Spatial–Temporal Response of Reactive Oxygen Species and Salicylic Acid Suggest Their Interaction in Pumpkin Rootstock-Induced Chilling Tolerance in Watermelon Plants

Cheng, Fei; Gao, Min; Lu, Junyang; Huang, Yuan; Bie, Zhilong

doi:10.3390/antiox10122024

Cited by 5 publications

(2 citation statements)

References 67 publications

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“…CS/CF plants showed higher antioxidant enzyme activity than CS/CS plants after chilling [17]. Grafting with pumpkin rootstock increases the regulation of antioxidant metabolism to improve chilling tolerance in watermelon [36].…”

Section: Putrescine Biosynthesis Improve the Cold Tolerance Of Grafte...mentioning

confidence: 98%

Heterologous Grafting Improves Cold Tolerance of Eggplant

Wang

et al. 2022

Sustainability

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Grafting is commonly used to enhance the quality and confer biotic or abiotic stress tolerance to plants. There is, however, no clear understanding of how grafted eggplant responds to cold stress. Here, four grafting combinations of eggplant from cold-sensitive line J55 and cold-resistant line J65 were subjected to morpho-physiological experiments and transcriptome sequencing to compare their responses to cold stress. After being subjected to cold stress, a total of 5883,6608,6867 and 5815 differentially expressed genes (DEGs) were identified in J55-J55L0_vs_J55-J55L1 (C0), J55-J65_vs_J55-J65L1 (T2), J65-J55_vs_J65-J55L1 (T1), and J65-J65_vs_J65-J65L1 (C1), respectively. When comparing C0 and C1, there exist 4580 specifical DEGs which were differentially expressed either in C0 or C1 (C0_vs_C1), these DEGs are more likely to induce the difference of the two grafted combinations. There is a total of 5583 specifical DEGs in C0_vs_T1 and 5209 specifical DEGs in C0_vs_T2, respectively. GO functional analysis found specifical DEGs mainly enriched the cell and membrane, catalytic activity, metabolic process, and cellular process, which was the same in comparison to heterografted and self-grafted eggplant in C0_vs_C1, C0_vs_T1 and C0_vs_T2. KEGG analysis showed that the specifical DEGs were mainly enriched in plant hormone signal transduction in C0_vs_C1, C0_vs_T1, and C0_vs_T2. Therefore, we screened ten candidate genes associated with AUX/IAA, salicylic acid and other hormone regulations that were differentially expressed in C0_vs_C1 C0_vs_T1, and C0_vs_T2. We believe that plant hormones play a vital role in regulating the cold tolerance of grafted eggplant. We also found that 22 DEGs enriched in arginine and proline metabolism in comparison to self-and hetero-grafted eggplant C0 and T1, predicted that putrescine biosynthesis plays a certain role in improving the cold resistance of eggplant by heterologous grafting. Meanwhile, by the comparison of specifical DEGs on C0_vs_C1 and C0_vs_T2, the DEGs enriched in a similar KEGG pathway, it is considered that the better cold tolerance of J65 as a scion has a more important effect on the cold resistance of eggplant.

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Section: Putrescine Biosynthesis Improve the Cold Tolerance Of Grafte...mentioning

confidence: 98%

Heterologous Grafting Improves Cold Tolerance of Eggplant

Wang

et al. 2022

Sustainability

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“…SA is a phenolic hormone that regulates plant growth and development in response to stress, and it also has a positive regulatory function on plant leaf antiaging (Taiz et al 2023). Many studies have shown that there is a signaling function between SA and ROS (Cheng et al 2021;Herrera-Vasquez et al 2015). SA not only promotes oxidation, but also synergistically exerts antioxidant effects with GSH (Han et al 2013;Herrera-Vasquez et al 2015).…”

Section: Low Content Of Photosynthetic Pigments In White Meso-phyll C...mentioning

confidence: 99%

Accumulation of Salicylic Acid and 12-oxo-phytodienoic Acid Acting on the Antioxidant Pathway to Keep Stability of Striped Leaves of Variegated Temple Bamboo

Chen,

Tang,

Tao

et al. 2024

J. Amer. Soc. Hort. Sci.

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Variegated temple bamboo (Sinobambusa tootsik f. luteoloalbostriata) is one of the native variegated bamboo species has some whole green (WG) and whole white (WW) leaves in addition to striped green and white ones. The life span of WW leaves is short, but the life span of striped leaves (SLs) is unaffected by the area of white mesophyll, and the SL phenotype is well maintained. To explore the mechanism of phenotypic stability of SL, we took five leaf phenotypes as study materials: WG, WW, SL, the green part of SL (SG), and the white part of SL (SW). Through the measurement of photosynthetic pigments, leaf nutrient elements, chloroplast synthesis–related hormones and their precursors in the leaves, and antioxidant system parameters, we examined the antioxidant adaptation mechanism of the white mesophyll cells of S. tootsik f. luteoloalbostriata. The results indicated that abscisic acid (ABA) levels were substantially higher in WW leaves than in SW leaves, and salicylic acid (SA) levels were significantly higher in SW leaves compared with WW leaves. Levels of 12-oxo-phytodienoic acid (OPDA), and SA were substantially higher in WW and SW than in the leaves of the other three phenotypes. Glutathione (GSH) levels were substantially higher in SW than in SG and reactive oxygen species (ROS) levels were significantly lower. Overall, the white mesophyll cells of S. tootsik f. luteoloalbostriata had strong antioxidant properties. SA and OPDA jointly act on the antioxidant pathway to reduce the content of ROS in leaves, thus ensuring the stability of SL.

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