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PUSTLOKh

pustlox PUSTLOKh , pustlokhi rastani (cortex), qismi rui kambiygii Poya (nig. Kambiy) va reshai rastani; az boftahoi sokhtu paydoishashon gunogun tarkib yoftaast. Pustlokh yakumin va duyumin meshavad. Pustlokhi ya k u m i n dar makhruti sabzish aa qabathoi berunii meristema dar bayni boftahoi yakumini ruypush (dar Poya epidermis va dar resha epiblema) va silindri markazi tashakkul meyobad. Pustlokhi yakumin odatan az parenkhimaho iborat ast, ki dar reshai tamomi rastaniho va dar dupallaihoyu luchtukhmho boshad, dar reshapoya va Poya ham nagz inkishof yoftaast. Dar poyai rastanihoi dupalla qismi beruni Pustlokhi yakumin asosan kollenkhima buda, dar reshai rastanihoi yakpalla ekzoderma ast. Sathi ba silindri markazi hamshafati Pustlokhi yakumin (endoderma) na hama vaqt ravshan ayon ast. Pustlokhi duyumin (floemai duyumin yo lif) az kambiy ba vujud omada, az naychahoi elakshakl, narenkhimahoi lifi, nakhhoi mekhaniki iborat mebo­shad va dar davomi 1—2 sol baroi az bolo ba poyoni rastani guzaronidani mahsuli fotosintez khizmat mekunad. Pustlokhi kuhna in vazifaro ijro namekunad va qabat-qabat judo shuda, pukro ba vuchud meorad, ki ba tarkibi Pustlokhi bisyor darakhton dokhil meshavad; chubro az tasiri mekhanikiyu khimiyavi muhofizat me­kunad (nig. niz Poya, Resha).

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SAFEDAHO

SAFEDAHO, proteinho, moddahoi organikii kalonmolekulai tabiiero guind, ki az aminokislotaho tarkib yofta dar sokhtu faoliyati …