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In its stems and leaves, Heracleum sosnovskii Manden. contains furanocoumarins, which exert a phototoxic effect on humans. The aim of the investigations was to describe the external secretory structures of the epidermis and internal secretory tissues in organs responsible for emission of secretion that is toxic to human skin. The study was conducted using light and fluorescence microscopy. On the stems and leaves, various types of secretory trichomes with dispersed or deposited secretion were found. The trichomes were most abundant on the abaxial leaf surface. Epidermal cells and the secretion present on the trichomes exhibited intense fluorescence, which may indicate the presence of furanocoumarins in the tissue and trichome secretions. [ABSTRACT FROM AUTHOR]

Aesculus hippocastanum L. is an ornamental tree appreciated for its beautiful flowers and leaves. The flowers of this species contain secondary metabolites exhibiting pharmacological activity. They also produce essential oils and coloured "nectar guides", which enable insects to reach nectar and pollen. The aim of the study was to investigate the types and characteristics of chestnut flower trichomes, which may contain biologically active substances. The analyses were performed using light, fluorescence, and scanning electron microscopy. Three types of trichomes were found on the sepals and the surface of the ovary, whereas the corolla petals exhibited two types of hairs and papillae. The hairs differ in terms of their length and number of cells. The perianth and pistil had no capitate hairs, whereas the ovary exhibited the presence of colleters. Histochemical assays revealed that all the types of trichomes and papillae contained lipids or essential oils; hence, they can be classified as glandular structures. The "nectar guides" were characterised by higher density of secretory hairs than that on the rest of the petal surface, which implies that these petal fragments may emit stronger fragrance. [ABSTRACT FROM AUTHOR]

The article focuses on a research conducted to examine the nectar production and location and structure of the floral nectaries in the melliferous plant Daphne mezereum (D. mezereum) flowers. Topics discussed include high content of daphnin and coumarins in the D. mezereum's bark and Daphne odora's leaf buds, secretion of nectar onto the nectary surface of the stomata, and role of corolla filled with nectar in attracting bees and butterflies to the flower.

The article focuses on a research conducted to examine the micromorphology of pollen grains of three apricot species Prunus armeniaca cultivars including Early Orange, Harcot, and Wczesna z Morden using scanning electron microscopy and light microscopy. Topics discussed include study's aim to determine shape, size, and exine ornamentation of the species, large distance in the striae observed in Harcot pollen grains, and perforation in tectum of Prunus armeniaca's pollen grains.

Regardless of whether the articles they examined were ultimately published, the editors would like to express their appreciation and thank the following reviewers for the time and dedication that they have shown I Plants i : ht Footnotes 1 B Disclaimer/Publisher's Note: b The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). I Plants i was able to uphold its high standards for published papers due to the outstanding efforts of our reviewers. Thanks to the efforts of our reviewers in 2022, the median time to first decision was 14 days and the median time to publication was 36 days. [Extracted from the article]

Thanks to the contribution of our reviewers, in 2021, the median time to first decision was 13 days and the median time to publication was 34 days. Thanks to the great efforts of our reviewers, I Plants i was able to maintain its standards for the high quality of its published papers. Rigorous peer-reviews are the basis of high-quality academic publishing. [Extracted from the article]

The editors would like to express their sincere gratitude to the following reviewers for their precious time and dedication, regardless of whether the papers were finally published: Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that I Applied Sciences i maintains its standards for the high quality of its published papers. [Extracted from the article]

Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that I Metabolites i maintains its standards for the high quality of its published papers. [Extracted from the article]

Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that the I International Journal of Molecular Sciences i maintains its standards for the high quality of its published papers. Thanks to the cooperation of our reviewers, in 2020, the median time to first decision was 15 days and the median time to publication was 33 days. [Extracted from the article]