花粉落在柱头上后，花粉与柱头间的信息传递与交换称为（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25866' and id < 2171408 and id<>'2171408' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25866' and id > 2171408 and id<>'2171408' order by id asc limit 5