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Cited by 386

The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.

Plasma Membrane Aquaporins Play a Significant Role during Recovery from Water Deficit

Open access
Martre, Pierre, Morillon, Raphaël, Barrieu, François, North, Gretchen B., Nobel, Park S., Chrispeels, Maarten J.·2002·Plant Physiology
DOI 10.1104/pp.009019
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Abstract

The role of plasma membrane aquaporins (PIPs) in water relations of Arabidopsis was studied by examining plants with reduced expression of PIP1 and PIP2 aquaporins, produced by crossing two different antisense lines. Compared with controls, the double antisense (dAS) plants had reduced amounts of PIP1 and PIP2 aquaporins, and the osmotic hydraulic conductivity of isolated root and leaf protoplasts was reduced 5- to 30-fold. The dAS plants had a 3-fold decrease in the root hydraulic conductivity expressed on a root dry mass basis, but a compensating 2.5-fold increase in the root to leaf dry mass ratio. The leaf hydraulic conductance expressed on a leaf area basis was similar for the dAS compared with the control plants. As a result, the hydraulic conductance of the whole plant was unchanged. Under sufficient and under water-deficient conditions, stomatal conductance, transpiration rate, plant hydraulic conductance, leaf water potential, osmotic pressure, and turgor pressure were similar for the dAS compared with the control plants. However, after 4 d of rewatering following 8 d of drying, the control plants recovered their hydraulic conductance and their transpiration rates faster than the dAS plants. Moreover, after rewatering, the leaf water potential was significantly higher for the control than for the dAS plants. From these results, we conclude that the PIPs play an important role in the recovery of Arabidopsis from the water-deficient condition.

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Metadata

Authors
Martre, P., Morillon, R., Barrieu, F., North, G. B., Nobel, P. S., & Chrispeels, M. J.
Venue
Plant Physiology
Publisher
Oxford University Press (OUP)
Published
2002-12-01
Volume
130
Issue
4
Pages
2101-2110
ISSN
  • 0032-0889 (ISSN-L)
  • 1532-2548
DOI
10.1104/pp.009019
OpenAlex
W1989020954
Cited by
386
References
39
FWCI
12.27
Type
journal article
Language
en
Open access
bronze

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