The Effects of Different Nitrogen Forms on Chlorophyll Fluorescence and Photosystem II in Lonicera japonica

Cao, Yiwen; Pan, Yong‐Bao; Wang, Min; Liu, Tianheng; Meng, Xusheng; Guo, Shiwei

doi:10.1007/s00344-022-10873-1

Cited by 10 publications

(4 citation statements)

References 51 publications

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“…Chlorophyll fluorescence reflects the whole process of absorption, utilization, transfer, and dissipation of light energy regulated through PSI and PSII [38]. In this study, all fungal inoculations increased the QY_Lss, QY_max, and Fv/Fm_Lss, which is similar to the findings of Cui et al [39] and Khalvandi et al [40].…”

Section: Discussionsupporting

confidence: 91%

Comparative Response of Arbuscular Mycorrhizal Fungi versus Endophytic Fungi in Tangor Citrus: Photosynthetic Efficiency and P-Acquisition Traits

Lü,

Wu,

Zhu

et al. 2024

Horticulturae

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Citrus plants are prone to phosphorus (P) deficiency, especially in acidic soil, making them more dependent on root-associated endophytic fungi for growth and development. Beni-Madonna, a hybrid of Citrus nanko × C. amakusa, is a citrus known as “tangor” that is highly popular in China and other parts of the world due to its deep red color and jelly-like flesh. In this study, the inoculation response to two arbuscular mycorrhizal fungi (Diversispora versiformis, Dv; Funneliformis mosseae, Fm) and an endophytic fungus (Serendipita indica, Si) with regard to the growth, leaf gas exchange, light energy efficiency, P levels, acid phosphatase activity, and expression of the purple acid phosphatase (PAP) and phosphate transporter (PT) genes through a potted experiment using Beni-Madonna (tangor) citrus plants grafted on trifoliate orange (Poncirus trifoliata) was studied. Two years following inoculation, the root fungal colonization rates of inoculated plants were significantly increased, accompanied by an increase in plant height and stem diameter, with Si presenting the best effect. Fungal inoculations also significantly increased the leaf chlorophyll index, nitrogen-balance index, photosynthesis rate, stomatal conductance, transpiration rate, photosynthetic efficiency, and quantum yield of PSII, while it reduced photoinhibition and heat dissipation, with Si having the best effect on light energy efficiency. Si significantly increased leaf and root P levels, as well as root CsPAP1‒3, CsPT2, CsPT3, and CsPT7 expression and soil acid phosphatase activity; Fm in mycorrhizal fungi significantly increased leaf and root P levels, as well as root CsPT1 and CsPT7 expression and root/soil acid phosphatase activity. These observations suggested an advantage of Si over the other two AMF in terms of improved plant growth and P acquisition, while Fm displayed prominent effects on increased photosynthetic efficiency.

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Section: Discussionsupporting

confidence: 91%

Comparative Response of Arbuscular Mycorrhizal Fungi versus Endophytic Fungi in Tangor Citrus: Photosynthetic Efficiency and P-Acquisition Traits

Lü,

Wu,

Zhu

et al. 2024

Horticulturae

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“…The ETo/ABS and ETo/TRo values in the 10 mg/L group were decreased by 72.95% and 9.76% as opposed to the control group at 3 h, respectively (Fig. 7 A,B), and the decrease of ETo/TRo parameter indicated a susceptibility to photo-inhibition, which can be further confirmed by the increase in DIo/RC value 40 . In addition, there was a significant discrepancy in the Mo, V J , and Sm values (P < 0.01) seen among M. aeruginosa cells cultivated at varying doses of Z. bungeanum residue extracts (Fig.…”

Section: Resultsmentioning

confidence: 57%

Ultrasonic-assisted extraction of total flavonoids from Zanthoxylum bungeanum residue and their allelopathic mechanism on Microcystis aeruginosa

Cheng,

Xu,

Sun

et al. 2024

Sci Rep

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Water eutrophication has emerged as a pressing concern for massive algal blooms, and these harmful blooms can potentially generate harmful toxins, which can detrimentally impact the aquatic environment and human health. Consequently, it is imperative to identify a safe and efficient approach to combat algal blooms to safeguard the ecological safety of water. This study aimed to investigate the procedure for extracting total flavonoids from Z. bungeanum residue and assess its antioxidant properties. The most favorable parameters for extracting total flavonoids from Z. bungeanum residue were a liquid–solid ratio (LSR) of 20 mL/g, a solvent concentration of 60%, an extraction period of 55 min, and an ultrasonic temperature of 80 °C. Meanwhile, the photosynthetic inhibitory mechanism of Z. bungeanum residue extracts against M. aeruginosa was assessed with a particular focus on the concentration-dependent toxicity effect. Z. bungeanum residue extracts damaged the oxygen-evolving complex structure, influenced energy capture and distribution, and inhibited the electron transport of PSII in M. aeruginosa. Furthermore, the enhanced capacity for ROS detoxification enables treated cells to sustain their photosynthetic activity. The findings of this study hold considerable relevance for the ecological management community and offer potential avenues for the practical utilization of resources in controlling algal blooms.

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“…Apart from the treatments, the intensity of light and diffraction plays a crucial role in the activation/deactivation of the photosystem and electron transport system. Cao et al [ 24 ] demonstrated this phenomena with the effect of plant nitrogen in Lonicera japonica , where the increase in light absorption per active reaction central ( ABS / RC ) accompanied by an increase in light trapping per active reaction central ( TR o/ RC ) drove an increase in electron transport flux ( ET o/ RC ). These led to enhanced efficiency of electron transfer to plastoquinone ( ET o/ TR o), simultaneously increasing the photochemistry efficiency ( TR o/ ABS ) and ultimately increasing the heat dissipation ratio ( DI o/ CS ).…”

Section: Resultsmentioning

confidence: 99%

Influence of N-Acetylglucosamine and Melatonin Interaction in Modeling the Photosynthetic Component and Metabolomics of Cucumber under Salinity Stress

Kang,

Adhikari,

Kwon

et al. 2024

IJMS

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The application of N-acetylglucosamine (GlcNAc) and melatonin (Mel) in agriculture could be a promising avenue for improving crop resilience and productivity, especially under challenging environmental conditions. In the current study, we treated the cucumber plant with GlcNAc and Mel solely and combinedly under salt stress (150 mM) then studied photosynthetic attributes using the transient OJIP fluorescence method. The results showed that the combination of GlcNAc × Mel significantly improved the plant morphological attributes, such as root and shoot biomass, and also improved chlorophyll and photosynthetic components. The mineral elements such as K, Mg, Ca, and P were significantly elevated, whereas a lower influx of Na was observed in GlcNAc × Mel treated cucumber shoots. A significant reduction in abscisic acid was observed, which was validated by the reduction in proline content and the increase in stomatal conductance (Gs), transpiration rate (E), and substomatal CO2 concentration (Ci). Furthermore, the activities of antioxidants such as polyphenol and flavonoid were considerably improved, resulting in a decrease in SOD and CAT with GlcNAc × Mel treatment. In addition, GlcNAc × Mel treatment dropped levels of the toxic radical Malondialdehyde (MDA) and elevated amino acids in cucumber shoots. These findings suggest that the combination of GlcNAc × Mel could be an effective elicitor for modeling plant metabolism to confer stress tolerance in crops.

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The Effects of Different Nitrogen Forms on Chlorophyll Fluorescence and Photosystem II in Lonicera japonica

Cited by 10 publications

References 51 publications

Comparative Response of Arbuscular Mycorrhizal Fungi versus Endophytic Fungi in Tangor Citrus: Photosynthetic Efficiency and P-Acquisition Traits

Comparative Response of Arbuscular Mycorrhizal Fungi versus Endophytic Fungi in Tangor Citrus: Photosynthetic Efficiency and P-Acquisition Traits

Ultrasonic-assisted extraction of total flavonoids from Zanthoxylum bungeanum residue and their allelopathic mechanism on Microcystis aeruginosa

Influence of N-Acetylglucosamine and Melatonin Interaction in Modeling the Photosynthetic Component and Metabolomics of Cucumber under Salinity Stress

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