Web14 nov 2024 · A druse is a group of crystals of calcium oxalate, silicates, or carbonates present in plants, and are thought to be a defense against herbivory due to their toxicity. These plants accumulate oxalate in the range of 3–80% (w/w) of their dry weight … WebAnnual herb; stems up to c. 60 cm long, armed with 4-rayed stalked glochids and sessile 4–8-rayed stellate hairs. Leaves opposite; blade ovate to orbicular in outline, 2–7 x 3–8 cm, rather shallowly 3-lobed, sparsely strigulose above with simple and forked hairs, with …
Drusa glandulosa in Global Plants on JSTOR
Web16 mag 2024 · Many plant species produce crystal inclusions as a defense mechanism against herbivory. Most crystalline aggregations, or druse crystals, found in plants are made of calcium oxalate, which is the compound that most frequently forms kidney stones in humans. If ingested, the material is poisonous to humans as well as to most animals. WebLeaves opposite; blade ovate to orbicular in outline, 2–7 x 3–8 cm, rather shallowly 3-lobed, sparsely strigulose above with simple and forked hairs, with sessile or stalked stellate hairs and often a few glochids below; petioles up to 10 cm long, with glochids and stellate hairs. Umbels subcapitate, 1–5-flowered, on up to 4 cm long ... relentless 64
Plant calcium oxalate crystal formation, function, and its …
Web10 lug 2024 · I drusi: una comunità con radici molto profonde I drusi sono una delle minoranze religiose più consistenti in Medio Oriente: circa un milione di persone, con comunità diffuse in diversi paesi del Mediterraneo, e … WebTipicamente, le d. sono costituite da una bipiramide del sistema tetragonale sulle cui facce sono impiantati tanti piccoli cristalli piramidali o bipiramidali, più o meno incompleti. Le d. si possono trovare nei parenchimi di tutti gli organi, specialmente in quello dei raggi midollari. Webdrusa druṡa s. f. [dal fr. druse, che è dal ted. Druse, propr. «gromma»]. – 1. In mineralogia, aggruppamento di cristalli impiantati sulle superfici più o meno pianeggianti delle fratture di una roccia ( matrice della drusa ). 2. relentless academy