The effects of high oxygen partial pressure on vegetable Allium seeds with a short shelf-life

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F20%3A00531298" target="_blank" >RIV/61389030:_____/20:00531298 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/20:73604611

Result on the web

<a href="http://doi.org/10.1007/s00425-020-03398-y" target="_blank" >http://doi.org/10.1007/s00425-020-03398-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00425-020-03398-y" target="_blank" >10.1007/s00425-020-03398-y</a>

Result language

angličtina

Original language name

The effects of high oxygen partial pressure on vegetable Allium seeds with a short shelf-life

Original language description

Main conclusion: Storage at an elevated partial pressure of oxygen and classical artificial ageing cause a rapid loss of seed viability of short-lived vegetable seeds. Abstract: Prolonging seed longevity during storage is of major importance for gene banks and the horticultural industry. Slowing down biochemical deterioration, including oxygen-dependent deterioration caused by oxidative processes can boost longevity. This can be affected by the seed structure and the oxygen permeability of seed coat layers. Classical artificial seed ageing assays are used to estimate seed 'shelf-life' by mimicking seed ageing via incubating seeds at elevated temperature and elevated relative humidity (causing elevated equilibrium seed moisture content). In this study, we show that seed lots of vegetable Allium species are short-lived both during dry storage for several months and in seed ageing assays at elevated seed moisture levels. Micromorphological analysis of the Allium cepa x Allium fistulosum salad onion seed identified intact seed coat and endosperm layers. Allium seeds equilibrated at 70% relative humidity were used to investigate seed ageing at tenfold elevated partial pressure of oxygen (high pO2) at room temperature (22 ºC) in comparison to classical artificial ageing at elevated temperature (42 ºC). Our results reveal that 30 days high pO2 treatment causes a rapid loss of seed viability which quantitatively corresponded to the seed viability loss observed by ~ 7 days classical artificial ageing. A similar number of normal seedlings develop from the germinating (viable) proportion of seeds in the population. Many long-lived seeds first exhibit a seed vigour loss, evident from a reduced germination speed, preceding the loss in seed viability. In contrast to this, seed ageing of our short-lived Allium vegetable seems to be characterised by a rapid loss in seed viability.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Planta

ISSN

0032-0935

e-ISSN

—

Volume of the periodical

251

Issue of the periodical within the volume

6

Country of publishing house

DE - GERMANY

Number of pages

9

Pages from-to

105

UT code for WoS article

000533457200001

EID of the result in the Scopus database

2-s2.0-85084785811