Photosynthetic and Growth Responses of Arundo donax L. Plantlets Under Different Oxygen Deficiency Stresses and Reoxygenation
Promotion of nonfood species production to marginal, degraded lands abandoned by mainstream agriculture is affected by extremes of water availability (droughts and floods), which have increased in frequency and intensity and account for severe yield reduction. Arundo donax L., known as giant cane or...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-04-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fpls.2019.00408/full |
| _version_ | 1818135966196432896 |
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| author | Antonio Pompeiano Antonio Pompeiano Thais Huarancca Reyes Tommaso M. Moles Lorenzo Guglielminetti Andrea Scartazza |
| author_facet | Antonio Pompeiano Antonio Pompeiano Thais Huarancca Reyes Tommaso M. Moles Lorenzo Guglielminetti Andrea Scartazza |
| author_sort | Antonio Pompeiano |
| collection | DOAJ |
| description | Promotion of nonfood species production to marginal, degraded lands abandoned by mainstream agriculture is affected by extremes of water availability (droughts and floods), which have increased in frequency and intensity and account for severe yield reduction. Arundo donax L., known as giant cane or giant reed, spontaneously grows in different kinds of environments with limitation to low temperature and is thus widespread in temperate and hot areas around the world. Moreover, this perennial rhizomatous grass has been recognized as a leading candidate crop in the Mediterranean for lignocellulosic feedstock due to its high C3 photosynthetic capacity, positive energy balance and low agroecological management demand. In this study, the photosynthetic performance and growth response of A. donax to waterlogging and submergence stress following a time course as well as their respective re-oxygenation were analyzed under reproducible and controlled environment conditions. Results of growth response showed that biomass production was strongly conditioned by the availability of oxygen. In fact, only waterlogged plants showed similar growth capacity to those under control conditions, while plants under submergence resulted in a dramatic reduction of this trait. The simultaneous measurements of both gas exchanges and chlorophyll fluorescence highlighted an alteration of both stomatal and non-stomatal photosynthetic behaviors during a short/medium period of oxygen deprivation and re-oxygenation. Photosynthetic CO2 uptake was strictly related to a combination of stomatal and mesophyll diffusional constrains, depending on the severity of the treatment and exposure time. Conditions of waterlogging and hypoxia revealed a slight growth plasticity of the species in response to prolonged stress conditions, followed by a fast recovery upon reoxygenation. Moreover, the rapid restoration of physiological functions after O2 deprivation testifies to the environmental plasticity of this species, although prolonged O2 shortage proved detrimental to A. donax by hampering growth and photosynthetic CO2 uptake. |
| first_indexed | 2024-12-11T09:32:54Z |
| format | Article |
| id | doaj.art-4fe8937e16da48c68e54d9a24120cc10 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-11T09:32:54Z |
| publishDate | 2019-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-4fe8937e16da48c68e54d9a24120cc102022-12-22T01:12:58ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2019-04-011010.3389/fpls.2019.00408433258Photosynthetic and Growth Responses of Arundo donax L. Plantlets Under Different Oxygen Deficiency Stresses and ReoxygenationAntonio Pompeiano0Antonio Pompeiano1Thais Huarancca Reyes2Tommaso M. Moles3Lorenzo Guglielminetti4Andrea Scartazza5International Clinical Research Center, St. Anne’s University Hospital, Brno, CzechiaCentral European Institute of Technology, Brno University of Technology, Brno, CzechiaDepartment of Agriculture, Food and Environment, University of Pisa, Pisa, ItalyDepartment of Agriculture, Food and Environment, University of Pisa, Pisa, ItalyDepartment of Agriculture, Food and Environment, University of Pisa, Pisa, ItalyInstitute of Research on Terrestrial Ecosystems, National Research Council, Pisa, ItalyPromotion of nonfood species production to marginal, degraded lands abandoned by mainstream agriculture is affected by extremes of water availability (droughts and floods), which have increased in frequency and intensity and account for severe yield reduction. Arundo donax L., known as giant cane or giant reed, spontaneously grows in different kinds of environments with limitation to low temperature and is thus widespread in temperate and hot areas around the world. Moreover, this perennial rhizomatous grass has been recognized as a leading candidate crop in the Mediterranean for lignocellulosic feedstock due to its high C3 photosynthetic capacity, positive energy balance and low agroecological management demand. In this study, the photosynthetic performance and growth response of A. donax to waterlogging and submergence stress following a time course as well as their respective re-oxygenation were analyzed under reproducible and controlled environment conditions. Results of growth response showed that biomass production was strongly conditioned by the availability of oxygen. In fact, only waterlogged plants showed similar growth capacity to those under control conditions, while plants under submergence resulted in a dramatic reduction of this trait. The simultaneous measurements of both gas exchanges and chlorophyll fluorescence highlighted an alteration of both stomatal and non-stomatal photosynthetic behaviors during a short/medium period of oxygen deprivation and re-oxygenation. Photosynthetic CO2 uptake was strictly related to a combination of stomatal and mesophyll diffusional constrains, depending on the severity of the treatment and exposure time. Conditions of waterlogging and hypoxia revealed a slight growth plasticity of the species in response to prolonged stress conditions, followed by a fast recovery upon reoxygenation. Moreover, the rapid restoration of physiological functions after O2 deprivation testifies to the environmental plasticity of this species, although prolonged O2 shortage proved detrimental to A. donax by hampering growth and photosynthetic CO2 uptake.https://www.frontiersin.org/article/10.3389/fpls.2019.00408/fullanaerobiosischlorophyll fluorescencegiant reedleaf gas exchangestomatal conductancemesophyll conductance |
| spellingShingle | Antonio Pompeiano Antonio Pompeiano Thais Huarancca Reyes Tommaso M. Moles Lorenzo Guglielminetti Andrea Scartazza Photosynthetic and Growth Responses of Arundo donax L. Plantlets Under Different Oxygen Deficiency Stresses and Reoxygenation Frontiers in Plant Science anaerobiosis chlorophyll fluorescence giant reed leaf gas exchange stomatal conductance mesophyll conductance |
| title | Photosynthetic and Growth Responses of Arundo donax L. Plantlets Under Different Oxygen Deficiency Stresses and Reoxygenation |
| title_full | Photosynthetic and Growth Responses of Arundo donax L. Plantlets Under Different Oxygen Deficiency Stresses and Reoxygenation |
| title_fullStr | Photosynthetic and Growth Responses of Arundo donax L. Plantlets Under Different Oxygen Deficiency Stresses and Reoxygenation |
| title_full_unstemmed | Photosynthetic and Growth Responses of Arundo donax L. Plantlets Under Different Oxygen Deficiency Stresses and Reoxygenation |
| title_short | Photosynthetic and Growth Responses of Arundo donax L. Plantlets Under Different Oxygen Deficiency Stresses and Reoxygenation |
| title_sort | photosynthetic and growth responses of arundo donax l plantlets under different oxygen deficiency stresses and reoxygenation |
| topic | anaerobiosis chlorophyll fluorescence giant reed leaf gas exchange stomatal conductance mesophyll conductance |
| url | https://www.frontiersin.org/article/10.3389/fpls.2019.00408/full |
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