Abstract
Linalool is an important compound that contributes to the floral aroma in wines. This study showed the effect of light exposure on linalool accumulation in berries. The grape bunches were covered with films that block the full light spectrum (Shade) and the UV spectrum (UV-block), and a transparent film (Control). The linalool content was significantly higher in juice from Control-covered berries than in juice from Shade- and UV-block-covered berries, and the expression levels of the representative genes in linalool biosynthesis in Shade- and UV-block-covered berries were markedly lower than in Control-covered berries. These findings suggest that exposing berries to light is essential for linalool biosynthesis. To reflect sunlight onto grape clusters, reflective sheets were placed on the ground of a vineyard. The linalool content in berries exposed to sunlight reflected from the reflective sheets was higher than those in the control.
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Claims 6
Claim · model-written summary
Control-covered berry juice had significantly higher linalool content than Shade-covered berry juice.
Verbatim
e0“The linalool content was significantly higher in juice from Control-covered berries than in juice from Shade- and UV-block-covered berries”
t0“grape berries”
Claim · model-written summary
Control-covered berry juice had significantly higher linalool content than UV-block-covered berry juice.
Verbatim
e0“The linalool content was significantly higher in juice from Control-covered berries than in juice from Shade- and UV-block-covered berries”
t0“grape berries”
Claim · model-written summary
Linalool biosynthesis gene expression was markedly lower in Shade-covered berries than controls.
Verbatim
e0“the expression levels of the representative genes in linalool biosynthesis in Shade- and UV-block-covered berries were markedly lower than in Control-covered berries”
t0“grape berries”
Claim · model-written summary
Linalool biosynthesis gene expression was markedly lower in UV-block-covered berries than controls.
Verbatim
e0“the expression levels of the representative genes in linalool biosynthesis in Shade- and UV-block-covered berries were markedly lower than in Control-covered berries”
t0“grape berries”
Claim · model-written summary
The findings suggest berry light exposure is essential for linalool biosynthesis.
Not reportedDirection
Verbatim
e0“exposing berries to light is essential for linalool biosynthesis”
t0“grape berries”
Claim · model-written summary
Reflective sheets increased linalool content in sunlit berries relative to controls.
Verbatim
e0“The linalool content in berries exposed to sunlight reflected from the reflective sheets was higher than those in the control”
t0“grape berries”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.