Plant Physiology 160: 1551-1566 (2012)

Distinct cell wall architectures in seed endosperms in representatives of the Brassicaceae and Solanaceae [W][OA]

Kieran J.D. Lee, Bas J.W. Dekkers, Tina Steinbrecher, Cherie T. Walsh, Tony Bacic, Leonie Bentsink, Gerhard Leubner-Metzger, J. Paul Knox

Centre for Plant Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK (KL, PK)
Wageningen Seed Lab, Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands (BD, LB)
Department of Molecular Plant Physiology, Utrecht University, 3584 CH Utrecht, The Netherlands (BD, LB)
University of Freiburg, Faculty of Biology, Institute for Biology II, Botany/Plant Physiology, D-79104 Freiburg, Germany (TS*, GLM*)
ARC Centre of Excellence in Plant Cell Walls, School of Botany, University of Melbourne, Parkville, Victoria 3010, Australia (BD, LB)
* Current Address: School of Biological Sciences, Royal Holloway, University of London, Bourne Building 3-30, Egham, Surrey, TW20 0EX, UK

Received July 13, 2012; Accepted September 4, 2012; Published September 6, 2012.

Puncture Force tobacco cress seed  

Figure 7. Puncture force analyses of tobacco and Lepidium endosperms during germination.

A, Puncture force measurements of ME and CE from tobacco.
B, Puncture force measurements of ME and PE from Lepidium.

Tobacco seeds exhibit testa rupture (TR) at 36 h, and endosperm rupture (ER) begins at 60 h. Lepidium seeds exhibit testa rupture at 7 h, and endosperm rupture begins at 14 h. Pre-endosperm rupture tobacco and Lepidium seeds were selected for the 60- and 14-h measurements, respectively.

Article in PDF format (1.5 MB)
Supplementary data file (2 MB)
Fig. 1         Fig. 2         Fig. 3         Fig. 4         Fig. 5         Fig. 6
Fig. 7         Fig. 8         Fig. S1       Fig. S2       Table 1    
© American Society of Plant Biologists

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