Xylem efficiency vs. safety acclimation to drought of seedling root anatomy for six Patagonian shrub species
With the aim to seek evidences on the possible trade off between hydraulic efficiency and hydraulic safety, from both an evolutionary and an acclimation point of view, we compared root xylem anatomy and derived functional properties for seedlings of six Patagonian shrub species grown in a greenhouse under two levels of water availability [control and drought]. Root central cylinder area, vessel diameter [b] and double-wall thickness [t] were measured; from these data, the sum of vessel radii to the fourth power and wall strength [[t/b]2] were calculated as indicators of hydraulic efficiency and safety respectively. Across species, we observed only a weak negative correlation between hydraulic efficiency and hydraulic safety. Within species, Lycium chilense, the species with the most mesic leaves of the group, showed significant acclimation to drought for both functional attributes, lowering efficiency and increasing safety by developing a higher proportion of small and more resistant xylem vessels.
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Subjects: | ANARTHROPHYLLUM RIGIDUM, CHUQUIRAGA AUREA, CHUQUIRAGA KINGII, HYDRAULIC EFFICIENCY, HYDRAULIC SAFETY, LYCIUM CHILENSE, MULINUM SPINOSUM, ANATOMY, CORRELATION, DIAMETER, DROUGHT STRESS, GREENHOUSE ECOSYSTEM, SEEDLING ESTABLISHMENT, SHRUB, WATER AVAILABILITY, XYLEM, ANARTHROPHYLLUM, CHUQUIRAGA, LYCIUM, |
Online Access: | http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46489 |
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KOHA-OAI-AGRO:464892022-10-26T12:04:24Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46489AAGXylem efficiency vs. safety acclimation to drought of seedling root anatomy for six Patagonian shrub speciesDurante, M.Maseda, Pablo HoracioFernández, Roberto Javiertextengapplication/pdfWith the aim to seek evidences on the possible trade off between hydraulic efficiency and hydraulic safety, from both an evolutionary and an acclimation point of view, we compared root xylem anatomy and derived functional properties for seedlings of six Patagonian shrub species grown in a greenhouse under two levels of water availability [control and drought]. Root central cylinder area, vessel diameter [b] and double-wall thickness [t] were measured; from these data, the sum of vessel radii to the fourth power and wall strength [[t/b]2] were calculated as indicators of hydraulic efficiency and safety respectively. Across species, we observed only a weak negative correlation between hydraulic efficiency and hydraulic safety. Within species, Lycium chilense, the species with the most mesic leaves of the group, showed significant acclimation to drought for both functional attributes, lowering efficiency and increasing safety by developing a higher proportion of small and more resistant xylem vessels.With the aim to seek evidences on the possible trade off between hydraulic efficiency and hydraulic safety, from both an evolutionary and an acclimation point of view, we compared root xylem anatomy and derived functional properties for seedlings of six Patagonian shrub species grown in a greenhouse under two levels of water availability [control and drought]. Root central cylinder area, vessel diameter [b] and double-wall thickness [t] were measured; from these data, the sum of vessel radii to the fourth power and wall strength [[t/b]2] were calculated as indicators of hydraulic efficiency and safety respectively. Across species, we observed only a weak negative correlation between hydraulic efficiency and hydraulic safety. Within species, Lycium chilense, the species with the most mesic leaves of the group, showed significant acclimation to drought for both functional attributes, lowering efficiency and increasing safety by developing a higher proportion of small and more resistant xylem vessels.ANARTHROPHYLLUM RIGIDUMCHUQUIRAGA AUREACHUQUIRAGA KINGIIHYDRAULIC EFFICIENCYHYDRAULIC SAFETYLYCIUM CHILENSEMULINUM SPINOSUMANATOMYCORRELATIONDIAMETERDROUGHT STRESSGREENHOUSE ECOSYSTEMSEEDLING ESTABLISHMENTSHRUBWATER AVAILABILITYXYLEMANARTHROPHYLLUMCHUQUIRAGALYCIUMJournal of Arid Environments |
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ANARTHROPHYLLUM RIGIDUM CHUQUIRAGA AUREA CHUQUIRAGA KINGII HYDRAULIC EFFICIENCY HYDRAULIC SAFETY LYCIUM CHILENSE MULINUM SPINOSUM ANATOMY CORRELATION DIAMETER DROUGHT STRESS GREENHOUSE ECOSYSTEM SEEDLING ESTABLISHMENT SHRUB WATER AVAILABILITY XYLEM ANARTHROPHYLLUM CHUQUIRAGA LYCIUM ANARTHROPHYLLUM RIGIDUM CHUQUIRAGA AUREA CHUQUIRAGA KINGII HYDRAULIC EFFICIENCY HYDRAULIC SAFETY LYCIUM CHILENSE MULINUM SPINOSUM ANATOMY CORRELATION DIAMETER DROUGHT STRESS GREENHOUSE ECOSYSTEM SEEDLING ESTABLISHMENT SHRUB WATER AVAILABILITY XYLEM ANARTHROPHYLLUM CHUQUIRAGA LYCIUM |
spellingShingle |
ANARTHROPHYLLUM RIGIDUM CHUQUIRAGA AUREA CHUQUIRAGA KINGII HYDRAULIC EFFICIENCY HYDRAULIC SAFETY LYCIUM CHILENSE MULINUM SPINOSUM ANATOMY CORRELATION DIAMETER DROUGHT STRESS GREENHOUSE ECOSYSTEM SEEDLING ESTABLISHMENT SHRUB WATER AVAILABILITY XYLEM ANARTHROPHYLLUM CHUQUIRAGA LYCIUM ANARTHROPHYLLUM RIGIDUM CHUQUIRAGA AUREA CHUQUIRAGA KINGII HYDRAULIC EFFICIENCY HYDRAULIC SAFETY LYCIUM CHILENSE MULINUM SPINOSUM ANATOMY CORRELATION DIAMETER DROUGHT STRESS GREENHOUSE ECOSYSTEM SEEDLING ESTABLISHMENT SHRUB WATER AVAILABILITY XYLEM ANARTHROPHYLLUM CHUQUIRAGA LYCIUM Durante, M. Maseda, Pablo Horacio Fernández, Roberto Javier Xylem efficiency vs. safety acclimation to drought of seedling root anatomy for six Patagonian shrub species |
description |
With the aim to seek evidences on the possible trade off between hydraulic efficiency and hydraulic safety, from both an evolutionary and an acclimation point of view, we compared root xylem anatomy and derived functional properties for seedlings of six Patagonian shrub species grown in a greenhouse under two levels of water availability [control and drought]. Root central cylinder area, vessel diameter [b] and double-wall thickness [t] were measured; from these data, the sum of vessel radii to the fourth power and wall strength [[t/b]2] were calculated as indicators of hydraulic efficiency and safety respectively. Across species, we observed only a weak negative correlation between hydraulic efficiency and hydraulic safety. Within species, Lycium chilense, the species with the most mesic leaves of the group, showed significant acclimation to drought for both functional attributes, lowering efficiency and increasing safety by developing a higher proportion of small and more resistant xylem vessels. |
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Texto |
topic_facet |
ANARTHROPHYLLUM RIGIDUM CHUQUIRAGA AUREA CHUQUIRAGA KINGII HYDRAULIC EFFICIENCY HYDRAULIC SAFETY LYCIUM CHILENSE MULINUM SPINOSUM ANATOMY CORRELATION DIAMETER DROUGHT STRESS GREENHOUSE ECOSYSTEM SEEDLING ESTABLISHMENT SHRUB WATER AVAILABILITY XYLEM ANARTHROPHYLLUM CHUQUIRAGA LYCIUM |
author |
Durante, M. Maseda, Pablo Horacio Fernández, Roberto Javier |
author_facet |
Durante, M. Maseda, Pablo Horacio Fernández, Roberto Javier |
author_sort |
Durante, M. |
title |
Xylem efficiency vs. safety acclimation to drought of seedling root anatomy for six Patagonian shrub species |
title_short |
Xylem efficiency vs. safety acclimation to drought of seedling root anatomy for six Patagonian shrub species |
title_full |
Xylem efficiency vs. safety acclimation to drought of seedling root anatomy for six Patagonian shrub species |
title_fullStr |
Xylem efficiency vs. safety acclimation to drought of seedling root anatomy for six Patagonian shrub species |
title_full_unstemmed |
Xylem efficiency vs. safety acclimation to drought of seedling root anatomy for six Patagonian shrub species |
title_sort |
xylem efficiency vs. safety acclimation to drought of seedling root anatomy for six patagonian shrub species |
url |
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46489 |
work_keys_str_mv |
AT durantem xylemefficiencyvssafetyacclimationtodroughtofseedlingrootanatomyforsixpatagonianshrubspecies AT masedapablohoracio xylemefficiencyvssafetyacclimationtodroughtofseedlingrootanatomyforsixpatagonianshrubspecies AT fernandezrobertojavier xylemefficiencyvssafetyacclimationtodroughtofseedlingrootanatomyforsixpatagonianshrubspecies |
_version_ |
1756046651843149825 |