , Bernacki et al , Czarnocka and Karpiński ). They also play a vital role in plant development (Mittler et al , Gawroński et al ) and seed yield control (Abreu and Munné‐Bosch ).…”

Section: Introductionmentioning

confidence: 99%

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LSD1‐, EDS1‐ and PAD4‐dependent conditional correlation among salicylic acid, hydrogen peroxide, water use efficiency and seed yield in Arabidopsis thaliana

Bernacki

Czarnocka

Rusaczonek

et al. 2019

Physiologia Plantarum

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In Arabidopsis thaliana, LESION SIMULATING DISEASE 1 (LSD1), ENHANCED DISEASE SUSCEPTIBILITY 1 (EDS1) and PHYTOALEXIN DEFICIENT 4 (PAD4) proteins are regulators of cell death (CD) in response to abiotic and biotic stresses. Hormones, such as salicylic acid (SA), and reactive oxygen species, such as hydrogen peroxide (H2O2), are key signaling molecules involved in plant CD. The proposed mathematical models presented in this study suggest that LSD1, EDS1 and PAD4 together with SA and H2O2 are involved in the control of plant water use efficiency (WUE), vegetative growth and generative development. The analysis of Arabidopsis wild‐type and single mutants lsd1, eds1, and pad4, as well as double mutants eds1/lsd1 and pad4/lsd1, demonstrated the strong conditional correlation between SA/H2O2 and WUE that is dependent on LSD1, EDS1 and PAD4 proteins. Moreover, we found a strong correlation between the SA/H2O2 homeostasis of 4‐week‐old Arabidopsis leaves and a total seed yield of 9‐week‐old plants. Altogether, our results prove that SA and H2O2 are conditionally regulated by LSD1/EDS/PAD4 to govern WUE, biomass accumulation and seed yield. Conditional correlation and the proposed models presented in this study can be used as the starting points in the creation of a plant breeding algorithm that would allow to estimate the seed yield at the initial stage of plant growth, based on WUE, SA and H2O2 content.

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Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

LSD1‐, EDS1‐ and PAD4‐dependent conditional correlation among salicylic acid, hydrogen peroxide, water use efficiency and seed yield in Arabidopsis thaliana

Bernacki

Czarnocka

Rusaczonek

et al. 2019

Physiologia Plantarum

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“…EDS1 plays an important role during oxidative stress caused by the release of singlet oxygen 49 . And PAD4 also involves in the integrated regulation of ROS homoeostasis 50 . The pathogen B. dothidea causes cankers characterised by the collapse of cells and discoloured areas; these cankers alter cellular regulatory processes and increase the production of ROS.…”

Section: Discussionmentioning

confidence: 99%

Activation of disease resistance against Botryosphaeria dothidea by downregulating the expression of MdSYP121 in apple

Huo

Liu

et al. 2018

Hortic Res

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In plants, the vesicle fusion process plays a vital role in pathogen defence. However, the importance of the vesicle fusion process in apple ring rot has not been studied. Here, we isolated and characterised the apple syntaxin gene MdSYP121. Silencing the MdSYP121 gene in transgenic apple calli increased tolerance to Botryosphaeria dothidea infection; this increased tolerance was correlated with salicylic acid (SA) synthesis-related and signalling-related gene transcription. In contrast, overexpressing MdSYP121 in apple calli resulted in the opposite phenotypes. In addition, the results of RNA sequencing (RNA-Seq) and quantitative real-time PCR (qRT-PCR) assays suggested that MdSYP121 plays an important role in responses to oxidation–reduction reactions. Silencing MdSYP121 in apple calli enhanced the expression levels of reactive oxygen species (ROS)-related genes and the activity of ROS-related enzymes. The enhanced defence response status in MdSYP121-RNAi lines suggests that syntaxins are involved in the defence response to B. dothidea. More importantly, we showed that MdSYP121 forms a soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) complex with MdSNAP33, and the complex may participate in regulating resistance to B. dothidea. In conclusion, by regulating the interaction of SA pathway and oxidation–reduction process, MdSYP121 can influence the pathogen infection process in apple.

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“…2 has been established as references suggested (Lin and Dence 2012;Zhou et al 2012;Ślesak et al 2015), and lignin content of black liquor and washing effluent is presented in Table 5. As pulp consistency increased, lignin brought to the alkali recovery unit increased from 34.98 g/t to 88.43 g/t, which will favor the vapor production and economical efficiency for soda recovery technique.…”

Section: Determination Of Lignin In Black Liquor and Washing Effluentmentioning

confidence: 99%

The Influence of Stock Consistency on the Pollution Load in Washing Process

Chen¹,

Li²,

Lei³

et al. 2016

BioResources

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The influences of stock consistency on the kappa number, residual alkali of pulp, flow direction of lignin, chemical oxygen demand, oxidation with dichromate (CODCr), and five-day biochemical oxygen demand (BOD5) in effluents were investigated in a washing process. Compared with 15% stock consistency, 35% stock consistency could lead to a decrease of at least 25% in the consumption of washing water while cutting 75.27% and 46.29% of CODCr and BOD5 in washing effluents, respectively. Moreover, the residual lignin in effluents were reduced greatly from 39.35 g·t -1 to 12.76 g·t -1 , which will be beneficial to treatment of washing and bleaching effluent. All the results showed that a higher stock consistency in the washing process could decrease the consumption of washing water, the generation of pollution, and the toxicity in bleaching effluent.

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PHYTOALEXIN DEFICIENT 4 affects reactive oxygen species metabolism, cell wall and wood properties in hybrid aspen (Populus tremula L. × tremuloides)

Cited by 17 publications

References 51 publications

LSD1‐, EDS1‐ and PAD4‐dependent conditional correlation among salicylic acid, hydrogen peroxide, water use efficiency and seed yield in Arabidopsis thaliana

LSD1‐, EDS1‐ and PAD4‐dependent conditional correlation among salicylic acid, hydrogen peroxide, water use efficiency and seed yield in Arabidopsis thaliana

Activation of disease resistance against Botryosphaeria dothidea by downregulating the expression of MdSYP121 in apple

The Influence of Stock Consistency on the Pollution Load in Washing Process

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