Assertion: peristome | /r/HasProperty | open
Facets:
value: always
type: DEGREE
value: in dry conditions
type: TEMPORAL
value: for at least 1 h
type: TEMPORAL
Source sentences:
text: It has been suggested that the main reason is to prevent spore release under wet conditions, and only allow dispersal during dry conditions when the peristome is open and spores can be shaken out by forces such as the wind (Ingold 1965 ), while others have suggested that the peristome movement in itself actively promotes spore release (Lazarenko 1957 ; Mueller 1973 ).
text: We also tested the number of spores being released from the capsule in response to induced vibrations, when the peristome was closed (wet conditions) and after it had been open for at least 1 h (dry conditions).
text: 1c since the capsule opening is closed, but in contrast to our expectations, the same was also observed for most capsules when the peristome was open in dry conditions.
text: However, we believe that very strong vibrations of the capsule may still cause substantial spore release, as shown for species having a peristome that is always open (Johansson et al . 2014), and for the release of seeds (Kadereit & Leins 1988) and pollen (Urzay et al . 2009; Timerman et al . 2014).