Effects of light intensity on the anatomical structure, secretory structures, histochemistry and essential oil composition of Aeollanthus suaveolens Mart. ex Spreng. (Lamiaceae)

Barbosa, Suzana Marques; Abreu, Natália Do Couto; Oliveira, Mozaniel Santana de; Cruz, Jorddy Neves; Andrade, Eloísa Helena de Aguiar; Neto, M. A. M.; Gurgel, Ely Simone Cajueiro

doi:10.1016/j.bse.2021.104224

Cited by 9 publications

(6 citation statements)

References 71 publications

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“…Upon histochemical analysis on the transverse section of leaves from four Ericales plants, we found the presence of flavonoid, terpenes, and phenol containing tissues/ cells, and the absence of alkaloids (Table 1). In case alkaloid is present, the cells would be stained reddish-brown with Wagner's reagent Mercadante-Simoes et al 2014, Barbosa et al 2021) and stained brown with Dragendorff (Matias et al 2016, Gomez et al 2019, which did not show in this present study. Meanwhile, quinones were only detected in V. varingiaefolium leaves.…”

Section: Resultscontrasting

confidence: 54%

Histochemical Analysis of the Leaves of Four Ericales Medicinal Plants

Sabila¹,

Kusmardiyani²,

Insanu³

2022

Acta Pharm. Ind.

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Active chemical compounds from medicinal plants are mostly secondary metabolites that can be histochemically tested. It enables the identification and localization of diverse secondary metabolites within the tissue, which is not possible with screening phytochemicals. In this study, the histochemistry of the leaf blades of Ericales plants i.e., cantigi (Vaccinium varingiaefolium (Blume) Miq.), persimmon (Diospyros kaki Thunb.), sapodilla (Manilkara zapota (L.) van Royen), and star apple (Chrysophyllum cainito L.) were evaluated. These species have been reported as folk medicines that have secondary metabolites. Each leaf tissue was observed under a microscope, and phytochemical compounds presence and location were detected by using specific reagents. The results showed that those four leaves contained phenols, flavonoids, and terpenes, while quinones were only found in cantigi leaves. The secondary metabolites were present in the idioblast of parenchymal and epidermal tissues. The persimmon and star apple leaves had secretory cavities in trichomes with terpenes and phenolic compounds.

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Section: Resultscontrasting

confidence: 54%

Histochemical Analysis of the Leaves of Four Ericales Medicinal Plants

Sabila¹,

Kusmardiyani²,

Insanu³

2022

Acta Pharm. Ind.

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“…Leaves are the main site of photosynthesis, and changes in the anatomical characteristics of leaves will inevitably affect the photosynthetic efficiency of plants ( Jumrani and Bhatia, 2020 ; Knauer et al., 2020 ). It was found that the thinness of the upper and lower epidermis and palisade tissues, the presence of palisade tissue cells with a low aspect:axis ratio, and the loose arrangement of the spongy tissue cells could improve light transmission and chloroplast light capture ability ( Barbosa et al., 2021 ). This conclusion was further confirmed by the anatomical observation of leaves of C. betulus under different light intensities; that is, with the decrease in light intensity, the leaf thickness and presence of palisade tissue and spongy tissue of C. betulus decreased significantly, and the arrangement of cells in the spongy tissue gradually loosened, gradually increasing the gap between cells.…”

Section: Discussionmentioning

confidence: 99%

Responses of the growth, photosynthetic characteristics, endogenous hormones and antioxidant activity of Carpinus betulus L. seedlings to different light intensities

Zhou

Zhang

et al. 2022

Front. Plant Sci.

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Light is an important ecological factor that affects plant growth, survival and distribution. Carpinus betulus L. is native to central Europe and is used as an ornamental plant with strong adaptability. It is an important tree species for landscaping and timber use. What’s more, the antioxidant- and anticancer-related properties of C. betulus leaf extracts are remarkable, that make it a possible raw material for medicine. Light intensity is an important environmental factor affecting the growth and physicochemical changes of C. betulus, but the mechanism of its effect on this species still remains unknown. In this study, the growth, photosynthetic characteristics, endogenous hormones and antioxidant activity responses of C. betulus seedlings to four light intensity gradients (T0: normal light; T1: 75%; T2: 50%; T3: 25% of normal light) were studied after 60 days of shading treatments. The results showed a significant effect of low light intensity on the values of the growth and physiological parameters of C. betulus. The low light intensity caused the inhibition of plant biomass accumulation and the degradation of photosynthetic capacity and stomatal behavior and aggravated the cell membrane lipid peroxidation. However, the plant height growth, leaf area, specific leaf area, photosynthetic pigment content, and contents of GA3 and ABA of C. betulus increased with decreasing light intensity. We found that C. betulus can tolerate mild (T1) and moderate (T2) shading stress by developing photoprotective mechanisms and maintaining relatively high concentrations of organic osmolytes and high antioxidant enzyme activities (superoxide dismutase, peroxidase, catalase and ascorbate peroxidase), but the ability of C. betulus to synthesize osmotic substances and enzymatic antioxidants was impaired under severe shading conditions (T3). Our results suggest that C. betulus can make effective use of low light resources by adjusting its morphology, material distribution, photosynthetic rate and antioxidant enzyme system in suitable low-light environments (50%~75% of normal light); however, light intensity levels that are too low (25% of normal light) will have adverse effects on plant growth. The results of this study provide not only new insights into the response mechanisms of C. betulus to light intensity but also a scientific basis for the cultivation and application of C. betulus in China.

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“…According to Roshcina, secretory activity in plants expresses the ability to exchange substances and energy with the environment, and the secretory structure is influenced by the environment 19 . A study on Aeollanthus suaveolens’ s leaves anatomy displayed that the secretory cavities of Aeollanthus suaveolens’ s leaves exposed to dry and sunlight were significantly larger than those exposed to damp and cool conditions 20 . Studies on Pinaceae xylem anatomy revealed that extreme environmental conditions, including high temperatures, aridity, and cold winters, were associated with higher abundance and greater sizes of resin canals 21 .…”

Section: Introductionmentioning

confidence: 99%

Geographical distribution-based differentiation of cultivated Angelica dahurica, exploring the relationship between the secretory tract and the quality

Wu,

Jiang,

Yan

et al. 2023

Sci Rep

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Based on geographical distribution, cultivated Chinese Angelica dahurica has been divided into Angelica dahurica cv. ‘Hangbaizhi’ (HBZ) and Angelica dahurica cv. ‘Qibaizhi’ (QBZ). Long-term geographical isolation has led to significant quality differences between them. The secretory structure in medicinal plants, as a place for accumulating effective constituents and information transmission to the environment, links the environment with the quality of medicinal materials. However, the secretory tract differences between HBZ and QBZ has not been revealed. This study aimed to explore the relationship between the secretory tract and the quality of two kinds of A. dahurica. Root samples were collected at seven development phases. High-Performance Liquid Chromatography (HPLC) and Desorption Electrospray Ionization Mass Spectrometry Imaging (DESI-MSI) were used for the content determination and spatial location of coumarins. Paraffin section was used to observe and localize the root secretory tract. Origin, CaseViewer, and HDI software were used for data analysis and image processing. The results showed that compared to QBZ, HBZ, with better quality, has a larger area of root secretory tracts. Hence, the root secretory tract can be included in the quality evaluation indicators of A. dahurica. Additionally, DESI-MSI technology was used for the first time to elucidate the temporal and spatial distribution of coumarin components in A. dahurica root tissues. This study provides a theoretical basis for the quality evaluation and breeding of improved varieties of A. dahurica and references the DESI-MSI technology used to analyze the metabolic differences of various compounds, including coumarin and volatile oil, in different tissue parts of A. dahurica.

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Effects of light intensity on the anatomical structure, secretory structures, histochemistry and essential oil composition of Aeollanthus suaveolens Mart. ex Spreng. (Lamiaceae)

Cited by 9 publications

References 71 publications

Histochemical Analysis of the Leaves of Four Ericales Medicinal Plants

Histochemical Analysis of the Leaves of Four Ericales Medicinal Plants

Responses of the growth, photosynthetic characteristics, endogenous hormones and antioxidant activity of Carpinus betulus L. seedlings to different light intensities

Geographical distribution-based differentiation of cultivated Angelica dahurica, exploring the relationship between the secretory tract and the quality

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