Comparison of callose plug structure between dicotyledon and monocotyledon pollen germinatedin vitro
نویسندگان
چکیده
منابع مشابه
Plant Carbonic Anhydrases: II. Preparation and Some Properties of Monocotyledon and Dicotyledon Enzyme Types.
Carbonic anhydrase (EC.4.2.1.1) was purified from leaves of the dicotyledon Pisum sativum L. (56-fold) and from leaves of the monocotyledon Tradescantia albiflora Kunth. (24-fold). The molecular weight of the Pisum enzyme was estimated to be 188,000 +/- 8,000 with subunit sizes of 28,000 +/- 3,000 and 56,600 +/- 3,500. It contained 1 mole zinc per 32,500 +/- 2,000 g protein. The molecular weigh...
متن کاملUnplugging the callose plug from sieve pores.
The presence of callose in sieve plates has been known for a long time, but how this polysaccharide plug is synthesized has remained unsolved. Two independent laboratories have recently reported the identification of callose synthase 7 (CalS7), also known as glucan synthase-like 7 (GSL7), as the enzyme responsible for callose deposition in sieve plates. Mutant plants defective in this enzyme fa...
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ژورنال
عنوان ژورنال: Grana
سال: 2006
ISSN: 0017-3134,1651-2049
DOI: 10.1080/00173130600726687