Effects of cadmium on the metabolic activity of Avena sativa plants grown in soil or hydroponic culture

被引：19

作者：

Astolfi, S ^{[1
]}

Zuchi, S ^{[1
]}

Passera, C ^{[1
]}

机构：

[1] Univ Tuscia, Dipartimento Agrobiol & Agrochim, I-01100 Viterbo, Italy

来源：

BIOLOGIA PLANTARUM | 2004年 / 48卷 / 03期

关键词：

carbon metabolism; nitrogen metabolism; sulphur metabolism; guaiacol peroxidase activity;

D O I：

10.1023/B:BIOP.0000041095.50979.b0

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Oat ( Avena sativa L.) plants cultured in soil and hydroponic culture were treated with cadmium [0.154 mg g(-1)( dry soil) and 100 muM CdSO4, respectively] for 21 d and growth rate and various biochemical processes were studied. Applied cadmium reduced plant growth and chlorophyll content. Changes in activity of enzymes involved in C, N and S metabolism and in guaiacol peroxidase activity were observed. In particular, O-acetylserine sulphydrylase (OASS; EC 4.2.99.8) activity was increased by Cd exposure in both growth conditions, probably as a resistance mechanism to cadmium based on the production of phytochelatins. Results show that both field and hydroponic conditions represent suitable systems for investigating Cd effects on plant growth and metabolism.

引用

页码：413 / 418

页数：6

共 33 条

[1]

[Anonymous], 1990, SULFUR NUTR SULFUR A

[2] Effects of irradiance-sulphur interactions on enzymes of carbon, nitrogen, and sulphur metabolism in maize plants [J].