Significantly increased amino acid accumulation in a novel albino branch of the tea plant (Camellia sinensis)

Planta ◽  
2018 ◽  
Vol 249 (2) ◽  
pp. 363-376 ◽  
Author(s):  
Mengqian Lu ◽  
Jieyun Han ◽  
Biying Zhu ◽  
Huiyan Jia ◽  
Tianyuan Yang ◽  
...  
Keyword(s):  
Amino Acid ◽  
Camellia Sinensis ◽  
Tea Plant ◽  
Acid Accumulation ◽  
Amino Acid Accumulation

scholarly journals Molecular Identification and Characterization of Hydroxycinnamoyl Transferase in Tea Plants (Camellia sinensis L.)

2018 ◽  
Vol 19 (12) ◽  
pp. 3938 ◽  
Author(s):  
Chi-Hui Sun ◽  
Chin-Ying Yang ◽  
Jason Tzen
Keyword(s):  
Abiotic Stress ◽  
Amino Acid ◽  
Camellia Sinensis ◽  
Polymerase Chain Reaction Analysis ◽  
Coffea Canephora ◽  
Tea Plant ◽  
Amino Acid Sequences ◽  
Hibiscus Cannabinus ◽  
Expression Level ◽  
Tea Plants

Tea (Camellia sinensis L.) contains abundant secondary metabolites, which are regulated by numerous enzymes. Hydroxycinnamoyl transferase (HCT) is involved in the biosynthesis pathways of polyphenols and flavonoids, and it can catalyze the transfer of hydroxyconnamoyl coenzyme A to substrates such as quinate, flavanol glycoside, or anthocyanins, thus resulting in the production of chlorogenic acid or acylated flavonol glycoside. In this study, the CsHCT gene was cloned from the Chin-Shin Oolong tea plant, and its protein functions and characteristics were analyzed. The full-length cDNA of CsHCT contains 1311 base pairs and encodes 436 amino acid sequences. Amino acid sequence was highly conserved with other HCTs from Arabidopsis thaliana, Populus trichocarpa, Hibiscus cannabinus, and Coffea canephora. Quantitative real-time polymerase chain reaction analysis showed that CsHCT is highly expressed in the stem tissues of both tea plants and seedlings. The CsHCT expression level was relatively high at high altitudes. The abiotic stress experiment suggested that low temperature, drought, and high salinity induced CsHCT transcription. Furthermore, the results of hormone treatments indicated that abscisic acid (ABA) induced a considerable increase in the CsHCT expression level. This may be attributed to CsHCT involvement in abiotic stress and ABA signaling pathways.

Acidic amino acid accumulation by rat choroid plexus during development

1997 ◽  
Vol 102 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Hameed Al-Sarraf ◽  
Jane E Preston ◽  
Malcolm B Segal
Keyword(s):  
Amino Acid ◽  
Choroid Plexus ◽  
Acidic Amino Acid ◽  
Acid Accumulation ◽  
Amino Acid Accumulation
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