Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (4): 124-126.doi: 10.11924/j.issn.1000-6850.casb14110090

Special Issue: 生物技术

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Comparative Analysis on Anatomy of Xylem Cells in New Shoots of Different Pear Varieties

Yang Haibo1, Yang Peifang2, Wang Juan1,2, Meng Lifeng1, Qiao Huiqin3   

  1. (1Institute of Pomology, Shanxi Academy of Agricultural Sciences, Taigu Shanxi 030815;2College of Horticulture, Shanxi Agricultural University, Taigu Shanxi 030801;3Shanxi Animal Husbandry General Group, Taiyuan 030001)
  • Received:2014-11-17 Revised:2014-12-15 Accepted:2014-12-22 Online:2015-03-20 Published:2015-03-20

Abstract: The anatomical structure of Suisho pear and Hosui pear was studied to provide theoretical basis for research on eco-physiological traits and their development. Xylem cells in new shoots of Suisho pear, Hosui pear and Suli pear (the CK) were used as test materials, the cellular anatomical traits of which were compared and analyzed, including vessel element, tracheid molecule and fiber molecule. The results indicated that pits on vessel cells of Suisho pear were larger and denser than those of Hosui pear and Suli pear. Meanwhile, malformed vessels of Suisho pear were obviously fewer than that of the other 2 varieties. The maximum diameter for vessel element of Hosui pear was larger than that of Suisho pear and Suli pear, which showed a highly significant difference. The end tail length for Hosui pear was shorter than that of Suisho pear and Suli pear, which also showed a highly significant difference. No significant difference existed in fiber molecule length among the 3 varieties. The diameter of fiber molecule for Hosui pear was smaller than that of Suisho pear and Suli pear, which again showed a highly significant difference. Compared with Suli pear, Suisho pear had better transverse transport ability, while Hosui pear had better vertical transport ability. These traits helped to improve their ecological adaptability.