摘要
Dear Editor, Verticillium wilt, caused by the soil-borne fungus Verticillium dahlia Klep., poses a major threat to a broad host range of more than 400 plant species, including economically impor- tant cotton, and causes serious loss of lint yield in China, the USA and may other countries （Bell, 1992; Bejorano-Alcazar et al., 1995; Zhang et al., 2012）. The colonization of cotton roots by V. dahliae in soil naturally leads to the colonization of vascular tissues in cotton （Garber and Houston, 1966; Gerik and Huisman, 1988）. Recently, the development of confocal laser scanning microscopy （CLSM） has significantly increased our knowledge of the colonization process of V. dahliae on various plant roots （Eynck et al., 2007; Vallad and Subbarao, 2008; Prieto et al., 2009; Zhang et al., 2012）. However, the comprehensive observation of the cotton living root colonization process by V. dahliae under CLSM is not likely to be practicable due to the large size of cotton roots.
Dear Editor, Verticillium wilt, caused by the soil-borne fungus Verticillium dahlia Klep., poses a major threat to a broad host range of more than 400 plant species, including economically impor- tant cotton, and causes serious loss of lint yield in China, the USA and may other countries （Bell, 1992; Bejorano-Alcazar et al., 1995; Zhang et al., 2012）. The colonization of cotton roots by V. dahliae in soil naturally leads to the colonization of vascular tissues in cotton （Garber and Houston, 1966; Gerik and Huisman, 1988）. Recently, the development of confocal laser scanning microscopy （CLSM） has significantly increased our knowledge of the colonization process of V. dahliae on various plant roots （Eynck et al., 2007; Vallad and Subbarao, 2008; Prieto et al., 2009; Zhang et al., 2012）. However, the comprehensive observation of the cotton living root colonization process by V. dahliae under CLSM is not likely to be practicable due to the large size of cotton roots.
