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Review
. 2004 Jun;135(2):615-21.
doi: 10.1104/pp.104.040295. Epub 2004 Jun 1.

From laboratory to field. Using information from Arabidopsis to engineer salt, cold, and drought tolerance in crops

James Z Zhang  1 , Robert A Creelman, Jian-Kang Zhu
Affiliations
Review

From laboratory to field. Using information from Arabidopsis to engineer salt, cold, and drought tolerance in crops

James Z Zhang et al. Plant Physiol. 2004 Jun.
No abstract available

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Figures

Figure 1.
Figure 1.
The SOS signaling pathway for the regulation of Na+ homeostasis and salt tolerance in Arabidopsis. High Na+ stress triggers a calcium signal that activates the SOS3-SOS2 protein kinase complex, which then stimulates the Na+/H+ exchange activity of SOS1 at the plasma membrane. SOS2 also activates Na+/H+ (AtNHX) and Ca2+/H+ (CAX1) exchangers on the vacuolar membrane. The protein phosphatase ABI2 has been shown to physically interact with SOS2 and is proposed to inactivate SOS2. The SOS pathway may down-regulate the activity of Na+ influx transporters (AtHKT1 and NCS). SOS1 in gray indicates that this transporter may also have a sensory role. Dotted lines indicate possible regulation.
Figure 2.
Figure 2.
Transcriptional cascades of low temperature and dehydration signal transduction. ABA-dependent transcriptional factors are shaded, while ABA independent factors are not. Small circles indicate posttranscriptional modification, such as phosphorylation. Transcription factor binding sites are represented as rectangles at the bottom of the figure, with the representative promoters listed below. Dotted lines indicate possible regulation. Double arrow lines indicate possible cross talk.
Figure 3.
Figure 3.
Engineered drought and freezing tolerance in transgenic B. napus through constitutive expression of CBF1 (Jaglo et al., 2001). A, Three-week-old plants were frozen at −6°C for 2 d and then let to recover for 2 d at 28°C before pictures were taken. B, Seven-week-old greenhouse grown plants were withheld water for 1 week and then rewatered for 2 weeks before picture was taken.
See this image and copyright information in PMC

References

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