Morphological, photosynthetic, and CAM physiological responses of the submerged macrophyte Ottelia alismoides to light quality

Wang, Liyuan; Han, Seungsu; Wang, Shanwei; Li, Wei; Huang, Wenmin

doi:10.1016/j.envexpbot.2022.105002

Cited by 12 publications

(8 citation statements)

References 53 publications

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“…The contents of chlorophyll a and b were determined according to Wang et al (2022). Leaves sample of 0.1 gram were chopped with a razor blade dan suspended in 10 ml ethanol 96% for 3 days in dark condition.…”

Section: Chlorophyll Analysismentioning

confidence: 99%

Epiphytic ferns and orchids adaptation mechanism based on stomatal structure and chlorophyll content in Urban Forest of Jember University, Indonesia

Ulum¹,

Setyati²,

Su’udi³

2023

LSB

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Epiphytic orchids and ferns in urban forests simulating a lowland tropical forest ecology were studied. This study aims to provide information about the epiphytes' adaptation to living in a dynamic microclimate of the tree canopy. Five epiphytes from the two taxa (orchids and ferns) were observed in their stomatal structure and chlorophyll contents. The stomatal type, size, and density were analysed with microscopic observation. The chlorophyll content was measured using a spectrophotometer. The orchids developed different mechanisms for water conservation compared to the ferns. Orchis develop smaller sizes and denser stomata to support photosynthesis rate as they had water absorbers and storage organs. On the other hand, ferns tend to avoid drought stress by developing fewer numbers and sparse stomata. The higher chlorophyll content in ferns was for photosynthesis efficiency purposes

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Section: Chlorophyll Analysismentioning

confidence: 99%

Epiphytic ferns and orchids adaptation mechanism based on stomatal structure and chlorophyll content in Urban Forest of Jember University, Indonesia

Ulum¹,

Setyati²,

Su’udi³

2023

LSB

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“…Ottelia alismoides is a species of aquatic plant that belongs to the family Hydrocharitaceae. It is commonly known as duck lettuce, water lettuce or water cabbage Kadono, 2001 andWang et al, 2022). Ottelia alismoides potential as a natural pesticide is still under study.…”

Section: Efficiency Of Ottelione On Adult Stage Mortality Of Cotton A...mentioning

confidence: 99%

Assessment of toxicological effects of some new plant extracts on cotton aphid, Aphis gossypii

Said¹,

El-Bokl²,

Ayyad

et al. 2023

Scientific Journal for Damietta Faculty of Science

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In contemporary ecological technologies, botanical pesticides are an alternative to synthetic chemical pesticides for pest management. These products pose no risk to the environment or to people's health. Plant extracts are preferred in contemporary organic agriculture due to a number of benefits. These items' variety is always growing, therefore it's important to understand how they work. This research was done to determine the toxicological effect of (Costunolide, Ottelione and Menthol) as plant extracts against Aphis gossypii. The result obtained that, the total mortality was 96.66%, 96.67% and 70% at the concentration of 5000, 1000 and 5000 from menthol, costunolide and ottelione, respectively. Generally with increasing the concentrations of plant extracts studied led to more mortality. Costunolide is the most effective compound that has sublethal concentration LC50, 81.9ppm followed by menthol with LC50 455.6 ppm then ottelione with LC50 1615.8 ppm. The most effective plant extract was Costunolide (Ti=100%), while the toxicity index being 17.97 and 4.15 % for Menthol and Ottelione, respectively. Now we have another option for controlling this pest by the strong efficiency demonstrated by this plant extracts.

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“…In addition to the negative impacts of heavy metals, environmental changes, such as eutrophication and water level fluctuations, can lead to reduced underwater light conditions, including changes in light intensity and quality, which may also be a core factor contributing to the decline of aquatic macrophytes [ 12 , 13 ]. Light quality is an essential factor of light conditions that can be perceived by plants through various photoreceptors, including cryptochrome, phytochrome, and phototropin [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, research on the response of aquatic plants to light quality remains limited [ 21 ]. Our recent study investigated the effects of monochromatic blue and red light on photomorphogenesis and photosynthetic physiology in the aquatic macrophyte Ottelia alismoides , revealing differential responses to these light qualities [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…Red and blue light are visible light wavelengths that primarily influence plant development and growth. For this purpose, P. crispus plants were exposed to Cd under white, red, and blue light provided by light-emitting diodes (LEDs), which offer continuous stability at specific wavelengths [ 13 ]. We evaluated the impact of Cd toxicity on P. crispus plants exposed to different light qualities by observing leaf morphology and organelle ultrastructure, as well as measuring photosynthesis and antioxidant system-related parameters.…”

Section: Introductionmentioning

confidence: 99%

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Blue Light Enhances Cadmium Tolerance of the Aquatic Macrophyte Potamogeton crispus

Wang

Zhang

et al. 2023

Plants

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Cadmium (Cd) is highly toxic and widely distributed in aquatic systems due to its high solubility and mobility in water, which can severely inhibit the survival of aquatic macrophytes. The phytotoxicity of Cd depends on environmental factors; however, it remains unclear whether and how light quality affects its toxicity on aquatic macrophytes. In this study, we investigated the effects of Cd on aquatic macrophytes Potamogeton crispus under different light qualities (white, blue, and red light). We evaluated morphological and photo-physiological traits, as well as the cellular antioxidant defense system. Our findings indicate that P. crispus under Cd stress showed notable damage in leaf morphology, decreased photosynthetic efficiency, inhibited HCO3− uptake, and reduced antioxidant enzyme activities, as well as oxidative damage indicated by MDA accumulation and superoxide (O2−) overproduction. However, compared with white or red light under Cd stress, blue light reduced structural damage and oxidative stress caused by Cd while increasing pigment synthesis and photosynthetic efficiency, as well as increasing ascorbate peroxidase (APX) activity. In conclusion, the changes induced by blue light in P. crispus’s photosynthesis and antioxidant system strengthen its tolerance to Cd. Further research on signal transmission in relation to light quality in Cd-exposed aquatic plants is still needed.

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Morphological, photosynthetic, and CAM physiological responses of the submerged macrophyte Ottelia alismoides to light quality

Cited by 12 publications

References 53 publications

Epiphytic ferns and orchids adaptation mechanism based on stomatal structure and chlorophyll content in Urban Forest of Jember University, Indonesia

Epiphytic ferns and orchids adaptation mechanism based on stomatal structure and chlorophyll content in Urban Forest of Jember University, Indonesia

Assessment of toxicological effects of some new plant extracts on cotton aphid, Aphis gossypii

Blue Light Enhances Cadmium Tolerance of the Aquatic Macrophyte Potamogeton crispus

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