Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Changes in ATP, ADP and pyridine nucleotide levels related to the incidence of physiological disorders in 'Conference' pears and 'Jonagold' apples during controlled atmosphere storage
Autore:
Saquet, AA; Streif, J; Bangerth, F;
Indirizzi:
Univ Hohenheim, Inst Obstbau Bavendorf, D-88213 Ravensburg, Germany Univ Hohenheim Ravensburg Germany D-88213 f, D-88213 Ravensburg, Germany Univ Hohenheim, Inst Obst Gemuse & Weinbau, D-70593 Stuttgart, Germany Univ Hohenheim Stuttgart Germany D-70593 bau, D-70593 Stuttgart, Germany
Titolo Testata:
JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY
fascicolo: 2, volume: 75, anno: 2000,
pagine: 243 - 249
SICI:
1462-0316(200003)75:2<243:CIAAAP>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLANT-TISSUE DISORDERS; ENERGY-METABOLISM; LIPID-PEROXIDATION; AVOCADO FRUIT; OXYGEN; STRESS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Streif, J Univ Hohenheim, Inst Obstbau Bavendorf, D-88213 Ravensburg, Germany Univ Hohenheim Ravensburg Germany D-88213 Ravensburg, Germany
Citazione:
A.A. Saquet et al., "Changes in ATP, ADP and pyridine nucleotide levels related to the incidence of physiological disorders in 'Conference' pears and 'Jonagold' apples during controlled atmosphere storage", J HORT SCI, 75(2), 2000, pp. 243-249

Abstract

The effects of four controlled atmosphere (CA) storage conditions on ATP and ADP levels, and the concentrations of NAD(H) and NADP(H) were investigated in relation to the incidence of physiological disorders of 'Conference' pears and 'Jonagold' apples during six months at 0 degrees C (+/-0.5 degrees C). ATP concentrations in apple and pear fruits stored in CA were lower than those in air-stored fruits but their reduction was lowest for 'Conference' pears stored in 1.5% CO2 + 1.5% O-2 'Jonagold' apples showed a sharp decrease followed by a slight increase in the ATP levels at the beginning of the second month of storage. The concentrations of NADH and NADPH in the tissues of 'Conference' pears and 'Jonagold' apples increased in both CA- andair-stored fruits. In contrast, the oxidized nucleotides, NAD and NADP, generally decreased with storage time and no significant differences between the treatments were found. Only 'Conference' pears, when stored in 6% CO2 0.5% O-2, exhibited a strong decline in NADP levels, which was associated with the low metabolic activity due to the high incidence of disorders. No physiological disorder was noted in 'Jonagold' apples during the six monthsof storage time, while 'Conference' pears exhibited disorders such as flesh browning, brown heart and cavities in all CPI-storage conditions. Severity of these disorders depended on CA-conditions and length of storage. For 'Conference' pears the CA-combination of 1.5% CO2 + 1.5% CO2 seemed to be most promising since it resulted in very low percentage of damaged fruits. A probable relationship between energy level expressed by ATP concentrations,ATP:ADP ratios and pyridine nucleotides and the development of these disorders is discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 21:08:08