Skip to main content
Figure 4 | BMC Plant Biology

Figure 4

From: A strong constitutive ethylene-response phenotype conferred on Arabidopsis plants containing null mutations in the ethylene receptors ETR1 and ERS1

Figure 4

Light-grown etr1-9;ers1-3 mutant plants display multiple effects upon growth and development. (A) Comparison of 5-week-old wild type (wt) and etr1-9;ers1-3 double mutant. (B) Comparison of 5-week-old etr1-9;ers1-3 and etr1-7;ers1-2 double mutants. Scale bar = 5 mm. (C) Inflorescence of 7-week-old etr1-9;ers1-3 mutant. Coin for scale = 18 mm. (D) 7-week-old etr1-7;ers1-2 mutant plant that has not bolted. Scale bar = 5 mm. (E) Flower of etr1-9;ers1-3 mutant plant, showing reduced sepals, petals, and stamens compared to the central carpels. (F) Floral phenotypes of adult plants. Flowers of equivalent age are shown. Note that the etr1-7;ers1-2 flowers arrest at an earlier developmental stage than the etr1-9;ers1-3 flowers. No defects in flower development are observed in etr1-9;ers1-3 transformed with wild-type ETR1 (tETR1). Scale bar = 1 mm. (G) Location of filamentous structures on the inflorescence of the etr1-9;ers1-3 mutant. (H) and (I) Close-ups of filamentous structures found on etr1-9;ers1-3 and etr1-7;ers1-2 mutants, respectively. (J) Phenotype of etr1-9;ers1-3 transformed with ETR1 (tETR1) in comparison to wild type (wt). Six-week-old plants are shown. (K) Inflorescence of the etr1-9;ers1-3 mutant transformed with ETR1 (tETR1) compared to wild type. Note that the transformed mutant no longer produces filamentous structures.

Back to article page