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  • what is the difference between protonema and secondary protonema in mosses

what is the difference between protonema and secondary protonema in mosses?

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Primary protonema is only responsible for germination of spore whereas secondary protonema helps in the whole development of gametophytic part of plant
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VISHNU

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Primary protonema- develop directly from spore and it is creeping,green branched,mostly filamentous

Secondary protonema- it consists of upright slender axis bearing spirally arranged leaves,this stage bears sex organs like antheridia and archegonia

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Manasa

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