Combined Proteomics and Physiological Analyses Reveal Drought and Recovery Response Mechanisms in Banana Leaves

Lau, Su-Ee; Pua, Teen‐Lee; Saidi, Noor Baity; Abdullah, Janna Ong; Lamasudin, Dhilia Udie; Tan, Boon Chin

doi:10.1007/s00344-023-11039-3

Cited by 3 publications

(1 citation statement)

References 90 publications

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“…3c). Changes in MDA levels are often associated with the level of oxidative stress (Lau et al 2023). The increase in accumulation of MDA content in UV-treated S. sclerotiorum mycelia positively correlates with the increase in ROS accumulation, indicating enhanced lipid peroxidation and oxidative damage, which are further exacerbated by the suppression of one of the major antioxidant enzymes SOD with an increase in UV dosage (Fig.…”

Section: Ros Analysis Of Uv-treated Mycelia Showed a Positive Associa...mentioning

confidence: 99%

Synergistic Effects of UV-B and UV-C in Suppressing Sclerotinia sclerotiorum Infection in Tomato Plants

Kean,

Wong,

Rahim

et al. 2024

Preprint

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Ultraviolet radiation has emerged as an eco-friendly biocontrol agent. However, since high doses of UV are biocidal, it is crucial to determine the effects and optimal doses of UV both for fungal pathogens and host plants to maximise the benefits of such treatments. This study investigated the effects of UV-B, UV-C, and their combination treatments on Sclerotinia sclerotiorum, a major fungal pathogen, and tomato plants infected with S. sclerotiorum. Our results showed that the optimised cumulative UV dosage suppressed in vitro sclerotia germination, inhibited mycelial growth, increased reactive oxygen species and lipid peroxidation accumulation and suppressed superoxide dismutase activity in plants. In S. sclerotiorum-inoculated tomato plants, combining UV-B (3600 J/m2) and UV-C (930 J/m²) or applying UV-C (930 J/m²) alone was more effective in suppressing the pathogen (81%) compared to the UV-B (3600 J/m²) alone. The combination treatment also significantly improved fruit yield (1.83-11.88-fold), biomass (2.03-3.46-fold), bioactive compound contents [total phenolic content (1.28-6.03-fold), total flavonoid content (1.29-5.39-fold), and ascorbic acid (1.30-7.70-fold)]. Additionally, the expression of defence genes (PR1, PR2, PR5, PDF1.2, VSP2, PR3, and PR4) in combination treatment was significantly higher than in non-treated plants and individual UV-B or UV-C treatments. This is the first report demonstrating the synergistic effect of UV-B and UV-C as an effective tool for suppressing plant disease, enhancing yield, and improving the quality of agricultural produce, suggesting its potential as a combinatorial treatment for suppressing fungal diseases in crop plants.

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Section: Ros Analysis Of Uv-treated Mycelia Showed a Positive Associa...mentioning

confidence: 99%

Synergistic Effects of UV-B and UV-C in Suppressing Sclerotinia sclerotiorum Infection in Tomato Plants

Kean,

Wong,

Rahim

et al. 2024

Preprint

Self Cite

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Morphological, Physiological, and Photosynthetic Differences of Tartary Buckwheat Induced by Post-Anthesis Drought

Yuan,

Wang,

et al. 2024

Plants

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Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn) is a crop of significant interest due to its nutritional value and resilience to drought conditions. However, drought, particularly following flowering, is a major factor contributing to yield reduction. This research employed two distinct Tartary buckwheat genotypes to investigate the effects of post-anthesis drought on growth and physicochemical characteristics. The study aimed to elucidate the response of Tartary buckwheat to drought stress. The findings indicated that post-anthesis drought adversely impacted the growth, morphology, and biomass accumulation of Tartary buckwheat. Drought stress enhanced the maximum photosynthetic capacity (Fv/Fm) and light protection ability (NPQ) of the ‘Xiqiao-2’ genotype. In response to drought stress, ‘Dingku-1’ and ‘Xiqiao-2’ maintained osmotic balance by accumulating soluble sugars and proline, respectively. Notably, ‘Xiqiao-2’ exhibited elevated levels of flavonoids and polyphenols in its leaves, which helped mitigate oxidative damage caused by drought. Furthermore, rewatering after a brief drought period significantly improved plant height, stem diameter, and biomass accumulation in ‘Dingku-1’. Overall, ‘Xiqiao-2’ demonstrated greater long-term tolerance to post-anthesis drought, while ‘Dingku-1’ was less adversely affected by short-term post-anthesis drought.

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Expressing banana transcription factor MaERFVII3 in Arabidopsis confers enhanced waterlogging tolerance and root growth

Teoh,

Teo,

Baharum

et al. 2024

PeerJ

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Background Waterlogging poses a significant threat to plant growth and yield worldwide. Identifying the genes responsible for mitigating waterlogging stress is crucial. Ethylene-responsive factors (ERFs) are transcriptional regulators that respond to various biotic and abiotic stresses in plants. However, their roles and involvement in responding to waterlogging stress remain largely unexplored. Hence, this study aimed to elucidate the role of ERFs in enhancing banana plant resilience to waterlogging. Methods We hypothesized that introducing a group VII ERF transcription factor in Arabidopsis could enhance waterlogging stress tolerance. To test this hypothesis, we isolated MaERFVII3 from banana roots, where it exhibited a significant induction in response to waterlogging stress. The isolated MaERFVII3 was introduced into Arabidopsis plants for functional gene studies. Results Compared with wild-type plants, the MaERFVII3-expressing Arabidopsis showed increased survival and biomass under waterlogging stress. Furthermore, the abundance of transcripts related to waterlogging and hypoxia response showed an elevation in transgenic plants but a decrease in wild-type and empty vector plants when exposed to waterlogging stress. Our results demonstrate the significant contribution of MaERFVII3 to waterlogging tolerance in Arabidopsis, providing baseline data for further exploration and potentially contributing to crop improvement programs.

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Combined Proteomics and Physiological Analyses Reveal Drought and Recovery Response Mechanisms in Banana Leaves

Cited by 3 publications

References 90 publications

Synergistic Effects of UV-B and UV-C in Suppressing Sclerotinia sclerotiorum Infection in Tomato Plants

Synergistic Effects of UV-B and UV-C in Suppressing Sclerotinia sclerotiorum Infection in Tomato Plants

Morphological, Physiological, and Photosynthetic Differences of Tartary Buckwheat Induced by Post-Anthesis Drought

Expressing banana transcription factor MaERFVII3 in Arabidopsis confers enhanced waterlogging tolerance and root growth

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