The ulcer base at the left shows loss of overlying squamous epithelium with only necrotic debris remaining. 左边溃疡基底面缺少鳞状上皮仅存有坏死的碎片。
The results showed that the prime symptoms of the TPD include laticifer necrosis and cambium-like meristem formation that occurs around the necrotic laticifer in the inner bark. 结果表明该病的基本症状是在树皮内层发生乳管坏死和在坏死的乳管周围产生形成层状分生组织。
