Evidence map›Paper›PMID 35807647›Full record

ArticlePlants (Basel, Switzerland)2022

Physiological and Structural Responses to Prolonged Water Deficit in Young Trees of Two Olive Cultivars.

Roberto Massenti, Alessio Scalisi, Francesco Paolo Marra, Tiziano Caruso, Giulia Marino, Riccardo Lo Bianco

Abstract read
In one paragraph

Article in Plants (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Roberto MassentiDepartment of Agricultural, Food and Forest Sciences (SAAF), University of Palermo, 90128 Palermo, Italy.
Alessio ScalisiDepartment of Agricultural, Food and Forest Sciences (SAAF), University of Palermo, 90128 Palermo, Italy.ORCID 0000-0001-6224-0411
Francesco Paolo MarraDepartment of Agricultural, Food and Forest Sciences (SAAF), University of Palermo, 90128 Palermo, Italy.ORCID 0000-0003-1490-0619
Tiziano CarusoDepartment of Agricultural, Food and Forest Sciences (SAAF), University of Palermo, 90128 Palermo, Italy.ORCID 0000-0002-6909-7723
Giulia MarinoDepartment of Agricultural, Food and Forest Sciences (SAAF), University of Palermo, 90128 Palermo, Italy.
Riccardo Lo BiancoDepartment of Agricultural, Food and Forest Sciences (SAAF), University of Palermo, 90128 Palermo, Italy.ORCID 0000-0003-2568-2880

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to characterize the physiological and structural responses of potted one-year-old olive trees belonging to two olive cultivars—‘Nocellara del Belice’ and ‘Cerasuola’—exposed to prolonged drought under greenhouse conditions. Two irrigation treatments based on evapotranspiration (ET) were imposed for 69 days, i.e., well-watered (WW, 100% ET) and drought-stressed (DS, 10−30% ET). Leaf stomatal conductance (gs), stem water potential (Ψstem), transpiration (E), photosynthetic capacity (Amax), water use efficiency (WUE), stem (Kstem) and root (Kroot) hydraulic conductance, trunk diameter variations (TDV), and leaf patch attenuated pressure fluctuations (pp, a proxy of the inverse of leaf turgor pressure) were measured in WW and DS trees at different stages of the experiment. Leaf gs did not significantly differ between cultivars under DS, whereas differences in Ψstem only became significant at the end of prolonged drought, when ‘Nocellara del Belice’ experienced Ψstem < −4 MPa. ‘Cerasuola’ trees expressed the best WUE under drought, although they were more susceptible to photoinhibition under optimal plant water status. Both cultivars tended to increase their Kstem at the end of the drought period. A marked reduction in Kroot occurred in ‘Cerasuola’ plants after prolonged drought; however, a similar mechanism was not observed in ‘Nocellara del Belice’. The ratio between Kstem and Kroot exponentially increased towards the end of the prolonged drought period in both cultivars, but more markedly in ‘Cerasuola’. TDV and pp trends suggested that ‘Cerasuola’ plants keep better plant water status under severe drought compared to ‘Nocellara del Belice’ by maintaining high leaf turgor and reduced trunk diameter fluctuations. These responses may be related to reduced cell wall elasticity and xylem vessel size and/or wall thickness—drought avoidance mechanisms. The Kstem/Kroot ratio can serve as an indicator of drought stress avoidance mechanisms to compare genotype-specific responses to drought stress.

Indexed as

conductancedroughtleaf turgorOlea europaea L.photosynthesistranspirationtrunk diameterwater stress

Identifiers

PMID35807647
PMCPMC9269245

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.