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زیست شناسی - بافت اسکلرانشیم

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بافت اسکلرانشیم

» نوع مطلب : خلاصه درس ،

اسکلرانشیم:

—        ابتدا زنده ، اما بعد می میرند

—     .................................

 

برای مشاهده متن کامل روی ادامه مطلب کلیک کنید

اسکلرانشیم:

—        ابتدا زنده ، اما بعد می میرند

—        دیواره ی دومین ضخیم دارند

—        دیواره ی دومین سرشار از چوب یا لیگنین است

—        دو نوع هستند :

                             1- فیبر : باریک و بلند و لابلای سایربافتها

                             2- اسکلرئید : کوتاه و منشعب ودر پوشش

                                    دانه ها و میوه ها هستند


نوشته شده در : دوشنبه 20 دی 1389  توسط : نارسیس .    نظرات() .

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