Search

Copyright of Tropical Geography is the property of Tropical Geography Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective] To use Nit mutant system to explore the genetic diversity of fragrant pear from different geographical sources in Xinjiang. [Method] In this study, Nit mutant technology (nitrate-resistant defective mutant) was used for the first time to study the nutritional affinity of Cytospora pyri, 13 strains of Korla pear tree rot from three different growing areas in southern Xinjiang. [Result] 115 Nit mutants were cultured in chlorate medium (KPS) from 13 strains, and 41 of them did not mutate. In the identification of mutant stability, 33 stable Nit mutants and 82 unstable Nit mutants were identified. The phenotype of the resulting Nit mutants was identified as NitD 85% and NitB 15%. [Conclusion] In this study, two Nit mutants were obtained, indicating that there may be two mutations in the nitrogen assimilation pathway of C. pyri. All isolates tested were able to utilize hypoxanthine, and the ability to use hypoxanthine ruled out the possibility that molybdenum cofactor sites were blocked. [ABSTRACT FROM AUTHOR]

Copyright of Rolling Stock (1002-7602) is the property of Rolling Stock Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Geomechanics is the property of Journal of Geomechanics Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Guangxi Normal University - Natural Science Edition is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)