The apparent feedforward response of stomata to air vapour pressure deficit: Information revealed by different experimental procedures with two rainforest trees

被引：130

作者：

Franks, PJ ^{[1
]}

Cowan, IR ^{[1
]}

Farquhar, GD ^{[1
]}

机构：

[1] COOPERAT RES CTR PLANT SCI,CANBERRA,ACT 2601,AUSTRALIA

来源：

PLANT CELL AND ENVIRONMENT | 1997年 / 20卷 / 01期

关键词：

Dysoxylum gaudichaudianum; Idiospermum australiense; feedforward response; humidity response; stomata;

D O I：

10.1046/j.1365-3040.1997.d01-14.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A decrease in steady-state leaf transpiration rate with increased vapour pressure difference between leaf and air, which is reversible and independent of leaf water status, is evidence for feedforward control of stomatal aperture (Cowan 1977), A recent survey of gas exchange data by Monteith (1995), covering 52 sets of measurements on 16 species, reported that evidence for feedforward control was rare and usually reliant on a single point. We conducted gas exchange experiments on an additional 13 species and observed an apparent feedforward response in only two. However, the response was not reversible and depended upon experimental procedure, In view of this we discuss the appropriate use of the term 'feedforward'.

引用

页码：142 / 145

页数：4

共 3 条

[1] Stomata of trees growing in CO2-enriched air show reduced sensitivity to vapour pressure deficit and drought
Heath, J
[J]. PLANT CELL AND ENVIRONMENT, 1998, 21 (11): : 1077 - 1088
[2] The apparent feed-forward response to vapour pressure deficit of stomata in droughted, field-grown Eucalyptus globulus Labill
Macfarlane, C
White, DA
Adams, MA
[J]. PLANT CELL AND ENVIRONMENT, 2004, 27 (10): : 1268 - 1280
[3] Photosynthetic traits of five neotropical rainforest tree species: Interactions between light response curves and leaf-to-air vapour pressure deficit
Mielke, MS
de Almeida, AAF
Gomes, FP
[J]. BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY, 2005, 48 (05) : 815 - 824

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