Flavonoid Compounds and Photosynthesis in Passiflora Plant Leaves under Varying Light Intensities

Ni, Yu-Wan; Lin, Kuan–Hung; Chen, Kai-Hsien; Wu, Chun-Wei; Chang, Yu‐Sen

doi:10.3390/plants9050633

Cited by 24 publications

(17 citation statements)

References 47 publications

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“…Flavonoid biosynthesis is light-dependent. Higher light intensities stimulate the flavonoids synthesis in Passiflora suberosa L., which protects the plants from HL damage, as documented by Ni et al [ 290 ]. Moreover, Stewart et al [ 291 ] narrated about water-insoluble antioxidant carotenoids (the xanthophylls zeaxanthin and lutein as well as β-carotene), which maintain the higher growth rate in Lemna gibba L. even under very HL (700 µmol photons m −2 s −1 , 7 d).…”

Section: Antioxidant Metabolism and The Detoxification Of Ros Undementioning

confidence: 88%

Regulation of ROS Metabolism in Plants under Environmental Stress: A Review of Recent Experimental Evidence

Hasanuzzaman

Bhuyan

Parvin

et al. 2020

IJMS

303

146

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Various environmental stresses singly or in combination generate excess amounts of reactive oxygen species (ROS), leading to oxidative stress and impaired redox homeostasis. Generation of ROS is the obvious outcome of abiotic stresses and is gaining importance not only for their ubiquitous generation and subsequent damaging effects in plants but also for their diversified roles in signaling cascade, affecting other biomolecules, hormones concerning growth, development, or regulation of stress tolerance. Therefore, a good balance between ROS generation and the antioxidant defense system protects photosynthetic machinery, maintains membrane integrity, and prevents damage to nucleic acids and proteins. Notably, the antioxidant defense system not only scavenges ROS but also regulates the ROS titer for signaling. A glut of studies have been executed over the last few decades to discover the pattern of ROS generation and ROS scavenging. Reports suggested a sharp threshold level of ROS for being beneficial or toxic, depending on the plant species, their growth stages, types of abiotic stresses, stress intensity, and duration. Approaches towards enhancing the antioxidant defense in plants is one of the vital areas of research for plant biologists. Therefore, in this review, we accumulated and discussed the physicochemical basis of ROS production, cellular compartment-specific ROS generation pathways, and their possible distressing effects. Moreover, the function of the antioxidant defense system for detoxification and homeostasis of ROS for maximizing defense is also discussed in light of the latest research endeavors and experimental evidence.

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Section: Antioxidant Metabolism and The Detoxification Of Ros Undementioning

confidence: 88%

Regulation of ROS Metabolism in Plants under Environmental Stress: A Review of Recent Experimental Evidence

Hasanuzzaman

Bhuyan

Parvin

et al. 2020

IJMS

303

146

View full text Add to dashboard Cite

show abstract

“…The previous studies also indicated that chlorophyll could be synthesized only in light; thus, extending the photoperiod was beneficial for the synthesis of photosynthetic pigments [44]. In addition, Ni et al [45] indicated that the shading treatment (15% light intensity, 85% shaded) could promote Passiflora plant (Tainung No. 1) growth in SPAD compared with the non-shaded treatment, suggesting that long-term low-light-intensity treatment increased the relative chlorophyll concentration per leaf area in Passiflora plants.…”

Section: Impacts Of Supplementary Light Duration and Light Intensity On Photosynthetic Characteristics Of Cucumber Seedlingsmentioning

confidence: 98%

Morphological and Physiological Properties of Greenhouse-Grown Cucumber Seedlings as Influenced by Supplementary Light-Emitting Diodes with Same Daily Light Integral

Yan

Wang

et al. 2021

Horticulturae

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Insufficient light in autumn–winter may prolong the production periods and reduce the quality of plug seedlings grown in greenhouses. Additionally, there is no optimal protocol for supplementary light strategies when providing the same amount of light for plug seedling production. This study was conducted to determine the influences of combinations of supplementary light intensity and light duration with the same daily light integral (DLI) on the morphological and physiological properties of cucumber seedlings (Cucumis sativus L. cv. Tianjiao No. 5) grown in a greenhouse. A supplementary light with the same DLI of 6.0 mol m−2 d−1 was applied with the light duration set to 6, 8, 10, or 12 h d−1 provided by light-emitting diodes (LEDs), and cucumber seedlings grown with sunlight only were set as the control. The results indicated that increasing DLI using supplementary light promoted the growth and development of cucumber seedlings over those grown without supplementary light; however, opposite trends were observed in the superoxide dismutase (SOD) and catalase (CAT) activities. Under equal DLI, increasing the supplementary light duration from 6 to 10 h d−1 increased the root surface area (66.8%), shoot dry weight (24.0%), seedling quality index (237.0%), root activity (60.0%), and stem firmness (27.2%) of the cucumber seedlings. The specific leaf area of the cucumber seedlings decreased quadratically with an increase in supplementary light duration, and an opposite trend was exhibited for the stem diameter of the cucumber seedlings. In summary, increased DLI or longer light duration combined with lower light intensity with equal DLI provided by supplementary light in insufficient sunlight seasons improved the quality of the cucumber seedlings through the modification of the root architecture and stem firmness, increasing the mechanical strength of the cucumber seedlings for transplanting.

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“…Moreover, there were clear increases in TF, OR, and IV content in 'Tainung 1' and 'P. suberosa' in LI-50 and LI-100 treatments compared to the LI-15 treatment (Ni et al, 2020). In the present study, temperature influences plant growth, Chl content, and different responses by bioactive compounds in HC leaves, information which can be used to optimize the growth and development of plants in controlled-temperature settings.…”

Section: Discussionmentioning

confidence: 51%

Effects of temperatures on growth, physiological, and antioxidant characteristics in Houttuynia cordata

Lin

et al. 2021

Not Bot Horti Agrobo

Self Cite

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Houttuynia cordata Thunb. (HC) is a traditional medicinal plant with a variety of pharmaceutical activities. The objective of this study was to investigate the growth, photosynthetic parameters, and antioxidant properties of HC plants in response to various temperatures. Pots of HC plants were maintained in day/night temperatures of 15/10 °C, 20/15 °C, 25/20 °C (control), 30/25 °C, and 35/30 °C for two months in each of five growth chambers having a 13.5 h photoperiod at 396, 432, 474, 449, and 619 µmol·m-2·s-1 radiation, respectively. Eight plants for each temperature were randomly placed in a growth chamber. HC plants survived at 30/25 °C and 35/30 °C treatments and had significantly higher plant heights, leaf numbers, and soil-plant analysis development (SPAD) and normalized difference vegetation index (NDVI) values compared to other treatments. However, long-term 35/30 °C treatment caused reductions in leaf length and width, significantly decreasing shoot and leaf fresh weight (FW) and dry weight (DW) compared to 30/25 °C treatment and controls. These results indicate that HC leaf development was affected during the 35/30 °C treatment, and that both SPAD and NDVI can help in advancing our understanding of the photosynthesis process in HC. Moreover, all plants subjected to 15/10 °C suffered more severely in all traits and parameters than other treatments. Therefore, HC plants tended to be heat-tolerant and exhibited adaptive morphologic plasticity to 30/25 °C conditions. Positive and significant correlations were observed among temperatures and total phenolics (TP), total flavonoids (TF), chlorogenic acid (CGA), and hyperoside (HO) content, and all bioactive contents increased as temperature increased, except that both CGA and HO content were remarkably decreased after 30/25 °C treatment. Thus, 30/25 °C treatment would be more beneficial for high marketability resulting from increased leaf number, DW, and all secondary metabolites compared to other treatments, and for use as a health food and for medicinal purposes. In addition, leaf growth, physiological parameters, and secondary metabolite accumulations in HC plants can be optimized for commercial production via temperature control technologies. This approach may also be applicable to leafy vegetables to produce stable industrial supplies having high leaf yields and metabolite content.

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Flavonoid Compounds and Photosynthesis in Passiflora Plant Leaves under Varying Light Intensities

Cited by 24 publications

References 47 publications

Regulation of ROS Metabolism in Plants under Environmental Stress: A Review of Recent Experimental Evidence

Regulation of ROS Metabolism in Plants under Environmental Stress: A Review of Recent Experimental Evidence

Morphological and Physiological Properties of Greenhouse-Grown Cucumber Seedlings as Influenced by Supplementary Light-Emitting Diodes with Same Daily Light Integral

Effects of temperatures on growth, physiological, and antioxidant characteristics in Houttuynia cordata

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