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Digital image analysis of expansion growth of cultured cotton ovules with fibers and their responses to ABA

文献类型： 外文期刊

作者： Fan, Ling 1 ; Lue, Meng 1 ; Ni, Zhi-Yong 1 ; Hu, Wen-Ran 1 ; Wang, Juan 1 ;

作者机构： 1.Xinjiang Acad Agr Sci, Inst Nucl & Biol Technol, Urumqi 830091, Peoples R China

关键词： Abscisic acid;Cotton;Digital image;Expansion growth;Ovule culture

期刊名称：IN VITRO CELLULAR & DEVELOPMENTAL BIOLOGY-PLANT （ 影响因子：2.252； 五年影响因子：2.139 ）

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收录情况： SCI

摘要： Cotton ovule cultures have obvious advantages over whole plants when experimental protocols call for inhibitors, radio-labeled precursors or controlled environmental conditions to be tested. The responses of ovule expansion growth and attached fiber elongation to external factors require accurate measurement techniques. This paper presents a new method for digital image analysis of the growth area of cotton ovules with fibers at high resolution. The method was characterized under constant conditions and during dynamic responses to different levels of ABA (abscisic acid) treatment. The growth area was treated as area occupied within the outline of the Petri dish image of the growing ovule with fibers. Growth area increase showed the same trends as fiber length increase and was significantly correlated with the fiber length increase under different levels of ABA treatment (r (2) = 0.97). This new analysis method provides a simple, noninvasive, and more accurate approach for growth analysis in the cotton ovule culture system. Using this method, the effects of ABA on expansion growth of ovule with fibers were characterized.

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