The influence of the colour photo-selective nets on Actinidia deliciosa yield, fruit quality and progression bacterial kiwifruit canker (Pseudomonas syringae pv. actinidiae, Psa) need to be characterised due increasing use these nets, mainly protect from hail storms. From May 2019 onwards, pearl (Pn), yellow (Yn) grey (Gn) were installed permanently in a ‘Hayward’ orchard NW Portugal uncovered ...

Three soft fungicides were evaluated for the control of Botrytis cinerea on kiwifruit in laboratory and field experiments. Four isolates of B. cinerea were tested against two standard fungicides (carbendazim and sulphur) and three products: Mycosin (Schaette) and Mycosan (Schaette), commercially available BIOGRO certified fungicides based on diatomaceous earth, and chitosan (Sigma), derived fro...

Pseudomonas syringae pv. actinidiae (Psa) is a destructive pathogen of kiwifruit bacterial canker disease, causing severe economic losses to kiwifruit industry worldwide. Biovar 5 is the most recently reported biovar of Psa, and is found in only a local area of Japan at present. There is not much information of genetic characteristics of biovar 5. Thus, the genome of biovar 5 was sequenced and ...

Ethylene production is enhanced by wounding during fresh-cut processing and the accumulation of this gas within the packages of fresh-cut ruit can be detrimental to their quality and shelf-life. The effect of 1-methylcyclopropene (1-MCP), an ethylene action blocker, applied before r after processing, on the quality of fresh-cut kiwifruit, mangoes and persimmons was evaluated during storage at 5...

BACKGROUND Dietary treatment is often recommended as the first line of treatment for women with mild iron deficiency. Although it is well established that ascorbic acid enhances iron absorption, it is less clear whether the consumption of ascorbic acid rich foods (such as kiwifruit) with meals fortified with iron improves iron status. The aim of this study is to investigate whether the consumpt...

BACKGROUND Plant acclimation is a highly complex process, which cannot be fully understood by analysis at any one specific level (i.e. subcellular, cellular or whole plant scale). Various soft-computing techniques, such as neural networks or fuzzy logic, were designed to analyze complex multivariate data sets and might be used to model large such multiscale data sets in plant biology. METHODO...

According to the result of this study, there was a significant increase in the amount of sugars including rhamnose, glucose and mannose from October for Abbot and Hayward and from August for Allison until harvesting time (late November). During one month of post harvesting time, the fruits showed no significant changes in sugar concentration except for the Hayward that showed a significant incr...

The use of pasteurization units (PU) as a measure of the lethal effect of processes was proposed with the aim of comparing conventional and novel thermal technologies. Kiwifruit puree was subjected to microwave (1000 and 900 W) and conventional (97 C) heating. Processing conditions of the treatments were chosen to simulate a pasteurization treatment. The temperature profiles of the samples duri...

Pectin, one of the main components of the plant cell wall, is secreted in a highly methyl-esterified form and subsequently deesterified in muro by pectin methylesterases (PMEs). In many developmental processes, PMEs are regulated by either differential expression or posttranslational control by protein inhibitors (PMEIs). PMEIs are typically active against plant PMEs and ineffective against mic...

Pseudomonas syringae pv. actinidiae (Psa) is an emerging phytopathogen causing bacterial canker disease in kiwifruit plants worldwide. Quorum sensing (QS) gene regulation plays important roles in many different bacterial plant pathogens. In this study we analyzed the presence and possible role of N-acyl homoserine lactone (AHL) quorum sensing in Psa. It was established that Psa does not produce...