Photosynthesis is sensitive to nitric oxide and respiration sensitive to hydrogen peroxide: Studies with pea mesophyll protoplasts

Sunil, Bobba; Rajsheel, Pidakala; Aswani, Vetcha; Bapatla, Ramesh B.; Talla, Sai Krishna; Raghavendra, Agepati S.

doi:10.1016/j.jplph.2020.153133

Cited by 4 publications

(7 citation statements)

References 67 publications

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“…This could be the reason for the increased chlorophyll content ( Figure 2 ) and total yield ( Table 3 ) compared to the control, as shown in barley [ 102 ] and wheat [ 103 ]. This could also indicate that ALA stabilized the integrity of the chloroplast structure and delayed its degradation under drought stress conditions [ 104 ]. It was also reported that ALA upregulated the expressional level of the genes encoding ribulose-1,5-biphosphate carboxylase/oxygenase (RuBisCo) (i.e., BnRBCL and BnRBCS ) and other genes, such as BnUGT79B1 , BnMYB12, and MYB28, that regulate the synthesis of phenolic compounds and glucosinolates, respectively [ 105 ].…”

Section: Discussionmentioning

confidence: 99%

5-Aminolevulinic Acid and 24-Epibrassinolide Improve the Drought Stress Resilience and Productivity of Banana Plants

Helaly

El-Hoseiny

Elsheery

et al. 2022

Plants

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Plant growth, development, and productivity are adversely affected under drought conditions. Previous findings indicated that 5-aminolevulinic acid (ALA) and 24-epibrassinolide (EBL) play an important role in the plant response to adverse environmental conditions. This study demonstrated the role of ALA and EBL on oxidative stress and photosynthetic capacity of drought-stressed ‘Williams’ banana grown under the Egyptian semi-arid conditions. Exogenous application of either ALA or EBL at concentrations of 15, 30, and 45 mg·L−1 significantly restored plant photosynthetic activity and increased productivity under reduced irrigation; this was equivalent to 75% of the plant’s total water requirements. Both compounds significantly reduced drought-induced oxidative damages by increasing antioxidant enzyme activities (superoxide dismutase ‘SOD’, catalase ‘CAT’, and peroxidase ‘POD’) and preserving chloroplast structure. Lipid peroxidation, electrolyte loss and free non-radical H2O2 formation in the chloroplast were noticeably reduced compared to the control, but chlorophyll content and photosynthetic oxygen evolution were increased. Nutrient uptake, auxin and cytokinin levels were also improved with the reduced abscisic acid levels. The results indicated that ALA and EBL could reduce the accumulation of reactive oxygen species and maintain the stability of the chloroplast membrane structure under drought stress. This study suggests that the use of ALA or EBL at 30 mg·L−1 can promote the growth, productivity and fruit quality of drought-stressed banana plants.

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Section: Discussionmentioning

confidence: 99%

5-Aminolevulinic Acid and 24-Epibrassinolide Improve the Drought Stress Resilience and Productivity of Banana Plants

Helaly

El-Hoseiny

Elsheery

et al. 2022

Plants

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“…We emphasize that both photosynthesis and respiration are sensitive to GSNO. The inhibition of photosynthesis by SNP, another NO-donor, was reported in mesophyll protoplasts and leaves of pea (6,19,30). However, the exact mechanism of NO action was still unknown.…”

Section: Discussionmentioning

confidence: 94%

“…The suppression of photosynthesis and respiration was moderate in the presence of GSNO (Figure 2). The inhibition by NO of photosynthesis was known (6,19). But there were only a few studies on the NO effect on respiration (28,29).…”

Section: Discussionmentioning

confidence: 99%

“…A common consequence of abiotic/biotic stress is the increase in both reactive oxygen species (ROS) and nitric oxide (NO) levels in plant cells (3,4). ROS and NO could exert multiple effects on photosynthetic and mitochondrial metabolisms (5,6). The impact of ROS on photosynthesis was studied by several groups (7,8), while the studies with NO are just catching up (9).…”

Section: Introductionmentioning

confidence: 99%

“…The variation in the reports appeared to be due to different NO-donors (17) or different instruments used for monitoring Chl fluorescence. Most of the experiments were done with leaves, e.g., pea (17) and potato (18), while some were with protoplasts of pea (6,19).…”

Section: Introductionmentioning

confidence: 99%

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Modulation by S-nitrosoglutathione (a natural nitric oxide donor) of photosystem in Pisum sativum leaves, as revealed by chlorophyll fluorescence: Light-dependent aggravation of nitric oxide effects

Saini

Baptala²,

Pandey³

et al. 2023

Plant Sci. Today

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The reported effects of nitric oxide (NO), a signaling molecule, on the photochemical components of leaves are ambiguous. We examined the changes by a natural NO donor, S-nitrosoglutathione (GSNO). The effect of GSNO on Pisum sativum leaves was studied after a 3-hour exposure in dark, moderate (ML), or high light (HL). The NO levels in GSNO-treated samples were at their maximum under HL, compared to those under ML or dark. Most of the elevated NO was decreased by 2-4-carboxyphenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (cPTIO), a NO scavenger, confirming the NO increase. Treatment with GSNO caused inhibition of photosynthesis/respiration and restricted electron transport mediated by both photosystem (PS)II and PSI. However, the inhibition by NO-donor of PSII components was stronger than those of PSI. A marked increase in the PSI acceptor side limitation [Y(NA)] and a decrease in PSI donor side limitation [Y(ND)] indicated an upregulation of cyclic electron transport, possibly to balance the damage to PSII by GSNO. We suggest that NO aggravated the HL-induced inhibition of photosynthesis and dark respiration.

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Silicon application improves strawberry plant antioxidation ability and fruit nutrition under both full and deficit irrigation

Zou²,

Li³

et al. 2023

Scientia Horticulturae

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Photosynthesis is sensitive to nitric oxide and respiration sensitive to hydrogen peroxide: Studies with pea mesophyll protoplasts

Cited by 4 publications

References 67 publications

5-Aminolevulinic Acid and 24-Epibrassinolide Improve the Drought Stress Resilience and Productivity of Banana Plants

5-Aminolevulinic Acid and 24-Epibrassinolide Improve the Drought Stress Resilience and Productivity of Banana Plants

Modulation by S-nitrosoglutathione (a natural nitric oxide donor) of photosystem in Pisum sativum leaves, as revealed by chlorophyll fluorescence: Light-dependent aggravation of nitric oxide effects

Silicon application improves strawberry plant antioxidation ability and fruit nutrition under both full and deficit irrigation

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