Claim · model-written summary
Anoxia rapidly depolarized both bean hypocotyl membrane potentials.
- Taxon
- beant0
- Organ / stage
- hypocotyl segmentst0
- Treatment
- anoxiae0
- Outcome
- membrane potentialse0
- Direction
- depolarizede0
Not reportedComparator
Verbatim
e0“Both the membrane potentials, Vps (electric potential difference between parenchyma symplast and organ surface) and Vpx (electric potential difference between parenchyma symplast and xylem), were rapidly depolarized by anoxia”
t0“bean hypocotyl segments”
Title
Akiko Mizuno; Kiyoshi Katou; Hisashi Okamoto Plant and Cell Physiology 1980. doi:10.1093/oxfordjournals.pcp.a076015
Other claims from this paper (8)
- Intervention effect Re-aeration repolarized bean hypocotyl membrane potentials.
- Intervention effect Anoxia reduced bean hypocotyl growth rate by about 85%.
- Intervention effect Re-aeration restored bean hypocotyl growth rate.
- Observation Bean hypocotyl membrane potential changes preceded growth-rate changes by 30–50 seconds.
- Intervention effect IAA aerosol hyperpolarized Vps in bean hypocotyls after about eight minutes.
- Intervention effect IAA increased bean hypocotyl growth rate to ten times the control rate after a delay.
- Mechanism Increased respiration-dependent ion pump activity at the outer parenchyma membrane explained Vps hyperpolarization.
- Association Bean hypocotyl growth rate correlated with ion pump activity as IAA concentration changed.