Reposted by Jennifer Lopez Ortiz
An embryo-derived peptide signal directs endosperm polarity in Arabidopsis | Science www.science.org/doi/10.1126/...
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An embryo-derived peptide signal directs endosperm polarity in Arabidopsis
Angiosperm seed formation requires the coordinated development of the products of double fertilization—the embryo and the endosperm. The endosperm mediates efficient nutrient transfer from surrounding...
![Fig. 3 (shortened, full legend in paper): Infrared thermograms, chlorophyll fluorescence, and lignin content of 35S:PtrRZFP1, WT, and KD-PtrRZFP1 poplars. (A) The phenotype of 35S:PtrRZFP1, WT, and KD-PtrRZFP1 poplars that were attacked by M. separata for 24 h. Bars=10 cm. (B) Infrared thermograms of 35S:PtrRZFP1, WT, and KD-PtrRZFP1 poplars attacked by M. separata for 24 h. Bars=10 cm. (C) Chlorophyll fluorescence (Fv/Fm ) imaging of 35S:PtrRZFP1, WT, and KD-PtrRZFP1 poplars attacked by M. separata for 24 h. Bars=1 cm. (D) Chlorophyll fluorescence parameters [Fv/Fm , Y(II), NPQ/4, qP] of 35S:PtrRZFP1, WT, and KD-PtrRZFP1 poplars attacked by M. separata for 24 h. Different letters indicate significant differences between treatments according to the Kruskal–Wallis test [Fv/Fm ,Y(II), NPQ/4] and one-way ANOVA (qP). (E) Leaf sections stained for the WT, 35S:PtrRZFP1, and KD-PtrRZFP1. Scale bars=50 μm. 4×, 10×, and 40× represent the microscope magnification levels.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ggz22gcwkakll7efac23g33s/bafkreidbanw57cfnl63kdh75fgdrfgf5o7pu6nuad7prortjqcpjxznqh4)
