The Plasma Membrane of Avena Coleoptile Protoplasts
نویسندگان
چکیده
منابع مشابه
The Plasma Membrane of Avena Coleoptile Protoplasts ' Received for publication
Treatment of living protoplasts from the Avenia coleoptile with enzymes and chemicals has provided new information about the external surface of the plasma membrane. Treatments with selected detergents and polyene antibiotics indicate that little sterol is present. The lysis of protoplasts in carboxymethyl-RNase which is enzymatically almost inactive provides strong evidence that the lysis prev...
متن کاملThe Plasma Membrane of Avena Coleoptile
Treatment of living protoplasts from the Avenia coleoptile with enzymes and chemicals has provided new information about the external surface of the plasma membrane. Treatments with selected detergents and polyene antibiotics indicate that little sterol is present. The lysis of protoplasts in carboxymethyl-RNase which is enzymatically almost inactive provides strong evidence that the lysis prev...
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A method has been developed whereby the second positive phototropism can be observed separately from the first positive and negative phototropic responses which also occur in oat coleoptiles. Although the second positive phototropic response has often been referred to as the base response, photoreception for it is shown to occur mainly in the apical 3 mm of the coleoptile. The Bunsen-Roscoe rec...
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Sum rv01,1f. A mo(lifie(l )rocedlure is presente(d for the bioassay of aulxin lusilng -Iv'eno coleoptile segments. The modifications introduicedl restult in a substantial improvement of the commonly uised( coleoptile elongatioil tests. The proposed test retains the simplicity of physical reqillremeints and of manipulatioIn characteristic of all elongatioln tests. The maiin featuire of the propo...
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Elongation rate and heat produced by Avena coleoptile segments suspended in sucrose buffer solutions were measured at pH values from 3.5 to 8.5. The caloric efficiency of elongation (CEE) was defined as the ratio of the rate of elongation to the rate of heat production. Elongation and CEE were greatest at intermediate pH values, but heat production (about 1 cal/g.hr) was insensitive to pH withi...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1971
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.47.2.192