Abstract:
:Rehydration of desiccated Cuphea seeds results in a rapid morphological change in the seed. Within 20 min thread like epidermal hairs are present on the seed surface. The hairs, which are highly ordered helical structures, are present in the epidermal cells of the desiccated seed. Following emergence the hairs increase in length by means of an eversion process, the mechanism for which is proposed in the text. The hairs were purified to homogeneity and found to be composed of 55% carbohydrate and 45% protein. Following β-elimination of the carbohydrate using NaOH/NaBH4 one major protein of MW 31,000 was seen upon polacrylamide gel electrophoresis in the presence of sodium dodecylsulphate. The protein, here termed helexin, probably plays a major structural role in determining the helical shape of the hairs.
journal_name
Plantajournal_title
Plantaauthors
Stubbs JM,Slabas ARdoi
10.1007/BF00394467subject
Has Abstractpub_date
1982-09-01 00:00:00pages
392-9issue
5eissn
0032-0935issn
1432-2048journal_volume
155pub_type
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