Apple-based coatings incorporated with wild apple isolated yeast to reduce Penicillium expansum postharvest decay of apples

2022 ◽  
Vol 185 ◽  
pp. 111805
Author(s):  
Laura Settier-Ramírez ◽  
Gracia López-Carballo ◽  
Pilar Hernández-Muñoz ◽  
Angélique Fontana-Tachon ◽  
Caroline Strub ◽  
...  
Keyword(s):  
Penicillium Expansum ◽  
Postharvest Decay

scholarly journals Identification of wild apple germplasm (Malus spp.) accessions with resistance to the postharvest decay pathogens Penicillium expansum and Colletotrichum acutatum

2011 ◽  
Vol 130 (4) ◽  
pp. 481-486 ◽  
Author(s):  
Wayne M. Jurick ◽  
Wojciech J. Janisiewicz ◽  
Robert A. Saftner ◽  
Ivana Vico ◽  
Verneta L. Gaskins ◽  
...  
Keyword(s):  
Penicillium Expansum ◽  
Colletotrichum Acutatum ◽  
Postharvest Decay

Effect of the Yeast Rhodosporidium paludigenum on Postharvest Decay and Patulin Accumulation in Apples and Pears

2015 ◽  
Vol 78 (1) ◽  
pp. 157-163 ◽  
Author(s):  
RUIYU ZHU ◽  
TING YU ◽  
SHUANGHUAN GUO ◽  
HAO HU ◽  
XIAODONG ZHENG ◽  
...  
Keyword(s):  
Physical Adsorption ◽  
Penicillium Expansum ◽  
Biological Degradation ◽  
Blue Mold ◽  
High Concentration ◽  
Marine Yeast ◽  
Postharvest Decay ◽  
Biological Treatments ◽  
Promising Source

The effect of a strain of marine yeast Rhodosporidium paludigenum on postharvest blue mold and patulin accumulation in apples and pears stored at 23°C was evaluated. The occurrence and severity of apple and pear decay caused by Penicillium expansum were significantly inhibited by R. paludigenum. However, the application of the yeast at a high concentration (108 cells per ml) enhanced patulin accumulation after 7 days of storage; the amount of patulin increased 24.2 times and 12.6 times compared to the controls in infected apples and pears, respectively. However, R. paludigenum reduced the patulin concentration in the growth medium by both biological degradation and physical adsorption. Optimal in vitro patulin reduction was observed at 30°C and at pH 6.0. R. paludigenum incubated at 28°C was tolerant to patulin at concentrations up to 100 mg/liter. In conclusion, R. paludigenum was able to control postharvest decay in apples and pears and to remove patulin in vitro effectively. However, because the yeast induced patulin accumulation in fruit, the assessment of mycotoxin content after biological treatments in postharvest decay control is important. R. paludigenum may also be a promising source of gene(s) and enzyme(s) for patulin degradation and may be a tool to decrease patulin contamination in commercial fruit-derived products.

scholarly journals Fumigation of Fruit with Short-Chain Organic Acids to Reduce the Potential of Postharvest Decay

Plant Disease ◽  
1998 ◽  
Vol 82 (6) ◽  
pp. 689-693 ◽  
Author(s):  
P. L. Sholberg
Keyword(s):  
Formic Acid ◽  
Fungal Pathogens ◽  
Citrus Fruit ◽  
Penicillium Expansum ◽  
Monilinia Fructicola ◽  
Rhizopus Stolonifer ◽  
Pome Fruit ◽  
Fruit Peel ◽  
Postharvest Decay ◽  
Fruit Decay

Vapors of acetic (1.9 or 2.5 μl/liter), formic (1.2 μl/liter), and propionic (2.5 μl/liter) acids were tested for postharvest decay control on 8 cherry, 14 pome, and 3 citrus fruit cultivars. Surfacesterilized fruit were inoculated with known fungal pathogens by drying 20-μl drops of spore suspension on marked locations on each fruit, placing at 10°C to equilibrate for approximately 24 h, and fumigating by evaporating the above acids in 12.7-liter airtight fumigation chambers for 30 min. Immediately after fumigation, the fruit were removed, aerated, aseptically injured, and placed at 20°C until decay occurred. All three fumigants controlled Monilinia fructicola, Penicillium expansum, and Rhizopus stolonifer on cherry. Formic acid increased fruit pitting on six of eight cultivars and was the only organic acid to increase blackening of cherry stems when compared to the control. Decay of pome fruit caused by P. expansum was reduced from 98% to 16, 4, or 8% by acetic, formic, and propionic acids, respectively, without injury to the fruit. Decay of citrus fruit by P. digitatum was reduced from 86 to 11% by all three acids, although browning of the fruit peel was observed on grapefruit and oranges fumigated with formic acid.

In-Season Monitoring of Postharvest Rot Pathogens on European Pears (Pyrus communis) in Southern Oregon and Subsequent Management Strategies

2020 ◽  
pp. 1-11
Author(s):  
Achala N. KC ◽  
Ann L. Rasmussen
Keyword(s):  
Fruit Development ◽  
Fungal Pathogens ◽  
Management Strategies ◽  
Penicillium Expansum ◽  
Separate Experiment ◽  
Full Bloom ◽  
Postharvest Decay ◽  
Commercial Harvest ◽  
Postharvest Application ◽  
Postharvest Rot

Postharvest decay in pears is a disease complex caused by several fungal pathogens. To understand the presence of these pathogens on flower and fruit tissues at early stages of fruit development, we collected samples from two commercial pear orchards in southern Oregon at five stages of fruit development: cluster bud, full bloom, petal fall, fruitlets, and field bins during commercial harvest. We recovered four common postharvest decay pathogens, Alternaria spp., Botrytis cinerea, Cladosporium herbarum, and Penicillium expansum, which varied in frequency across these stages, suggesting that pathogens may initially infect flowers and fruitlets well before conventional preharvest fungicide sprays. In a separate experiment, we applied four fungicides early in the growing season and/or shortly before harvest to determine when treatment was most effective in reducing the recovery rate of these pathogens and reducing storage rot. The recovery of Alternaria spp., B. cinerea, and P. expansum from flowers and fruitlets was reduced by 33, 47, and 33%, respectively, with bloom-time fungicide applications compared with nontreated control treatments. In addition, the fungicide program that included bloom-time application, preharvest application, and postharvest application resulted in significantly lower storage rot incidence compared with preharvest and postharvest application only. Syllit (dodine) reduced the storage rot incidence by 71%, Inspire Super (difenoconazole + cyprodinil) by 52%, Nevado (iprodione) by 36%, and Merivon (fluxapyroxad + pyraclostrobin) by 33% compared with nontreated control treatments.

scholarly journals First Report of Penicillium expansum Causing Postharvest Decay on Stored Kiwifruit (Actinidia arguta) in China

Plant Disease ◽  
2015 ◽  
Vol 99 (7) ◽  
pp. 1037-1037 ◽  
Author(s):  
C. W. Wang ◽  
J. Ai ◽  
H. Y. Lv ◽  
H. Y. Qin ◽  
Y. M. Yang ◽  
...  
Keyword(s):  
Penicillium Expansum ◽  
First Report ◽  
Actinidia Arguta ◽  
Postharvest Decay

scholarly journals Improved Control of Postharvest Decay of Pears by the Combination of Candida sake (CPA-1) and Ammonium Molybdate

2002 ◽  
Vol 92 (3) ◽  
pp. 281-287 ◽  
Author(s):  
Carla Nunes ◽  
Josep Usall ◽  
Neus Teixidó ◽  
Maribel Abadias ◽  
Immaculada Viñas
Keyword(s):  
Botrytis Cinerea ◽  
Gray Mold ◽  
Ammonium Molybdate ◽  
Penicillium Expansum ◽  
Low Oxygen ◽  
Blue Mold ◽  
Postharvest Decay ◽  
Oxygen Conditions ◽  
Candida Sake

The potential enhancement of Candida sake (CPA-1) by ammonium molybdate to control blue and gray mold caused by Penicillium expansum and Botrytis cinerea, respectively, on Blanquilla pears was investigated. In laboratory trials, improved control of blue and gray molds was obtained with the application of ammonium molybdate (1, 5, 10, and 15 mM) alone or in combination with C. sake at 2 × 106 or 2 × 107 CFU ml-1 on Blanquilla pears stored at 20°C. In semicommercial trials at 1°C for 5 months, the efficacy of C. sake at 2 × 106 CFU ml-1 on reducing P. expansum and B. cinerea decay was enhanced more than 88% with the addition of ammonium molybdate 5 mM in the 1999-2000 season. In two seasons, the performance C. sake at 2 × 106 CFU ml-1 plus ammonium molybdate was similar to or greater than that of C. sake at 2 × 107 CFU ml-1. Similar control of blue mold was obtained on pears stored under low oxygen conditions. The preharvest application of ammonium molybdate did not reduce postharvest blue mold decay. The population of C. sake on pear wounds significantly decreased in the presence of ammonium molybdate 1 and 5 mM at 20 and 1°C.

Effect of hot acetic acid solutions on postharvest decay caused by Penicillium expansum on Red Delicious apples

2010 ◽  
Vol 126 (4) ◽  
pp. 421-425 ◽  
Author(s):  
Mohsen Radi ◽  
Hassan Afshari Jouybari ◽  
Gholamreza Mesbahi ◽  
Asgar Farahnaky ◽  
Sedigheh Amiri
Keyword(s):  
Acetic Acid ◽  
Penicillium Expansum ◽  
Acid Solutions ◽  
Postharvest Decay

scholarly journals Purification and Biochemical Characterization of Polygalacturonase Produced by Penicillium expansum During Postharvest Decay of ‘Anjou’ Pear

2010 ◽  
Vol 100 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Wayne M. Jurick ◽  
Ivana Vico ◽  
Verneta L. Gaskins ◽  
Wesley M. Garrett ◽  
Bruce D. Whitaker ◽  
...  
Keyword(s):  
Biochemical Characterization ◽  
Gel Filtration ◽  
Apple Fruit ◽  
Exchange Chromatography ◽  
Penicillium Expansum ◽  
Pear Fruit ◽  
Postharvest Decay ◽  
Ph Range ◽  
Thin Layer Chromatographic Analysis

A polygalacturonase (PG) was extracted and purified from decayed tissue of ‘Anjou’ pear fruit inoculated with Penicillium expansum. Ammonium sulfate precipitation, gel filtration, and cation exchange chromatography were used to purify the enzyme. Both chromatographic methods revealed a single peak corresponding to PG activity. PG enzyme activity from healthy and wounded pear tissue was undetectable, which supports the claim that the purified PG is of fungal origin. The purified enzyme had a molecular mass of 41 kDa and a pI of 7.8. Activity of the PG was not associated with a glycosylated protein. The enzyme was active over a broad pH range from 3 to 6, with optimal activity at 4.5 in sodium citrate and sodium acetate buffers. The optimal temperature for activity was 37°C but the enzyme was also active at 0, 5, 10, 20, and 50°C. Thin-layer chromatographic analysis of PG hydrolysis products showed that the enzyme exhibits endo- and exo-activity. The purified enzyme macerated tissue in vitro causing ≈30% reduction in mass of pear plugs compared with ≈17% reduction for apple. Additionally, it produced 1.5-fold more soluble polyuronides on pear than apple tissue. This work shows for the first time the production of a PG by P. expansum during postharvest decay of pear fruit is different from the previously described PG produced in decayed apple fruit by the same pathogen.

Sign in / Sign up

Export Citation Format

Share Document