First we need to recall that the sources of nutrients
include precipitation, dust, and to a limited extent, substrate
(Figure 1). Brown (1982) explains that bryophytes absorb
mineral nutrients over their entire surface. This ability is
promoted by two characteristics of bryophytes: a large
surface area to volume ratio, and a low surface resistance,
relative to tracheophytes, due to the limited development of
cuticle. This is further enhanced within the bryophyte by
typically having leaves of only one cell layer in thickness,
hence exposing every leaf cell directly to the nutrient
supply immediately. Actual entry into the cell is most
likely similar to that of tracheophytes.
First we need to recall that the sources of nutrientsinclude precipitation, dust, and to a limited extent, substrate(Figure 1). Brown (1982) explains that bryophytes absorbmineral nutrients over their entire surface. This ability ispromoted by two characteristics of bryophytes: a largesurface area to volume ratio, and a low surface resistance,relative to tracheophytes, due to the limited development ofcuticle. This is further enhanced within the bryophyte bytypically having leaves of only one cell layer in thickness,hence exposing every leaf cell directly to the nutrientsupply immediately. Actual entry into the cell is mostlikely similar to that of tracheophytes.
การแปล กรุณารอสักครู่..