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Triterpenoid saponins in tea (Camellia sinensis) plants: biosynthetic gene expression, content variations, chemical identification and cytotoxicity
Tea saponins tea infusions anticancer activity biosynthesis gene expression tea processing
2023/4/20
Very little is known about saponins in tea and their biosynthesis in tea plants despite of theimportance. Here, we studied tea saponins and their biosynthesis genes. Saponins were promptly recovered i...
ESTIMATING BIOCHEMICAL PARAMETERS OF TEA (CAMELLIA SINENSIS (L.)) USING HYPERSPECTRAL TECHNIQUES
Agriculture Quality Hyper spectral Estimation Statistics
2014/4/29
Tea (Camellia Sinensis (L.)) is an important economic crop and the market price of tea depends largely on its quality. This research aims to explore the potential of hyperspectral remote sensing on pr...
Induction of Disease Resistance in Tea (Camellia sinensis L.) by Plant Activators
AGREVO EX probenazole prohydrojasmon tianidil
2010/10/25
About 75% of the tea fields in Japan grow cv. ‘Yabukita,’ which is susceptible to many diseases such as anthracnose and gray blight. Therefore, broad range effective and long-lasting disease control m...
Remobilization of Nitrogen from Vegetative Parts to Sprouting Shoots of Young Tea (Camellia sinensis L.) Plants
Isotope dilution Nitrogen Nitrogen balance Origin of nitrogen Remobilization
2009/7/30
Uptake, distribution and redistribution of 15N-nitrogen in young tea plants were examined during the first flush season in order to know the seasonal changes in nitrogen uptake and the origin of nitro...
Analysis of Canopy Photosynthesis in Mature Tea (Camellia sinensis L.) Bush at Late Autumn
Canopy photosynthesis Light penetration Light-photosynthesis curve Oxygen electrode Shade-leaves
2009/7/29
Canopy photosynthesis in mature tea bush was analyzed at late autumn in order to determine the canopy depth effective for photosynthesis. Relative light intensity inside the bush declined exponentiall...
Seasonal Changes in Uptake, Distribution and Redistribution of 15N-Nitrogen in Young Tea (Camellia sinensis L.) Plants
Camellia sinensis First flush shoots Isotope dilution Seasonal change
2009/7/28
In order to know the seasonal changes in nitrogen requirement of tea plants, hydroponically-grown young plants were pulse-labelled with 15N during each month throughout the year in a glasshouse. Upta...
Stratiform Analysis of Growth, Total Nitrogen, Free Amino Acid and Neutral Detergent Fiber Concentration of New Shoots in Mechanically-plucked Tea (Camellia sinensis L.) Bush
Camellia sinensis Free amino acid Neutral detergent fiber Rail-tracking tea plucker Stratified clip method
2009/7/28
Some factors which might relate to yield and quality were inverstigated by stratiform analysis in order to estimate the most suitable plucking height in the mechanically-plucked tea bush. During a per...
Photosynthesis and Productive Structure of Mature Tea (Camellia sinensis L.) Bush during Growth of the First Flush
Canopy photosynthesis First flush shoots Light interception Overwintering leaves Reserve carbohydrates
2009/7/24
Photosynthesis and canopy structure of a mechanically-plucked tea bush were investigated in spring to clarify the role of overwintering leaves in growth of first flush shoots. After bud break, light i...
Suitable Level of Nitrogen Fertilizer for Tea (Camellia sinensis L.) Plants in Relation to Growth, Photosynthesis, Nitrogen Uptake and Accumulation of Free Amino Acids
Arginine Camellia sinensis Critical level Excess nitrogen Free amino acid Green tea
2009/7/22
The physiological responses of pot-grown tea plants to various levels of nitrogen fertilizer were investigated to determine the suitable level of nitrogen for tea plants. Defining an arbitrary unit of...
Influences of Harvesting Time and Plucking Position of the Second Crop on New Shoot Growth and Yield of the First Crop of the Next Year for the Tea (Camellia sinensis L.)
Camellia sinensis L Number of new shoots Plucking Skiffing Tea plants Yield
2009/7/21
Because the trading price of low-grade tea has been sluggish, tea cultivation techniques must be aimed to increase the yield and quality primarily of the first crop, which is material of high-grade te...
Application of Plant Canopy Analyzer for Mature Tea(Camellia sinensis L.)Bush
Camellia sinensis L Canopy structure Grown LAI Plant canopy analyzer Stratified clip method
2009/7/15
A non destructive method using Plant Canopy Analyzer(LAI-2000, LI-COR, Inc.)was applied to estimate a leaf area index(LAI)for mature tea(Camellia sinensis L.)bushes. The LAI estimated by PCA showed a...
Influences of Air Temperature on the Progress of Growth Stage and Freezing Hardiness in Over-Wintering Tea [Camellia sinensis (L.) 0. Kuntze] Bud(Agronomy)
Average air temperature Bud Camellia sinensis (L.) O. Kuntze Freezing hardiness
2009/7/10
In this study, the progress of growth stage and change in freezing hardiness of tea [Camellia sinensis (L.) O. Kuntze] bud were examined from January to April in relation to air temperature for 10 yea...
Changes in Epigallocatechin-3-O-(3-O-methyl) Gallate and Strictinin Contents of Tea （Camellia sinensis L.）Cultivar ‘Benifuki’ in Various Degrees of Maturity and Leaf Order
green tea strictinin anti-allergic action
2009/6/18
We have reported that O-methylated EGCGs (epigallocatechin-3-O-(3-O-methyl) gallate (EGCG3″Me) and epigallocatechin-3-O-(4-O-methyl) gallate) and strictinin had anti-allergic action, and that the tea ...
Changes in O-methylated Catechin and Chemical Component Contents of ‘Benifuuki’ Green Tea （Camellia sinensis L.）Beverage under Various Extraction Conditions
green tea beverage epigallocatechin-3-O-(3-O-methyl) gallate gallocatechin-3-O-(3-O-methyl) gallate
2009/6/10
We examined the effects of extraction conditions on the anti-allergic components, epigallocatechin-3-O-(3-O-methyl) gallate (EGCG3″Me) and strictinin during the manufacture of anti-allergic ‘Benifuuki...
Root characteristics of tea [Camellia sinensis (L.) O. Kuntze] and silver oak [Grevillea robusta（A. Cunn）] in a mixed tea plantation at Munnar, Kerala
Feeder roots Mixed species plantations Rooting pattern Root starch reserves
2009/2/19
Rooting characteristics of tea (Camellia sinensis) and silver oak (Grevillea robusta) were evaluated in a mixed plantation of these species in the Western Ghats in Munnar, Kerala employing three techn...