• Keine Ergebnisse gefunden

Changes in Phenylalanine Ammonia-lyase Activity and Gene Expression during Storage of Asparagus Spears

N/A
N/A
Protected

Academic year: 2022

Aktie "Changes in Phenylalanine Ammonia-lyase Activity and Gene Expression during Storage of Asparagus Spears"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Volltext

(1)

Changes in Phenylalanine Ammonia-lyase Activity and Gene Expression during Storage of Asparagus Spears

Pankaj K. Bhowmik

a,*

and Toshiyuki Matsui

b

a National Agricultural Research Center for Hokkaido Region, Sapporo 062Ð8555, Japan.

Fax: 81-11-8 59-21 78. E-mail: pbhowmik@hotmail.com

b Department of Bioresource Production Science, Faculty of Agriculture, Kagawa University, Miki-Cho, Kagawa 761-0795, Japan

* Author for correspondence and reprint requests

Z. Naturforsch.60 c, 128Ð132 (2005); received October 20/November 11, 2004

A cDNA clone coding phenylalanine ammonia-lyase (PAL) was isolated from a cDNA library prepared from asparagus spears (Asparagus officinalis L. cv. Welcome) using the reverse transcription-polymerase chain reaction (RT-PCR). The partial cDNA clone encoded an mRNA of 527 bp and the derived amino acid sequence was found highly homologous to PAL from rice, maize and barley. Northern blot analysis showed an increase of pAS-PAL mRNA until 24 h at 20∞C, which coincided well with PAL activity and fiber development, suggesting that the increase is a response to the wounding associated with harvest.

Key words:Asparagus Spear, Gene Expression, Phenylalanine Ammonia-lyase

Referenzen

ÄHNLICHE DOKUMENTE

Asparagus yield in number of spears in 1998 and 2000 for hand cutting and non-selective

Here we report the molecular cloning and functional identification of a new full-length cDNA encoding FPPS from Ornithogalum saundersiae, a potential medicinal plant that produces

thaliana, it is a salt-tolerant ephemeral plant that is widely distributed in semi-arid and semi-salinized regions of the Xinjiang region of China, thus providing an ideal candidate

In the present study, a total of 1093 cDNA clones randomly selected from the normalized and full- length cDNA library of O.. pumila were subjected to sequencing for generation

Heterogeneous expression of the coding sequence for the mature peptide in Escherichia coli cells showed that the expressed protease with a molecular weight of 27.0 is active,

The catalytic amino acid triads of serine proteinase active sites are marked with an open cycle ( ), the three residues that determine specifi city in trypsin-like enzymes are

A purifi ed thermostable gellan lyase, produced by a thermophilic bacterium, Geobacillus stearothermophilus 98, was characterized in relation to its physicochemical

In the present study we report certain physicochemi- cal properties, namely molecular weight, amino acid composition, secondary structures, and ther- mostability of the gellan