Comparison of the effects of a kinase‐dead mutation of <scp>FERONIA</scp> on ovule fertilization and root growth of Arabidopsis

Haruta, Miyoshi; Gaddameedi, Vilas; Burch, Heather L.; Fernandez, Donna E.; Sussman, Michael R.

doi:10.1002/1873-3468.13157

Cited by 34 publications

(44 citation statements)

References 24 publications

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“…This evidence places FER upstream of ROS production, whereas FER, HERK1/ANJ and LRE would function upstream of pollen tube reception. These recent findings support multiple signal transduction mechanisms for FER in a context-dependent manner [61]. Kinase-inactive mutants of FER rescue the pollen tube overgrowth defect in fer mutants, but cannot restore the sensitivity to exogenous RALF1 in root elongation [61].…”

Section: Discussionmentioning

confidence: 65%

“…Micropylar ROS accumulation prior to pollen tube arrival depends on NADPH oxidase activity and FER, suggesting a similar pathway to root hairs may take place in synergid cells [20]. Kinase-inactive mutants of FER rescue the pollen tube overgrowth defect in fer mutants, but cannot restore the sensitivity to exogenous RALF1 in root elongation [61]. One possible explanation is that FER is a dual regulator in synergid cells, promoting ROS production and regulating pollen tube reception, while HERK1/ANJ and LRE functions are restricted to the latter under our environmental conditions.…”

Section: Discussionmentioning

confidence: 99%

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CrRLK1L receptor‐like kinases HERK1 and ANJEA are female determinants of pollen tube reception

et al. 2019

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Communication between the gametophytes is vital for angiosperm fertilisation. Multiple CrRLK1L-type receptor kinases prevent premature pollen tube burst, while another CrRLK1L protein, FERONIA (FER), is required for pollen tube reception in the female gametophyte. We report here the identification of two additional CrRLK1L homologues, HERCULES RECEPTOR KINASE 1 (HERK1) and ANJEA (ANJ), which act redundantly to promote pollen tube growth arrest at the synergid cells. HERK1 and ANJ localise to the filiform apparatus of the synergid cells in unfertilised ovules, and in herk1 anj mutants, a majority of ovules remain unfertilised due to pollen tube overgrowth, together indicating that HERK1 and ANJ act as female determinants for fertilisation. As in fer mutants, the synergid cell-specific, endomembrane protein NORTIA (NTA) is not relocalised after pollen tube reception; however, unlike fer mutants, reactive oxygen species levels are unaffected in herk1 anj double mutants. Both ANJ and HERK1 associate with FER and its proposed co-receptor LORELEI (LRE) in planta. Together, our data indicate that HERK1 and ANJ act with FER to mediate female-male gametophyte interactions during plant fertilisation.

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Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

CrRLK1L receptor‐like kinases HERK1 and ANJEA are female determinants of pollen tube reception

et al. 2019

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“…Accordingly, we define the vacuolar size as a suitable parameter to quantify an important intracellular process, marking the regulation of cell expansion. FER-dependent phosphorylation acts as a signalling relay (Shih et al, 2014;Du et al, 2016;Haruta et al, 2018) and modulates, among others, the Rho of plants (ROP) guanine nucleotide exchange factor 1 (GEF1; Duan et al, 2010). FER has been previously proposed to be required for cell wall sensing (Shih et al, 2014), but molecular interactors involved in the underlying mechanism were largely unknown.…”

Section: Discussionmentioning

confidence: 99%

Extracellular matrix sensing by FERONIA and Leucine‐Rich Repeat Extensins controls vacuolar expansion during cellular elongation in Arabidopsis thaliana

et al. 2019

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Cellular elongation requires the defined coordination of intra‐ and extracellular processes, but the underlying mechanisms are largely unknown. The vacuole is the biggest plant organelle, and its dimensions play a role in defining plant cell expansion rates. Here, we show that the increase in vacuolar occupancy enables cellular elongation with relatively little enlargement of the cytosol in Arabidopsis thaliana. We demonstrate that cell wall properties are sensed and impact on the intracellular expansion of the vacuole. Using vacuolar morphology as a quantitative read‐out for intracellular growth processes, we reveal that the underlying cell wall sensing mechanism requires interaction of extracellular leucine‐rich repeat extensins (LRXs) with the receptor‐like kinase FERONIA (FER). Our data suggest that LRXs link plasma membrane‐localised FER with the cell wall, allowing this module to jointly sense and convey extracellular signals to the cell. This mechanism coordinates the onset of cell wall acidification and loosening with the increase in vacuolar size.

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“…Cross-talk between FER and the ABA pathway indicates that FER plays an important role in ABA-mediated stress responses [5,6]. Recent studies of the Rapid Alkalinization Factor-FER pathway indicate that FER may modulate immune signaling [11][12][13]. Recent studies of the Rapid Alkalinization Factor-FER pathway indicate that FER may modulate immune signaling [11][12][13].…”

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confidence: 99%

FERONIA regulates auxin‐mediated lateral root development and primary root gravitropism

et al. 2018

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The Arabidopsis FERONIA (FER) receptor kinase is a key hub of cell signaling networks mediating various hormone, stress, and immune responses. Previous studies have shown that FER functions correlate with auxin responses, but the underlying molecular mechanism is unknown. Here, we demonstrate that the primary root of the fer‐4 mutant displays increased lateral root branching and a delayed gravitropic response, which are associated with polar auxin transport (PAT). Our data suggest that aberrant PIN2 polarity is responsible for the delayed gravitropic response in fer‐4. Furthermore, the diminished F‐actin cytoskeleton in fer‐4 implies that FER modulates F‐actin‐mediated PIN2 polar localization. Our findings provide new insights into the function of FER in PAT.

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Comparison of the effects of a kinase‐dead mutation of FERONIA on ovule fertilization and root growth of Arabidopsis

Cited by 34 publications

References 24 publications

CrRLK1L receptor‐like kinases HERK1 and ANJEA are female determinants of pollen tube reception

CrRLK1L receptor‐like kinases HERK1 and ANJEA are female determinants of pollen tube reception

Extracellular matrix sensing by FERONIA and Leucine‐Rich Repeat Extensins controls vacuolar expansion during cellular elongation in Arabidopsis thaliana

FERONIA regulates auxin‐mediated lateral root development and primary root gravitropism

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