Effects of spermidine on chlorophyll content, photosynthetic activity and chloroplast ultrastructure in the dark and under light

Pjon, Che-Jun; Kim, Sok-dong; Pak, Jung-Min

doi:10.1007/bf02488409

Cited by 7 publications

(7 citation statements)

References 13 publications

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“…It was found that spermidine not only stimulates the biosynthesis of chlorophylls, but also inhibits their decomposition and stabilisation of chloroplast thylakoid membranes. As a result it causes considerable activation of the process of photosynthesis in its dark and light phases (Pjon et al 1990).…”

Section: Resultsmentioning

confidence: 99%

“…In chloroplasts di-and polyamines stimulate the photosynthetic process in both its phases the dark and the light as well as activating the primary and secondary growth of the cell wall. These compounds stimulate the active transport of metabolites, the functioning of enzymes and ion pumps localised in the cellular membranes Shih et al 1982;Smith 1985;Pjon et al 1990;Gniazdowska-Skoczek et al 1994;Bagni 1997;Kakkar et al 1997/98;Laitinen et al 1998;Bajguz and Czerpak 1999;Czerpak and Bajguz 1999;Desideiro et al 1999;Kotzabasis et al 1999).…”

Section: Introductionmentioning

confidence: 99%

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Biochemical activity of di- and polyamines in the green alga Chlorella vulgaris Beijerinck (Chlorophyceae)

et al. 2011

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This study concerns on the influence of diamines (agmatine, putrescine) and polyamines (spermine, spermidine) upon the growth and the content of chlorophyll a and b, monosaccharides and proteins in the cells of alga Chlorella vulgaris Beijerinck (Chlorophyceae). In the experiments agmatine, putrescine, spermine and spermidine in the range of concentrations 10 -6 -10 -3 M were used. At the concentration 10 -3 M and the 1st day of cultivation, they have a toxic effect on growth of the algae. It was found that di-and polyamines used within the range of concentration 10 -6 -10 -4 M stimulate the growth and the contents of analysed biochemical parameters in the cells of C. vulgaris. The most stimulating influence on metabolism of the alga was demonstrated by spermidine and putrescine at concentration of 10 -4 M. Agmatine and spermine were characterised by a lower biological activity than spermidine and putrescine demonstrated the most stimulating influence.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biochemical activity of di- and polyamines in the green alga Chlorella vulgaris Beijerinck (Chlorophyceae)

et al. 2011

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“…However, few earlier studies showed that high concentrations of polyamines may destroy the structure of chloroplasts which depended on different light conditions. Spd treatment with chloroplast for about 10 s displayed the envelope and the typical dense network of the thylakoid lamellae interspersed with numerous areas of stacked grana (Pjon et al, 1990). After 72 h, the chloroplast envelopes of spermidine-treated leaf disks incubated in the dark and under light conditions, the chloroplast envelope was destroyed by polyamine treatment, but there were distinct differences in the appearance of the chloroplast ultrastructures of dark and light-incubated leaves (Cohen et al, 1979).…”

Section: Chloroplast Ultrastructurementioning

confidence: 99%

A Review: Polyamines and Photosynthesis

Shu¹,

Guo²,

Yuan³

2012

Advances in Photosynthesis - Fundamental Aspects

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“…While a low concentration of Spd can help to recover plant photosynthesis under stress, high concentrations of Spd can lead to a decline of the plant maximum photochemical efficiency . A previous study also suggests that foliar application of 1 mM Spd under light can bleach chlorophyll . Therefore, we decreased the dosage of free Spd to 0.2 mM to minimize the negative impact from overdosing.…”

Section: Resultsmentioning

confidence: 99%

Temperature-Responsive Bottlebrush Polymers Deliver a Stress-Regulating Agent In Vivo for Prolonged Plant Heat Stress Mitigation

Zhang

Martinez

et al. 2023

ACS Sustainable Chem. Eng.

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Anticipated increases in the frequency and intensity of extreme temperatures will damage crops. Methods that efficiently deliver stress-regulating agents to crops can mitigate these effects. Here, we describe high aspect ratio polymer bottlebrushes for temperature-controlled agent delivery in plants. The foliar-applied bottlebrush polymers had near complete uptake into the leaf and resided in both the apoplastic regions of the leaf mesophyll and in cells surrounding the vasculature. Elevated temperature enhanced the in vivo release of spermidine (a stress-regulating agent) from the bottlebrushes, promoting tomato plant (Solanum lycopersicum) photosynthesis under heat and light stress. The bottlebrushes continued to provide protection against heat stress for at least 15 days after foliar application, whereas free spermidine did not. About 30% of the ∼80 nm short and ∼300 nm long bottlebrushes entered the phloem and moved to other plant organs, enabling heat-activated release of plant protection agents in phloem. These results indicate the ability of the polymer bottlebrushes to release encapsulated stress relief agents when triggered by heat to provide long-term protection to plants and the potential to manage plant phloem pathogens. Overall, this temperature-responsive delivery platform provides a new tool for protecting plants against climate-induced damage and yield loss.

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Effects of spermidine on chlorophyll content, photosynthetic activity and chloroplast ultrastructure in the dark and under light

Cited by 7 publications

References 13 publications

Biochemical activity of di- and polyamines in the green alga Chlorella vulgaris Beijerinck (Chlorophyceae)

Biochemical activity of di- and polyamines in the green alga Chlorella vulgaris Beijerinck (Chlorophyceae)

A Review: Polyamines and Photosynthesis

Temperature-Responsive Bottlebrush Polymers Deliver a Stress-Regulating Agent In Vivo for Prolonged Plant Heat Stress Mitigation

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