@article{fdi:010084259,
  title = {{D}rought stress recovery of hydraulic and photochemical processes in {N}eotropical tree saplings},
  author = {{M}anzi, {O}. {J}. {L}. and {B}ellifa, {M}. and {Z}iegler, {C}. and {M}ihle, {L}. and {L}evionnois, {S}. and {B}urban, {B}. and {L}eroy, {C}{\'e}line and {C}oste, {S}. and {S}tahl, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}limate models predict an increase in the severity and the frequency of droughts. {T}ropical forests are among the ecosystems that could be highly impacted by these droughts. {H}ere, we explore how hydraulic and photochemical processes respond to drought stress and re-watering. {W}e conducted a pot experiment on saplings of five tree species. {B}efore the onset of drought, we measured a set of hydraulic traits, including minimum leaf conductance, leaf embolism resistance and turgor loss point. {D}uring drought stress, we monitored traits linked to leaf hydraulic functioning (leaf water potential ({P}si(md)) and stomatal conductance (g(s))) and traits linked to leaf photochemical functioning (maximum quantum yield of photosystem {II} ({F}-v/{F}-m) and maximum electron transport rate ({ETR}max)) at different wilting stages. {A}fter re-watering, the same traits were measured after 3, 7 and 14 days. {H}ydraulic trait values decreased faster than photochemical trait values. {A}fter re-watering, the values of the four traits recovered at different rates. {F}-v/{F}-m recovered very fast close to their initial values only 3 days after re-watering. {T}his was followed by {ETR}max, {P}si(md) and g(s). {F}inally, we show that species with large stomatal and leaf safety margin and low pi(tlp) are not strongly impacted by drought, whereas they have a low recovery on photochemical efficiency. {T}hese results demonstrate that pi(tlp), stomatal and leaf safety margin are a good indicators of plant responses to drought stress and also to recovery for photochemical efficiency.},
  keywords = {{REGION} {NEOTROPICALE} ; drought ; hydraulics ; photochemical process ; recovery ; re-watering ; saplings ; {AMERIQUE} {LATINE}},
  booktitle = {},
  journal = {{T}ree {P}hysiology},
  volume = {42},
  numero = {1},
  pages = {114--129},
  ISSN = {0829-318{X}},
  year = {2022},
  DOI = {10.1093/treephys/tpab092},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084259},
}