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Article ; Online: Critical water contents at leaf, stem and root level leading to irreversible drought‐induced damage in two woody and one herbaceous species

Trifilò, Patrizia / Abate, Elisa / Petruzzellis, Francesco / Azzarà, Maria / Nardini, Andrea

Plant, Cell & Environment. 2023 Jan., v. 46, no. 1 p.119-132

2023

Abstract: Plant water content is a simple and promising parameter for monitoring drought‐driven plant mortality risk. However, critical water content thresholds leading to cell damage and plant failure are still unknown. Moreover, it is unclear whether whole‐plant ...

Abstract	Plant water content is a simple and promising parameter for monitoring drought‐driven plant mortality risk. However, critical water content thresholds leading to cell damage and plant failure are still unknown. Moreover, it is unclear whether whole‐plant or a specific organ water content is the most reliable indicator of mortality risk. We assessed differences in dehydration thresholds in leaf, stem and root samples, hampering the organ‐specific rehydration capacity and increasing the mortality risk. We also tested eventual differences between a fast experimental dehydration of uprooted plants, compared to long‐term water stress induced by withholding irrigation in potted plants. We investigated three species with different growth forms and leaf habits i.e., Helianthus annuus (herbaceous), Populus nigra (deciduous tree) and Quercus ilex (evergreen tree). Results obtained by the two dehydration treatments largely overlapped, thus validating bench dehydration as a fast but reliable method to assess species‐specific critical water content thresholds. Regardless of the organ considered, a relative water content value of 60% induced significant cell membrane damage and loss of rehydration capacity, thus leading to irreversible plant failure and death.
Keywords	Helianthus annuus ; Populus nigra ; Quercus ilex ; cell membranes ; death ; environment ; herbaceous plants ; irrigation ; leaves ; mortality ; rehydration ; risk ; trees ; water content ; water stress
Language	English
Dates of publication	2023-01
Size	p. 119-132.
Publishing place	John Wiley & Sons, Ltd
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	391893-2
ISSN	1365-3040 ; 0140-7791
ISSN (online)	1365-3040
ISSN	0140-7791
DOI	10.1111/pce.14469
Database	NAL-Catalogue (AGRICOLA)

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Article: When Water Availability Is Low, Two Mediterranean Salvia Species Rely on Root Hydraulics

Abate, Elisa / Azzarà, Maria / Trifilò, Patrizia

Plants. 2021 Sept. 13, v. 10, no. 9

2021

Abstract: Increase in severity and frequency of drought events is altering plant community composition, exposing biomes to a higher risk of biodiversity losses. This is exacerbated in the most fragile areas as Mediterranean biome. Thus, identifying plant traits ... ...

Abstract	Increase in severity and frequency of drought events is altering plant community composition, exposing biomes to a higher risk of biodiversity losses. This is exacerbated in the most fragile areas as Mediterranean biome. Thus, identifying plant traits for forecasting species with a high risk of drought-driven mortality is particularly urgent. In the present study, we investigated the drought resistance strategy of two Mediterranean native species: Salvia ceratophylloides Ard. (Sc) and Salvia officinalis L. (So) by considering the impact of drought-driven water content decline on plant hydraulics. Well-watered samples of Sc displayed higher leaf and stemsaturated water content and lower shoot biomass than So samples, but similar root biomass. In response to drought, Sc showed a conservative water use strategy, as the prompt stomatal closure and leaves shedding suggested. A drought-tolerant mechanism was confirmed in So samples. Nevertheless, Sc and So showed similar drought-driven plant hydraulic conductance (Kₚₗₐₙₜ) recover ability. Root hydraulic traits played a key role to reach this goal. Relative water content as well as loss of cell rehydration capability and membrane damages, especially of stem and root, were good proxies of drought-driven Kₚₗₐₙₜ decline.
Keywords	Salvia officinalis ; biomass ; botanical composition ; decline ; drought ; drought tolerance ; ecosystems ; fluid mechanics ; hydraulic conductivity ; indigenous species ; leaves ; mortality ; rehydration ; risk ; stomatal movement ; water content
Language	English
Dates of publication	2021-0913
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2704341-1
ISSN	2223-7747
ISSN	2223-7747
DOI	10.3390/plants10091888
Database	NAL-Catalogue (AGRICOLA)

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Article: Too dry to survive: Leaf hydraulic failure in two Salvia species can be predicted on the basis of water content

Abate, Elisa / Nardini, Andrea / Petruzzellis, Francesco / Trifilò, Patrizia

Plant physiology and biochemistry. 2021 Sept., v. 166

2021

Abstract: Global warming is exposing plants to increased risks of drought-driven mortality. Recent advances suggest that hydraulic failure is a key process leading to plant death, and the identification of simple and reliable proxies of species-specific risk of ... ...

Abstract	Global warming is exposing plants to increased risks of drought-driven mortality. Recent advances suggest that hydraulic failure is a key process leading to plant death, and the identification of simple and reliable proxies of species-specific risk of irreversible hydraulic damage is urgently required.We assessed the predictive power of leaf water content and shrinkage for monitoring leaf hydraulic failure in two Mediterranean native species, Salvia ceratophylloides (Sc) and S. officinalis (So).The study species showed significant differences in relative water content (RWC) thresholds inducing loss of rehydration capacity, as well as leaf hydraulic conductance (KL) impairment. Sc turned out to be more resistant to drought than So. However, Sc and So showed different leaf saturated water content values, so that different RWC values actually corresponded to similar absolute leaf water content. Our findings suggest that absolute leaf water content and leaf water potential, but not RWC, are reliable parameters for predicting the risk of leaf hydraulic impairment of two Salvia species, and their potential risk of irreversible damage under severe drought. Moreover, the lack of any KL decline until the turgor loss point in Sc, coupled to consistent leaf shrinkage, rejects the hypothesis to use leaf shrinkage as a proxy to predict KL vulnerability, at least in species with high leaf capacitance. Robust linear correlations between KL decline and electrolyte leakage measurements suggested a role of membrane damage in driving leaf hydraulic collapse.
Keywords	biochemistry ; capacitance ; death ; decline ; drought ; electrolyte leakage ; hydraulic conductivity ; indigenous species ; leaf water potential ; leaves ; mortality ; rehydration ; risk ; shrinkage ; turgor ; water content
Language	English
Dates of publication	2021-09
Size	p. 215-224.
Publishing place	Elsevier Masson SAS
Document type	Article
ZDB-ID	742978-2
ISSN	1873-2690 ; 0981-9428
ISSN (online)	1873-2690
ISSN	0981-9428
DOI	10.1016/j.plaphy.2021.05.046
Database	NAL-Catalogue (AGRICOLA)

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Article: When Water Availability Is Low, Two Mediterranean

Abate, Elisa / Azzarà, Maria / Trifilò, Patrizia

Plants (Basel, Switzerland)

2021 Volume 10, Issue 9

Abstract	Increase in severity and frequency of drought events is altering plant community composition, exposing biomes to a higher risk of biodiversity losses. This is exacerbated in the most fragile areas as Mediterranean biome. Thus, identifying plant traits for forecasting species with a high risk of drought-driven mortality is particularly urgent. In the present study, we investigated the drought resistance strategy of two Mediterranean native species:
Language	English
Publishing date	2021-09-13
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2704341-1
ISSN	2223-7747
ISSN	2223-7747
DOI	10.3390/plants10091888
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Critical water contents at leaf, stem and root level leading to irreversible drought-induced damage in two woody and one herbaceous species.

Trifilò, Patrizia / Abate, Elisa / Petruzzellis, Francesco / Azzarà, Maria / Nardini, Andrea

Plant, cell & environment

2022 Volume 46, Issue 1, Page(s) 119–132

Abstract: Plant water content is a simple and promising parameter for monitoring drought-driven plant mortality risk. However, critical water content thresholds leading to cell damage and plant failure are still unknown. Moreover, it is unclear whether whole-plant ...

Abstract	Plant water content is a simple and promising parameter for monitoring drought-driven plant mortality risk. However, critical water content thresholds leading to cell damage and plant failure are still unknown. Moreover, it is unclear whether whole-plant or a specific organ water content is the most reliable indicator of mortality risk. We assessed differences in dehydration thresholds in leaf, stem and root samples, hampering the organ-specific rehydration capacity and increasing the mortality risk. We also tested eventual differences between a fast experimental dehydration of uprooted plants, compared to long-term water stress induced by withholding irrigation in potted plants. We investigated three species with different growth forms and leaf habits i.e., Helianthus annuus (herbaceous), Populus nigra (deciduous tree) and Quercus ilex (evergreen tree). Results obtained by the two dehydration treatments largely overlapped, thus validating bench dehydration as a fast but reliable method to assess species-specific critical water content thresholds. Regardless of the organ considered, a relative water content value of 60% induced significant cell membrane damage and loss of rehydration capacity, thus leading to irreversible plant failure and death.
MeSH term(s)	Plant Leaves
Language	English
Publishing date	2022-11-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	391893-2
ISSN	1365-3040 ; 0140-7791
ISSN (online)	1365-3040
ISSN	0140-7791
DOI	10.1111/pce.14469
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Too dry to survive: Leaf hydraulic failure in two Salvia species can be predicted on the basis of water content.

Abate, Elisa / Nardini, Andrea / Petruzzellis, Francesco / Trifilò, Patrizia

Plant physiology and biochemistry : PPB

2021 Volume 166, Page(s) 215–224

Abstract	Global warming is exposing plants to increased risks of drought-driven mortality. Recent advances suggest that hydraulic failure is a key process leading to plant death, and the identification of simple and reliable proxies of species-specific risk of irreversible hydraulic damage is urgently required. We assessed the predictive power of leaf water content and shrinkage for monitoring leaf hydraulic failure in two Mediterranean native species, Salvia ceratophylloides (Sc) and S. officinalis (So). The study species showed significant differences in relative water content (RWC) thresholds inducing loss of rehydration capacity, as well as leaf hydraulic conductance (K
MeSH term(s)	Droughts ; Plant Leaves ; Salvia ; Species Specificity ; Water
Chemical Substances	Water (059QF0KO0R)
Language	English
Publishing date	2021-06-02
Publishing country	France
Document type	Journal Article
ZDB-ID	742978-2
ISSN	1873-2690 ; 0981-9428
ISSN (online)	1873-2690
ISSN	0981-9428
DOI	10.1016/j.plaphy.2021.05.046
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: The extra-vascular water pathway regulates dynamic leaf hydraulic decline and recovery in Populus nigra.

Trifilò, Patrizia / Petruzzellis, Francesco / Abate, Elisa / Nardini, Andrea

Physiologia plantarum

2020 Volume 172, Issue 1, Page(s) 29–40

Abstract: Leaf hydraulic conductance ( ... ...

Abstract	Leaf hydraulic conductance (K
MeSH term(s)	Droughts ; Plant Leaves ; Populus ; Water
Chemical Substances	Water (059QF0KO0R)
Language	English
Publishing date	2020-11-16
Publishing country	Denmark
Document type	Journal Article
ZDB-ID	2020837-6
ISSN	1399-3054 ; 0031-9317
ISSN (online)	1399-3054
ISSN	0031-9317
DOI	10.1111/ppl.13266
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Delaying drought-driven leaf cell damage may be the key trait of invasive trees ensuring their success in the Mediterranean basin.

Azzarà, Maria / Abate, Elisa / Chiofalo, Maria T / Crisafulli, Alessandro / Trifilò, Patrizia

Tree physiology

2022 Volume 43, Issue 3, Page(s) 430–440

Abstract: Invasive alien species (IAS) threaten the biodiversity richness of the Mediterranean basin, a drought-prone region. However, our knowledge on the adaptive strategies of IAS for facing Mediterranean drought summers is still incomplete. The aim of the ... ...

Abstract	Invasive alien species (IAS) threaten the biodiversity richness of the Mediterranean basin, a drought-prone region. However, our knowledge on the adaptive strategies of IAS for facing Mediterranean drought summers is still incomplete. The aim of the present study is to compare the water relations and the critical relative water content (RWC) values leading to loss of cell rehydration capacity of two Mediterranean basin IAS (i.e., Ailanthus altissima (Mill.) Swingle and Robinia pseudoacacia L.) versus two co-occurring native species (i.e., Fraxinus ornus L. and Quercus pubescens Willd.). Study IAS showed higher values of water potential at turgor loss point and osmotic potential at full turgor, lower values of modulus of elasticity and leaf mass area but higher photosynthesis rate, even during the summer, with respect to the Mediterranean native species. These findings supported the hypothesis that IAS are characterized by a resource acquisitive strategy coupled with a safety-efficiency trade-off, compared with Mediterranean native species. However, similar leaf RWC thresholds leading to loss of cell rehydration capacity were recorded in the two groups of species. Moreover, IAS showed higher saturated water content and capacitance values compared with the co-occurring species. Overall, our results suggest that the success of Mediterranean IAS is driven by their ability to delay dehydration damage of mesophyll cells during Mediterranean summer drought, thereby supporting their distinctive high carbon assimilation rate.
MeSH term(s)	Trees ; Droughts ; Quercus ; Water ; Plant Leaves ; Introduced Species
Chemical Substances	Water (059QF0KO0R)
Language	English
Publishing date	2022-11-21
Publishing country	Canada
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	743341-4
ISSN	1758-4469 ; 0829-318X
ISSN (online)	1758-4469
ISSN	0829-318X
DOI	10.1093/treephys/tpac134
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Article: Stem Photosynthesis Affects Hydraulic Resilience in the Deciduous Populusalba but Not in the Evergreen Laurus nobilis

Trifilò, Patrizia / Natale, Sara / Gargiulo, Sara / Abate, Elisa / Casolo, Valentino / Nardini, Andrea

Water. 2021 Oct. 16, v. 13, no. 20

2021

Abstract: Stem photosynthesis has been suggested to play relevant roles to cope with different biotic and abiotic stress factors, including drought. In the present study, we performed measurements of stem hydraulic conductance and non-structural carbohydrate ... ...

Abstract	Stem photosynthesis has been suggested to play relevant roles to cope with different biotic and abiotic stress factors, including drought. In the present study, we performed measurements of stem hydraulic conductance and non-structural carbohydrate content in the evergreen Laurus nobilis L. and the deciduous Populusalba L., subjected to inhibition of stem photosynthesis and successive exposure to a drought-recovery cycle in order to check if stem photosynthesis may be involved in allowing hydraulic recovery after drought stress relief. Stem shading affected the growth of L. nobilis but not of P. alba saplings. By contrast, inhibition of stem photosynthesis was coupled to inhibition of hydraulic recovery following embolism build-up under drought in P. alba but not in L. nobilis. The two study species showed a different content and behavior of nonstructural carbohydrates (NSCs). The differences in NSCs’ trend and embolism reversal ability led to a significant relationship between starch content and the corresponding hydraulic conductance values in L. nobilis but not in P. alba. Our findings suggest that stem photosynthesis plays a key role in the maintenance of hydraulic functioning during drought especially in the deciduous species. This, in turn, may increase their vulnerability under current global climate change scenarios.
Keywords	Laurus nobilis ; carbohydrate content ; climate change ; drought ; embolism ; hydraulic conductivity ; photosynthesis ; starch ; water ; water stress
Language	English
Dates of publication	2021-1016
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2521238-2
ISSN	2073-4441
ISSN	2073-4441
DOI	10.3390/w13202911
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Article ; Online: Directed formation of lipid membrane microdomains as high affinity sites for His-tagged proteins.

Hayden, Carl C / Hwang, Jane S / Abate, Elisa A / Kent, Michael S / Sasaki, Darryl Y

Journal of the American Chemical Society

2009 Volume 131, Issue 25, Page(s) 8728–8729

Abstract: Lipid membranes composed of an iminodiacetic acid functionalized lipid, DSIDA, in a POPC matrix exhibited switchable properties via Cu(2+) recognition to rapidly assemble microdomains that act as high affinity sites for His-tagged proteins. The ... ...

Abstract	Lipid membranes composed of an iminodiacetic acid functionalized lipid, DSIDA, in a POPC matrix exhibited switchable properties via Cu(2+) recognition to rapidly assemble microdomains that act as high affinity sites for His-tagged proteins. The microdomains demonstrated an order of magnitude enhanced affinity for the proteins compared to homogeneously functionalized POPC membranes with Ni(2+)-NTA DOGS or Cu(2+)-DOIDA, while a rapid release and restoration of the original membrane was accomplished with micromolar concentrations of EDTA.
MeSH term(s)	Animals ; Carrier Proteins/chemistry ; Carrier Proteins/metabolism ; Copper/metabolism ; Histidine/chemistry ; Imino Acids/chemistry ; Imino Acids/metabolism ; Lipid Metabolism ; Lipids/chemistry ; Maltose-Binding Proteins ; Membrane Microdomains/chemistry ; Membrane Microdomains/metabolism ; Membranes, Artificial ; Phosphatidylcholines/chemistry ; Proteins/chemistry ; Proteins/metabolism
Chemical Substances	Carrier Proteins ; Imino Acids ; Lipids ; Maltose-Binding Proteins ; Membranes, Artificial ; Phosphatidylcholines ; Proteins ; Histidine (4QD397987E) ; Copper (789U1901C5) ; 1-palmitoyl-2-oleoylphosphatidylcholine (TE895536Y5) ; iminodiacetic acid (XQM2L81M8Z)
Language	English
Publishing date	2009-07-01
Publishing country	United States
Document type	Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
ZDB-ID	3155-0
ISSN	1520-5126 ; 0002-7863
ISSN (online)	1520-5126
ISSN	0002-7863
DOI	10.1021/ja901157c
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