Proteomic Identification of Annexins, Calcium-Dependent Membrane Binding Proteins That Mediate Osmotic Stress and Abscisic Acid Signal Transduction in Arabidopsis

Lee, Sumin; Lee, Eun Jung; Yang, Eun Ju; Lee, Ji Eun; Park, Ae Ran; Song, Won Hyun; Park, Ohkmae K.

doi:10.1105/tpc.021683

Cited by 274 publications

(233 citation statements)

References 63 publications

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“…The stress conditions that increase plant annexin abundance and recruitment to membranes (e.g. exogenous abscisic acid, drought, salinity, metal stress [Bianchi et al, 2002;Repetto et al, 2003;Lee et al, 2004;Vandeputte et al, 2007;Konopka-Postupolska et al, 2009]) can also result in ROS production (Demidchik et al, 2003;Boudsocq and Laurière, 2005;Konopka-Postupolska et al, 2009;Rodríguez-Serrano et al, 2009) and the lipid peroxidation that is typified by increases in MDA content (Demiral and Turkan, 2005;Collin et al, 2008). This suggests that annexins could function in integrating ROS and Ca 2+ in stress signaling.…”

Section: Consequences For Ros-and Ca 2+ -Based Signalingmentioning

confidence: 99%

Annexins: Components of the Calcium and Reactive Oxygen Signaling Network

et al. 2010

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Section: Consequences For Ros-and Ca 2+ -Based Signalingmentioning

confidence: 99%

Annexins: Components of the Calcium and Reactive Oxygen Signaling Network

et al. 2010

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“…Arabidopsis thaliana Columbia (Col-0) and Wassilewskija were the wildtype parental lines for the ann1 and gork homozygous insertional T-DNA lines, respectively (Hosy et al, 2003;Lee et al, 2004). The 35S-complemented ANN1 mutant was generated and described previously (Lee et al, 2004).…”

Section: Plant Culturementioning

confidence: 99%

“…This makes ANN1 a prime candidate for the root epidermal PM OH _ -activated conductance. We tested ANN1 function by applying electrophysiological analyses to the homozygous ann1 knockout mutant and the complemented mutant ann1/ANN1 (Lee et al, 2004 Spheroplasts were released from the apices of young wild-type root hairs and the ann1 homozygous single insert T-DNA knockout mutant (Lee et al, 2004). PM currents were obtained using the patch clamp whole-cell recording mode.…”

Section: Introductionmentioning

confidence: 99%

Arabidopsis Annexin1 Mediates the Radical-Activated Plasma Membrane Ca²⁺- and K⁺-Permeable Conductance in Root Cells

et al. 2012

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“…While it is widely documented that environmental conditions greatly affect seed germination, only a few genes have been reported to mediate the environmental signals. 7,13,14 We found that NTL8 is one of such signaling mediators that are functioning in monitoring environmental fluctuations. Furthermore, NTL8 is essentially independent of RGL2, although some degree of feedback control was observed between them.…”

mentioning

confidence: 99%

Gibberellic acid-mediated salt signaling in seed germination

Kim

Park

2008

Plant Signaling & Behavior

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salinity delays seed germination by reducing GA biosynthesis. 7 ABA is a major plant growth hormone mediating plant responses to high salinity, suggesting that the salt effects on seed germination would depends on this growth hormone. We observed that the GA synthetic enzyme gene GA3ox1 is significantly repressed by high salinity. In particular, the salt repression of GA3ox1 is independent of ABA. The GA3ox1 transcription is efficiently repressed by high salinity even in the ABA-deficient aba3-1 mutant to a level comparable to that observed in control plants treated with high salt. These observations support that an ABA-independent salt signaling pathway is also involved in the GA regulation of seed germination.NTL8 is a membrane-bound NAC transcription factor in Arabidopsis. 8 It is unique among the NTL members in that the NTL8 transcription is induced by high salinity specifically in the cold-imbibed seed. While germination of control seeds is greatly reduced in the presence of high salt, that of the ntl8-1 mutant seeds is resistant to high salinity. In contrast, seeds of the transgenic plants overexpressing an active NTL8 form (NTL8ΔC) germinated very poorly under high salt conditions, indicating that NTL8 plays a role in the salt regulation of seed germination. However, the NTL8 transcription is unaffected by ABA, and germination of the ntl8-1 knockout mutant seeds is reduced by ABA to a degree similar to that of control seeds under the same conditions. It is therefore evident that NTL8-mediated salt signaling is independent of ABA.It is notable that NTL8-mediated salt regulation of seed germination is intimately related to GA signaling. RGL2 is one of the DELLA proteins that negatively regulate GA signals. 9 When GA biosynthesis is induced, the RGL2 protein is degraded via the ubiquitin-dependent degradation pathway, causing promotion of seed germination. 10 The Arabidopsis GA biosynthetic mutant, ga1-3, does not germinate in the absence of exogenously applied GA, indicating that GA is essential for seed germination. In contrast, the ga1-3 rgl2 double mutant seeds germinate nearly 100% even in the absence of exogenous GA application, indicating that RGL2 is a negative regulator of GA function in seed germination. 9 However, recent studies strongly support that there would be additional negative regulators other than RGL2 in GA signaling. 11,12 NTL8 is dramatically induced in the imbibed seed, and its induction is further elevated by cold treatment. However, the NTL8 induction decreases to a basal level within 24 hours after cold imbibition. This pattern is very similar to that of RGL2. Germination of the ntl8-1 mutant seeds is nearly 100% in the presence of 100 μM paclobutrazol (PAC), an inhibitor of GA synthesis. The NTL8 protein is released from the membranes through proteolytic cleavage. We found that this activation process is triggered in the PAC-treated Seed germination initiates the postembryonic development of plants, which determines successful seedling establishment and plant propagation. It is th...

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Proteomic Identification of Annexins, Calcium-Dependent Membrane Binding Proteins That Mediate Osmotic Stress and Abscisic Acid Signal Transduction in Arabidopsis

Cited by 274 publications

References 63 publications

Annexins: Components of the Calcium and Reactive Oxygen Signaling Network

Annexins: Components of the Calcium and Reactive Oxygen Signaling Network

Arabidopsis Annexin1 Mediates the Radical-Activated Plasma Membrane Ca²⁺- and K⁺-Permeable Conductance in Root Cells

Gibberellic acid-mediated salt signaling in seed germination

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Proteomic Identification of Annexins, Calcium-Dependent Membrane Binding Proteins That Mediate Osmotic Stress and Abscisic Acid Signal Transduction in Arabidopsis

Cited by 274 publications

References 63 publications

Annexins: Components of the Calcium and Reactive Oxygen Signaling Network

Annexins: Components of the Calcium and Reactive Oxygen Signaling Network

Arabidopsis Annexin1 Mediates the Radical-Activated Plasma Membrane Ca2+- and K+-Permeable Conductance in Root Cells

Gibberellic acid-mediated salt signaling in seed germination

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Arabidopsis Annexin1 Mediates the Radical-Activated Plasma Membrane Ca²⁺- and K⁺-Permeable Conductance in Root Cells