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Patterns of xylem development: xylem in brown; arrows show direction of development from protoxylem to metaxylem. Xylem development can be described by four terms: centrarch, exarch, endarch and mesarch. As it develops in young plants, its nature changes from protoxylem to metaxylem (i.e. from first xylem to after xylem). The patterns in which ...
Dezső Magyar: Gábor Bódy, Tamás Szentjóby, György Cserhalmi: Banned after release Fényes szelek: Miklós Jancsó: Hosszú futásodra mindig számíthatunk: Gyula Gazdag: Isten hozta, őrnagy úr: Zoltán Fábri: Zoltán Latinovits, Imre Sinkovits: Based on the novel by István Örkény, entered into the 7th Moscow International Film Festival
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The presence of vessels in xylem has been considered to be one of the key innovations that led to the success of the flowering plants. It was once thought that vessel elements were an evolutionary innovation of flowering plants, but their absence from some basal angiosperms and their presence in some members of the Gnetales suggest that this hypothesis must be re-examined; vessel elements in ...
Unlike xylem (which is composed primarily of dead cells), the phloem is composed of still-living cells that transport sap. The sap is a water-based solution, but rich in sugars made by photosynthesis. These sugars are transported to non-photosynthetic parts of the plant, such as the roots, or into storage structures, such as tubers or bulbs. [14]
English: xylem (blue) carries water from the roots upwards phloem (orange) carries products of photosynthesis from the place of their origin (source) to organs where they are needed (roots, storage organs, flowers, fruits – sink); note that e.g. the storage organs may be source and leaves may be sink at the beginning of the growing season
Xylem in brown; arrows show direction of development from protoxylem to metaxylem.}} |Source ={{own}} |Author =Peter coxhead |Date =201 File usage The following page uses this file:
Magyar rekviem: Károly Makk: György Cserhalmi: Drama: Halálutak és angyalok: Zoltán Kamondi: Enikő Eszenyi: Drama: Screened at the 1991 Cannes Film Festival: A hetedik testvér: Jenő Koltai, Tibor Hernádi: Csongor Szalay (voice), Balázs Simonyi (voice), Álmos Elõd (voice) Animated fantasy-comedy-drama: Szerelmes szívek: György ...