詞語:metaxylem
metaxylem的解釋
metaxylem[,metə'zailem]n. [植]後生木質部
metaxylem的意思
metaxylem 後生木質部;次生木質部;晚成木質部;後生木質部 由形成層分裂產生之木質部;
metaxylem的參考例句
1.It consists of the protoxylem (formed first) and metaxylem. 包括原生木質部(最早形成的)和後生木質部。
2.It is found in protoxylem and first metaxylem tracheids and vessels. 可在原生木質部和初始後生木質部的管胞和導管中見到。
3.These cells began to devise, then developed into aloin cells through enlargement of volume and vacuolization with the differentiation of metaphloem and metaxylem. 在後生韌皮部和木質部發育成熟過程中,這些細胞體積逐漸增大,並液泡化,發育成為大型薄壁細胞(蘆薈素細胞),位於篩管外側。