• Relationship of Viroids to Macrophylla Decline

      Taylor, Kathryn; Langham, Richard; Xiong, Zhongguo; Wright, Glenn (College of Agriculture, University of Arizona (Tucson, AZ), 1996-09)
      A physiological characterization has established that vascular changes in Macrophylla decline affected trees are not similar in character to xyloporosis affected trees. In addition, a survey of Macrophylla decline affected citrus did not establish any genetic similarity between Macrophylla decline and xyloporosis. We report diagnosis of either CCV or CEV by reverse transcription-polymerase chain reaction (RT-PCR), as well as diagnosis of Macrophylla decline or xyloporosis by Zn-distribution, water conductivity, accumulation of decline- specific proteins and examination of phloem morphology in lemon trees on the Macrophylla rootstock.