Claim · model-written summary
In the field, relative water content of Nicotiana glauca did not decrease with drought.
Nicotiana glaucaVerbatim
t0“in the cosmopolitan invader Nicotiana glauca”
e0“In the field, water potential, photosynthetic rate (A) and stomatal conductance (gs), but not relative water content (RWC) decreased because of drought”
Title
Ecophysiological responses to drought and salinity in the cosmopolitan invader Nicotiana glauca
Armando González; Wilmer Tezara; Elizabeth Rengifo; et al. Brazilian Journal of Plant Physiology 2012. doi:10.1590/s1677-04202012000300008
Other claims from this paper (12)
- Association In the field, drought decreased water potential, photosynthetic rate (A) and stomatal conductance (gs) of Nicotiana glauca.
- Intervention effect Manual removal of epicuticular wax increased excess energy dissipation through non-photochemical quenching in Nicotiana glauca.
- Intervention effect Manual removal of epicuticular wax did not alter the capacity of photochemical quenching in Nicotiana glauca.
- Intervention effect In the greenhouse, water deficit as well as salinity resulted in osmotic adjustment in Nicotiana glauca.
- Intervention effect At the end of the experiment, turgor potential and relative water content under water deficit were similar to control.
- Intervention effect At the end of the experiment, turgor potential and relative water content were higher under salinity than in control.
- Intervention effect Water deficit and salinity markedly decreased photosynthetic rate (A) and stomatal conductance (gs) in Nicotiana glauca.
- Intervention effect Natural drought, salinity or experimental water deficit caused very few or no changes in potential quantum efficiency of PSII in Nicotiana glauca.
- Mechanism The change in potential quantum efficiency of PSII could be explained partly by an increased non-photochemical quenching.
- Mechanism Partial tolerance to drought and salinity in Nicotiana glauca rests on water conservation through stomatal closure and osmotic adjustment.
- Mechanism Nicotiana glauca traits confer advantages to invade disturbed areas subject to salinity or seasonal drought under high irradiance.
- Mechanism Leaf wax reduces absorption of excess radiation in Nicotiana glauca.