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protoxylem

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pro·to·xy·lem  (prt-zlm)
n.
The first formed xylem that differentiates from the procambium.

protoxylem [ˌprəʊtəˈzaɪləm]
n
(Life Sciences & Allied Applications / Botany) the first-formed xylem tissue, consisting of extensible thin-walled cells thickened with rings or spirals of lignin Compare metaxylem

protoxylem  (prt-zlm)
The first formed xylem that differentiates from the procambium.


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Embolisms and refilling in the maize leaf lamina, and the role of the protoxylem lacuna.
 
 
 
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