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林业科学 ›› 2000, Vol. 36 ›› Issue (3): 73-76.doi: 10.11707/j.1001-7488.20000312

• 论文及研究报告 • 上一篇    下一篇

酸铝对杉木磷吸收和代谢的影响

杨婉身 陈惠 王晓丽 张健 罗承德   

  1. 四川农业大学,雅安625014
  • 收稿日期:1999-01-26 修回日期:1900-01-01 出版日期:2000-05-25 发布日期:2000-05-25

IFLUENCE OF ACID ALUMINUM ON ABSORPTION AND METABOLISM OF PHOSPHORUS IN CHINESE FIR

Yang Wanshen,Chen Hui,Wang Xiaoli,Zhang Jian Luo Chengde   

  1. Sichuan Agricultural University Ya'an625014
  • Received:1999-01-26 Revised:1900-01-01 Online:2000-05-25 Published:2000-05-25

摘要:

32P示踪原子法通过水培试验研究了酸性条件下铝对1年生杉木的根和叶磷吸收和代谢的影响。结果表明,在pH =3时,用酸铝处理根和叶后,根中32P 无机磷增加到对照的195% ,叶片32P无机磷转运指数由43.0降低到20.0。根的P总含量中的各32P 化合物比例发生较大变化,无机磷增加到对照的175% ,有机化合物、脂类化合物、DNA、RNA分别减少到对照的55% ,42% ,36% ,40% ;叶中各32P化合物的比例除DNA降低外(82%) ,其它变化不大。

关键词: 杉木, 酸铝, 磷, 吸收, 代谢

Abstract:

The influence of acid-aluminum on the absorption and metabolism of the one-year-old chinese fir root and leaf was studied using isotope atom indicator 32P with water culture. The results showed that after the treatment of the acid-aluminum(pH=3), the absorption of 32P-inorganic phosphorus in root increased to 195% of the CK, the transport index of the 32P-phosphorus in the leaf decreased from 43.0 to 20.7. The proportion of the 32P-compounds in the root changed, 32P-inorganic compounds increased to 175% of the CK, and 32P-organic compounds, Lipid, DNA and RNA decreased to 55%,42%,36% and 40%, respectivily. The change of the proportion of the 32P-compounds in the leaf was not evident, except the DNA.

Key words: Chinese fir, Acid-aluminum, Phosphrous, Absorption, Metabolism