Changes in the cell walls on fruit skin of Beurré D´Anjou pears (Pyrus communis L.) associated with sunburn injury

Spera, Nazarena; Ousset, Julia; Civello, Pedro Marcos; Colavita, G.M.

doi:10.1016/j.scienta.2022.111524

Cited by 5 publications

(2 citation statements)

References 64 publications

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“…In the case of bacterial adhesion, surface characteristics like hydrophobicity and roughness substantially contribute to their adhesion rate [28,29]. Fruit cuticle characteristics depend on apple cultivars, as shown by Bohinc et al [14], but also, in the case of pears, on climatic conditions [30].…”

Section: Introductionmentioning

confidence: 98%

The Biophysical Properties of the Fruit Cuticles of Six Pear Cultivars during Postharvest Ripening

Bohinc,

Lasić,

Matijaković Mlinarić

et al. 2024

Agronomy

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Pears are abundant in bioactive compounds, which exert favorable effects on human health. The biophysical attributes of fruit cuticles are pivotal in determining fruit quality, storability, and susceptibility to mold growth. This study aimed to elucidate the biophysical properties of six pear cultivars, ‘Conference’, ‘Celina’, ‘Abate Fetel’, ‘Packham’s Triumph’, ‘Sweet Sensation’, and ‘Williams’. Two maturity stages, unripe and fully ripened, were investigated. Furthermore, the efficacy of trimethyl-chitosan-coated pear surfaces in preventing Penicillium expansum (P. expansum) growth was assessed. Basic maturity indices (CIE color, ethylene evolution, firmness, soluble solids), cuticle contact angle, roughness, and zeta potential were analyzed. Surface roughness was measured using an optical profilometer, hydrophobicity was measured via profilometry, and zeta potential was quantified using an electrokinetic analyzer. The ‘Celina’ cultivar exhibited the highest roughness, whereas ‘Williams’ had the lowest roughness. All the cultivars’ cuticles demonstrated hydrophilic characteristics, with contact angles ranging between 65° and 90°. For pH values exceeding 3.5, all pear surfaces exhibited a negative zeta potential. P. expansum growth was the slowest on the ‘Packham’s Triumph’ and ‘Conference’ cultivars. Treatment with trimethyl chitosan effectively inhibited P. expansum growth in the initial hours of incubation. In conclusion, diverse pear cultivars manifest distinct biophysical surface properties and varying susceptibility to P. expansum growth. The growth of P. expansum correlates positively with roughness, contact angle, and zeta potential. These differences can significantly impact shelf life potential and the overall postharvest quality of pears.

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Section: Introductionmentioning

confidence: 98%

The Biophysical Properties of the Fruit Cuticles of Six Pear Cultivars during Postharvest Ripening

Bohinc,

Lasić,

Matijaković Mlinarić

et al. 2024

Agronomy

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“…By increasing photosynthetically active radiation in canopies, reflective groundcovers can also increase pear fruit set, size or weight in some years and locations (Bertelsen, 2005; Einhorn et al, 2012; Hanrahan et al, 2011), but not others (Vangdal et al, 2007; Yamamoto & Miyamoto, 2005). As disadvantages, increased light could increase the risk of pear sunburn (Spera et al, 2023), and a previous pear orchard study reports that a reflective groundcover increased density of a secondary pest, spider mite ( Tetranychus spp) (Nottingham et al, 2022). Despite the potential benefits and research studies going back decades, reflective groundcovers are scarcely used in Washington pear orchards.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of reflective groundcovers for pest and fruit quality management in commercial pear orchards

Orpet

Beers

DuPont

et al. 2023

J Applied Entomology

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Reflective groundcovers can improve crop yield and quality and deter pests by increasing light penetration into plant canopies. In pear (Pyrus communis L.) orchards, this could increase profitability and reduce reliance on insecticides to manage pear psylla (Cacopsylla pyricola [Foerster]). Two types of reflective groundcovers, metallized polyethylene film (metallized film) and white geotextile fabric (reflective fabric), are known to increase pear yield and quality, and metallized film was recently reported to suppress pear psylla. Here, we tested reflective fabric for pear psylla suppression at a research orchard in 2019, then we partnered with five pear orchard managers to test metallized film and reflective fabric for pear psylla suppression at five conventional commercial orchards in 2020 and one organic commercial orchard in 2021. There was evidence of pear psylla suppression by both metallized film and reflective fabric, but effects varied among reflective materials, pear psylla life stages, season and year of study. Reflective groundcovers did not affect fruit size, weight, sunburn or pest mite abundance, and they were compatible with pear psylla biocontrol. Low perceived benefit relative to cost was a barrier to continued trialling and adoption. Whereas orchardists in our study used reflective groundcovers in addition to normal pesticide regimes, previous research studies suggest that reflective groundcovers can profitably replace some insecticides. Future studies are needed to test the outcomes of replacing pesticides with reflective groundcovers in commercial orchards and understand under what circumstances they improve pear quality and yield.

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Alpha-expansins: more than three decades of wall creep and loosening in fruits

Méndez-Yáñez,

Carrasco-Orellana,

Ramos

et al. 2024

Plant Mol Biol

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Changes in the cell walls on fruit skin of Beurré D´Anjou pears (Pyrus communis L.) associated with sunburn injury

Cited by 5 publications

References 64 publications

The Biophysical Properties of the Fruit Cuticles of Six Pear Cultivars during Postharvest Ripening

The Biophysical Properties of the Fruit Cuticles of Six Pear Cultivars during Postharvest Ripening

Evaluation of reflective groundcovers for pest and fruit quality management in commercial pear orchards

Alpha-expansins: more than three decades of wall creep and loosening in fruits

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