柳苗中的变异电波传递

林业科学 ›› 1997, Vol. 33 ›› Issue (1): 1-8.

• 论文及研究报告 • 下一篇

柳苗中的变异电波传递

郭金耀¹,花宝光²,娄成后³

1. 山西农业大学太谷 030801
2. 北京农学院北京 102206
3. 北京农业大学北京 100094

收稿日期:1995-07-25 出版日期:1997-01-25 发布日期:1997-01-25
基金资助:
国家自然科学基金

VARIATION POTENTIAL TRANSMISSION IN WILLOW PLANTLET

Jinyao Guo¹,Baoguang Hua²,Chenghou Lou³

1. Plant physiology laboratory department of forestry, Shanxi Agricultural University Taigu 030801
2. Plant physiology and biochemistry laboratory, Beijing Agricultural College Beijing 102206
3. Plant physiology laboratory, Beijing Agricultural University Beijing 100094

Received:1995-07-25 Online:1997-01-25 Published:1997-01-25

摘要/Abstract

摘要：

盐击柳树幼苗根系或烧伤其茎引发的变异电波(VP)可顺利地从环剥后的木质部通过,并再横向传递至韧皮部(树皮)。但若将柳茎中的木质部切除一段, VP的传递即被阻断。在柳茎木质部中, VP传递随水分供应的调节而定,水分供应充分时, VP传递速度正常;水分供应亏缺时, VP传递速度减慢或停止。这表明,刺激产生的伤素是借助木质部导管中的蒸腾流传递的, VP是木质部中伤素传导的反映。

关键词: 伤害性刺激, 木质部, 韧皮部, 变异电波

Abstract:

Transmission of variation potential (VP) in willow (Salix babylonica) plantlet can be evoked by treating the root with 500 mmol /L NaCl solution, or by a local burn on the stem. VP transmission can still occur, if the rind is removed by ringing. but transmission fails if a portion of the central woody core(xylem) is removed furthermore, its transmission rate varies with the extent of water supply. The normal rate is kept in adequate water supply. and would slow down or come into standstill as water shortage is getting severe. The results seem to indicate that in the present case, Ricca′s factor released at the NaCl- treated root (serving as the chemical signal) can be carried along through xylem by transpiration stream. VP appears at the rind on its arrival.

Key words: Injurious stimulation, Xylem phloem, Variation potential,

郭金耀,花宝光,娄成后. 柳苗中的变异电波传递[J]. 林业科学, 1997, 33(1): 1-8.

Jinyao Guo,Baoguang Hua,Chenghou Lou. VARIATION POTENTIAL TRANSMISSION IN WILLOW PLANTLET[J]. Scientia Silvae Sinicae, 1997, 33(1): 1-8.

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参考文献 10

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5	Van Sambeek J. W. , Pickard B. G . Mediation of rapid electrical, metabolic, transpirational and photosynthetic changes by factors released from wounds. Ⅱ. Mediation of the variation potential by Ricca′s factor. Can. J. Bot, 1976b. 54, 2651- 2661.
6	Van Sambeek J. W. , Pickard B. G . Mediation of sapid electrical. metabolic transpirational, and photosynthetic changes by factors released from wounds. Ⅲ. Measurements of CO₂ and H₂O flux. Can. J. Bot, 1976c. 54, 2662- 2671.
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8	娄成后, 邵莉楣, 祝宗岭. 植物体内刺激的电波传递. 北京农业大学学报, 1959. 5, 1- 12.
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柳苗中的变异电波传递

VARIATION POTENTIAL TRANSMISSION IN WILLOW PLANTLET

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