Citrus crops are considered to be relatively poor hosts for Queensland fruit fly, Bactrocera tryoni (Froggatt), as for other tephritid species. Australian citrus growers and crop consultants have reported observable differences in susceptibility of different citrus cultivars under commercial growing conditions. In this study we conducted laboratory tests and field surveys to determine susceptib...

The direct examination of plant canopy temperature can assist in optimizing citrus irrigation management greenhouses. This study aimed to develop a method measure using thermal imaging one-year-old plants greenhouse identify with water stress and verify its potential be used as tool assess status. experiment was conducted for 48 days (27 November 2019 13 January 2020). We evaluated the influenc...

To investigate the relationship between a carotenoid profile and gene expression for carotenoid cleavage dioxygenases, three citrus varieties that exhibit different 9-cis-violaxanthin levels in their juice sacs, Satsuma mandarin (Citrus unshiu Marc.; a variety accumulating a low level of 9-cis-violaxanthin), Valencia orange (Citrus sinensis Osbeck; variety accumulating a high level of 9-cis-vio...

Flower buds of ;Valencia' orange (Citrus sinensis [L.] Osbeck) were able to fix (14)CO(2) into a number of compounds in their own tissues under both light and dark conditions. The total incorporation, however, was about 4-fold higher in the light than in the dark. In the light, 50% of the total (14)C label was found in the neutral fraction (sugars), 22% in the basic fraction (amino acids), and ...

23 In the present study, two LCYb genes (CitLCYb1 and CitLCYb2) were 24 isolated from Satsuma mandarin (Citrus unshiu Marc.), Valencia orange (Citrus 25 sinensis Osbeck) and Lisbon lemon (Citrus limon Burm.f.) and their functions 26 were analyzed by the color complementation assay in lycopene-accumulating E. 27 coli cells. The results showed that CitLCYb1 and CitLCYb2 shared high identity 28 at...

Citrus is one of the most important and widely grown fruit crop with global production ranking firstly among all the fruit crops in the world. Sweet orange accounts for more than half of the Citrus production both in fresh fruit and processed juice. We have sequenced the draft genome of a double-haploid sweet orange (C. sinensis cv. Valencia), and constructed the Citrus sinensis annotation proj...

In the present study, to investigate the mechanisms regulating carotenoid accumulation in citrus, a culture system was set up in vitro with juice sacs of three citrus varieties, Satsuma mandarin (Citrus unshiu Marc.), Valencia orange (Citrus sinensis Osbeck), and Lisbon lemon (Citrus limon Burm.f.). The juice sacs of all the three varieties enlarged gradually with carotenoid accumulation. The c...

Blood orange (Citrus sinensis L. Osbeck) is a rare commercial citrus fruit containing abundant anthocyanins and has numerous health benefits. rootstock determines the yield quality. This study evaluated effect of three most commonly used rootstocks on features, color index, physicochemical parameters, anthocyanin accumulation, biosynthetic gene expression, associated enzymes during development ...