Impact of chitosan and chitosan-based metallic nanoparticles on the regulation of plant hormones

Khan, Mohammad Nauman; Khan, Zaid; Zhu, Lingjuan; Li, Yanhui; Wu, Honghong

doi:10.1016/b978-0-323-85391-0.00009-5

Cited by 2 publications

(3 citation statements)

References 53 publications

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“…58 We here speculate that because chitosan predominantly functions as a pathogen-associated molecular pattern (PAMP), it can activate both JA and SA-dependent phytohormone signaling. 19,21,22 We next observed that CNP addition significantly enhanced ABA production in plants under herbivory by 33.8%, as compared to control plants (Fig. 5C).…”

Section: Resultsmentioning

confidence: 77%

“…8 First, chitosan can function as a pathogen-associated molecular pattern (PAMP); when recognized through pattern recognition receptors (PRRs), it can trigger plant immune signaling, such as calcium ion influx and activation of calcium-dependent protein kinases (CDPKs). 8,20 Second, it has been reported that chitosan could activate defense-related genes' expression through the octadecanoid pathway and JA and SA-dependent phytohormone signalings, 19,21,22 in turn regulating the production of toxic metabolites. 23 Third, chitosan has been shown to increase the activity of antioxidant enzymes (e.g., SOD, POD, CAT) in plants, so to reduce oxidative stress due to herbivory for example.…”

Section: Introductionmentioning

confidence: 99%

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Nano-chitosan boosts sesame plant anti-herbivore defenses and seed nutritional metabolites

Xiao,

Ji,

Yue

et al. 2024

Environ. Sci.: Nano

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Section: Resultsmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Nano-chitosan boosts sesame plant anti-herbivore defenses and seed nutritional metabolites

Xiao,

Ji,

Yue

et al. 2024

Environ. Sci.: Nano

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“…Consequently, the up-and downregulation of GA-and ABA-biosynthesis-related genes increased endogenous GA 4 contents and decreased that of ABA in chitosan-GSNO-nanoparticle-and Si-primed seeds compared with that in the control. Chitosan nanoparticles have been documented to positively regulate GA content and negatively regulate ABA content during seed germination [60], as well as promote GA expression in Phaseolus vulgaris seed germination [61]. Similarly, Si application has also been documented to improve seed germination and seedling growth by regulating GA and ABA in cucumber [15] and Glycyrrhiza uralensis [62].…”

Section: Discussionmentioning

confidence: 99%

Chitosan-GSNO Nanoparticles and Silicon Priming Enhance the Germination and Seedling Growth of Soybean (Glycine max L.)

Steven,

Islam,

Ghimire

et al. 2024

Plants

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Soybean, a major legume crop, has seen a decline in its production owing to challenges in seed germination and the development of seedlings. Thus, in this study, we systematically investigated the influence of various chitosan–S-nitrosoglutathione (chitosan-GSNO) nanoparticle (0, 25, 50, and 100 µM) and Si (0, 0.5, and 1 mM) priming concentrations on soybean seed germination and seedling growth over five different priming durations (range: 1–5 h at each concentration). Significant differences were observed in all parameters, except seedling diameter, with both treatments. Seed germination was significantly enhanced after 3 h of priming in both treatments. The final germination percentage (FGP), peak germination percentage (PGP), vigor index (VI), seedling biomass (SB), hypocotyl length (HL), and radical length (RL) of 100 μM chitosan-GSNO-nanoparticle-primed seeds increased by 20.3%, 41.3%, 78.9%, 25.2%, 15.7%, and 65.9%, respectively, compared with those of the control; however, the mean germination time (MGT) decreased by 18.43%. Si priming at 0.5 mM increased the FGP, PGP, VI, SB, HL, and RL by 13.9%, 55.17%, 39.2%, 6.5%, 22.5%, and 25.1%, respectively, but reduced the MGT by 12.29% compared with the control treatment. Chitosan-GSNO and Si treatment up-regulated the relative expression of gibberellic acid (GA)-related genes (GmGA3ox3 and GmGA2ox1) and down-regulated that of abscisic acid (ABA)-related genes (GmABA2, GmAAO3, and GmNCED5). Chitosan-GSNO and Si application increased bioactive GA4 levels and simultaneously reduced ABA content. Hence, the use of exogenous chitosan-GSNO nanoparticles and Si as priming agents had a beneficial effect on seed germination and seedling growth because of the up-regulation in the expression of GA and down-regulation in the expression of ABA. Additional research is needed to understand the combined impact of Si and chitosan-GSNO nanoparticles, including their effects on the expression levels of other hormones and genes even in the later growth stage of the crop.

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Impact of chitosan and chitosan-based metallic nanoparticles on the regulation of plant hormones

Cited by 2 publications

References 53 publications

Nano-chitosan boosts sesame plant anti-herbivore defenses and seed nutritional metabolites

Nano-chitosan boosts sesame plant anti-herbivore defenses and seed nutritional metabolites

Chitosan-GSNO Nanoparticles and Silicon Priming Enhance the Germination and Seedling Growth of Soybean (Glycine max L.)

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