Metabolic regulation of systemic acquired resistance

Zeier, Jürgen

doi:10.1016/j.pbi.2021.102050

Cited by 94 publications

(129 citation statements)

References 103 publications

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“…154 Recently, UGTs were shown to play an important function in the metabolic inactivation of immune-stimulating small molecules such as salicylic acid and N -hydroxypipecolic acid in plants. 155 In particular, in view of climate change, future research in this direction needs to be intensified to better understand the roles of UGTs for plant health in a changing environment.…”

Section: Discussionmentioning

confidence: 99%

Structure–function relationship of terpenoid glycosyltransferases from plants

et al. 2022

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Section: Discussionmentioning

confidence: 99%

Structure–function relationship of terpenoid glycosyltransferases from plants

et al. 2022

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“…The authors also reported that SA induced high transcript levels of Rubisco large subunit (Rbc L), α-form Ribulose-1,5-bisphosphate carboxylase/oxygenase (ZmRCAα), and β-form Ribulose-1,5-bisphosphate carboxylase/oxygenase (ZmRCAβ) mRNA, which may confirm the positive effects of SA on CO 2 assimilation in our study. It has been reported that SA induces stomatal closure under biotic stress, preventing pathogen invasion into plants [ 35 ]. However, we observed a stomatal aperture in SA-treated A. chilensis plants, where g s increased 41% in moderate drought-stressed plants compared to moderate drought-stressed plants without SA at day 3 ( Figure 3 B).…”

Section: Discussionmentioning

confidence: 99%

“…Among plant hormones, salicylic acid (SA) is involved in plant defense against microbial pathogens, activating the systemic acquired resistance (SAR) [ 34 , 35 ]. Under non-stressed conditions, SA plays an important role in nutrient uptake, cell elongation, photosynthetic pigment levels, photosynthetic activity, and source-to-sink regulation, regulating plant growth and development [ 36 , 37 , 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

Salicylic Acid Improves Antioxidant Defense System and Photosynthetic Performance in Aristotelia chilensis Plants Subjected to Moderate Drought Stress

González‐Villagra

Reyes-Díaz

Tighe‐Neira

et al. 2022

Plants

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Salicylic acid (SA) has been shown to ameliorate drought stress. However, physiological and biochemical mechanisms involved in drought stress tolerance induced by SA in plants have not been well understood. Thus, this study aimed to study the role of SA application on enzymatic and non-enzymatic antioxidants, photosynthetic performance, and plant growth in A. chilensis plants subjected to moderate drought stress. One-year-old A. chilensis plants were subjected to 100% and 60% of field capacity. When plants reached moderate drought stress (average of stem water potential of −1.0 MPa, considered as moderate drought stress), a single SA application was performed on plants. Then, physiological and biochemical features were determined at different times during 14 days. Our study showed that SA application increased 13.5% plant growth and recovered 41.9% AN and 40.7% gs in drought-stressed plants on day 3 compared to drought-stressed plants without SA application. Interestingly, SOD and APX activities were increased 85% and 60%, respectively, in drought-stressed SA-treated plants on day 3. Likewise, SA improved 30% total phenolic content and 60% antioxidant capacity in drought-stressed A. chilensis plants. Our study provides insight into the SA mechanism to tolerate moderate drought stress in A. chilensis plants.

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“…A series of studies have provided evidence that NHP plays a critical role in SAR induction in different plant species ( Holmes et al, 2019 ; Schnake et al, 2020 ). Recent research illustrates that UDP-dependent glycosyltransferase 76B1 (UGT76B1) inactivates NHP by forming the inactive NHP-N-O-glucoside (NHPG) to rationally control the growth-immunity trade-off in crop plants ( Bauer et al, 2021 ; Cai et al, 2021 ; Holmes et al, 2021 ; Mohnike et al, 2021 ; Zeier, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Protein Phosphorylation Changes During Systemic Acquired Resistance in Arabidopsis thaliana

Zhou

Tan

et al. 2021

Front. Plant Sci.

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Systemic acquired resistance (SAR) in plants is a defense response that provides resistance against a wide range of pathogens at the whole-plant level following primary infection. Although the molecular mechanisms of SAR have been extensively studied in recent years, the role of phosphorylation that occurs in systemic leaves of SAR-induced plants is poorly understood. We used a data-independent acquisition (DIA) phosphoproteomics platform based on high-resolution mass spectrometry in an Arabidopsis thaliana model to identify phosphoproteins related to SAR establishment. A total of 8011 phosphorylation sites from 3234 proteins were identified in systemic leaves of Pseudomonas syringae pv. maculicola ES4326 (Psm ES4326) and mock locally inoculated plants. A total of 859 significantly changed phosphoproteins from 1119 significantly changed phosphopeptides were detected in systemic leaves of Psm ES4326 locally inoculated plants, including numerous transcription factors and kinases. A variety of defense response-related proteins were found to be differentially phosphorylated in systemic leaves of Psm ES4326 locally inoculated leaves, suggesting that these proteins may be functionally involved in SAR through phosphorylation or dephosphorylation. Significantly changed phosphoproteins were enriched mainly in categories related to response to abscisic acid, regulation of stomatal movement, plant–pathogen interaction, MAPK signaling pathway, purine metabolism, photosynthesis-antenna proteins, and flavonoid biosynthesis. A total of 28 proteins were regulated at both protein and phosphorylation levels during SAR. RT-qPCR analysis revealed that changes in phosphorylation levels of proteins during SAR did not result from changes in transcript abundance. This study provides comprehensive details of key phosphoproteins associated with SAR, which will facilitate further research on the molecular mechanisms of SAR.

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Metabolic regulation of systemic acquired resistance

Cited by 94 publications

References 103 publications

Structure–function relationship of terpenoid glycosyltransferases from plants

Structure–function relationship of terpenoid glycosyltransferases from plants

Salicylic Acid Improves Antioxidant Defense System and Photosynthetic Performance in Aristotelia chilensis Plants Subjected to Moderate Drought Stress

Protein Phosphorylation Changes During Systemic Acquired Resistance in Arabidopsis thaliana

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