Natale Sara, Canella Marco, Moschin Silvia, Baldan Barbara, Alboresi Alessandro, La Rocca Nicoletta, Dal Grande Francesco
Department of Biology, University of Padova, 35123 Via Ugo Bassi 58/B, Padova, Italy.
National Biodiversity Future Center, Palermo, Italy.
BMC Res Notes. 2024 Dec 19;17(1):367. doi: 10.1186/s13104-024-07021-1.
The adaxial leaf surface of butterworts (Pinguicula L.) presents specialized structures for carnivory, such as trichomes and sessile glands. The micromorphology of abaxial leaf surfaces has rarely been investigated; therefore, this study aimed to compare the micromorphology of adaxial and abaxial surfaces through electron scanning microscopy (SEM) and light microscopy (LM). We selected four species occurring in the Eastern Alps. All the species showed the same pattern: trichomes and sessile glands occurring only on the adaxial surface; stomata occurring on both surfaces with significant differences in density and size; and four-cells glands occurring only on the abaxial surface. The four-cells gland is a micromorphological structure that has never been described before, and its eco-physiological function needs to be investigated.
捕虫堇属（Pinguicula L.）植物叶片的近轴面具有用于捕食的特殊结构，如毛状体和无柄腺。远轴面叶片的微观形态很少被研究；因此，本研究旨在通过电子扫描显微镜（SEM）和光学显微镜（LM）比较近轴面和远轴面的微观形态。我们选择了四种生长在东阿尔卑斯山的物种。所有物种都呈现出相同的模式：毛状体和无柄腺仅出现在近轴面；气孔出现在两个表面，密度和大小有显著差异；四细胞腺体仅出现在远轴面。四细胞腺体是一种以前从未被描述过的微观形态结构，其生态生理功能需要进一步研究。
