ORCID Profile
0000-0003-1420-412X
Current Organisations
University of Tasmania
,
Spanish National Center for Biotechnology
,
Magnus Kahl Seeds
,
Lebanese Agricultural Research Institute
,
Department of Primary Industries, Parks, Water and Environment
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Publications
Potato Tuber Greening: a Review of Predisposing Factors, Management and Future Challenges
Publisher: Springer Science and Business Media LLC
Date: 21-03-2018
Suberin deposition in potato periderm: a novel resistance mechanism against tuber greening
Publisher: Wiley
Date: 02-01-2020
DOI: 10.1111/NPH.16334
Abstract: Light-induced tuber greening is one of the most important quality defects of potato. Although varietal and maturity factors are known to affect greening resistance, physiological mechanisms of resistance are poorly understood. We proposed that physiological and biochemical factors within the tuber periderm provide resistance and hypothesised that resistance is primarily related to suberin content. We investigated differences in the tuber periderm between genotypes and tuber maturities that varied in greening propensity. We examined suberin and light-induced pigment accumulation, and phellem cell development and studied greening propensity in mutant and chemically treated tubers with enhanced suberisation. Resistance to greening was strongly linked to increased suberin in the periderm, which varied with variety and tuber maturity. Furthermore, greening was reduced in mutant and chemically treated tubers with enhanced suberisation. Increases in phellem cell layers and light-induced carotenoids and anthocyanins were identified as secondary resistance factors. Our work represents the first physiological mechanism of varietal and tuber maturity resistance to greening, expanding the known functionality of suberin and providing for the first time a biomarker that will aid producers and breeders in selection and improvement of potato varieties for greening resistance.
Quantifying risk factors associated with light-induced potato tuber greening in retail stores
Publisher: Cold Spring Harbor Laboratory
Date: 18-06-2020
DOI: 10.1101/2020.06.18.158857
Abstract: Light conditions in retail stores may contribute to potato greening. In this study, we aimed to develop a potato tuber greening risk rating model for retail stores based on light quality and intensity parameters. This was achieved by firstly exposing three potato varieties (Nicola, Maranca and Kennebec) to seven specific light wavelengths (370, 420, 450, 530, 630, 660 and 735 nm) to determine the tuber greening propensity. Detailed light quality and intensity measurements from 25 retail stores were then combined with the greening propensity data to develop a tuber greening risk rating model. Our study showed that maximum greening occurred under blue light (450 nm), while 53%, 65% and 75% less occurred under green (530 nm), red (660 nm) and orange (630 nm) light, respectively. Greening risk, which varied between stores, was found to be related to light intensity level, and partially explained potato stock loss in stores. Our results from this study suggested that other in-store management practices, including lighting duration, average potato turnover, and light protection during non-retail periods, likely influence tuber greening risk.
Potato Tuber Greening Risk is Associated with Tuber Nitrogen Content
Publisher: Springer Science and Business Media LLC
Date: 18-06-2020
Evaluation of diversity and conservation status of Matricaria chamomilla (L.) and Matricaria aurea (Loefl.) Sch. Bip. in Lebanon
Publisher: OMICS Publishing Group
Date: 2018
Related Organisations
Department Of Primary Industries, Parks, Water And Environment
Location: Australia
Related Funding Activities
No related grants have been discovered for Sabine Tanios.