
Effects of Piriformospora indica on growth and drought resistance in Osmanthus fragrans under water deficit stress
MU Hongna, WANG Wei, FAN Lei, WU Chu, GUO Xiaohua, SUN Taoze
JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2023, Vol. 47 ›› Issue (2) : 101-106.
Effects of Piriformospora indica on growth and drought resistance in Osmanthus fragrans under water deficit stress
【Objective】 The colonization effects of Piriformospora indica on Osmanthus fragrans under drought stress were analyzed. 【Method】 Two-year seedlings cultivated in pots with soil were used for this study. The experiment design was set up with the following parameters: inoculation (40 mL mycelium of P. indica) + drought (the soil water content is 20%-25% of the maximum field water capacity), inoculation + slight drought (45%-50% of the maximum field water capacity), inoculation + normal irrigation (65%-70% of the maximum field water capacity), control (40 mL inactivator) + drought, control + slight drought, and control + drought, six treatments in all. 【Result】 (1) Results showed that the colonization rate of P. indica was up to 81%. (2) Compared to the controls, the inoculated seedlings presented a better performance in plant height, stem diameter, and dry mass under both slight drought and drought stresses, especially the inoculation + drought groups, which showed significant or even extremely significant differences. (3) The protective enzyme activity of POD and SOD and the contents of proline and soluble sugar increased by 13.8%, 37.9%, 47.6% and 40.7%, respectively. (4) In addition, the MDA content decreased more quickly in the inoculation group than in the control group (control + drought). 【Conclusion】 This study found that the symbiosis of P. indica with O. fragrans played a positive role for O. fragrans seedlings in withstanding the negative effects of drought stress summer, most likely by stimulating the increase of SOD and POD enzyme activities and the significant accumulation of osmoregulatory substances. In contrast, inoculation with P. indica had no significant effect on the growth of O. fragrans under mild drought and normal water supply conditions.
Piriformospora indica / Osmanthus fragrans / drought stress / osmotic adjustment / drought resistance
[1] |
母洪娜, 王良桂, 孙陶泽. 桂花多酚氧化酶 (PPO)基因的克隆及表达分析[J]. 分子植物育种, 2017, 15(2): 441-446.
|
[2] |
|
[3] |
|
[4] |
|
[5] |
尹伟, 郁阳, 马秋丽, 等. 桂花叶的化学成分及抗肿瘤活性研究[J]. 热带亚热带植物学报, 2018, 26(2): 178-184.
|
[6] |
崔朋飞, 朱先奇, 李玮. 中国农业碳排放的动态演进与影响因素分析[J]. 世界农业, 2018(4): 127-134.
|
[7] |
姜华, 毕玉芬, 陈连仙, 等. 旱作条件下紫花苜蓿生理特性的研究[J]. 草地学报, 2012, 20(6): 1077-1080.
|
[8] |
|
[9] |
|
[10] |
|
[11] |
|
[12] |
武美燕, 蒿若超, 张文英. 印度梨形孢真菌对干旱胁迫下紫花苜蓿生长及抗旱性的影响[J]. 草业学报, 2016, 25(5): 78-86.
|
[13] |
主朋月, 韩冰, 王晓阳, 等. 印度梨形孢联合紫花苜蓿修复土壤镉污染研究[J]. 环境科学与技术, 2019, 42(6): 21-27.
|
[14] |
杨芮. 印度梨形孢诱导红掌抗干旱和低温胁迫响应[D]. 福州: 福建农林大学, 2018.
|
[15] |
袁芳. 印度梨形孢提高毛竹耐盐能力及其机理的初步研究[D]. 杭州: 浙江农林大学, 2019.
|
[16] |
|
[17] |
苍晶, 赵会杰. 植物生理学实验教程[M]. 北京: 高等教育出版社, 2013.
|
[18] |
韦巧, 武美燕, 张文英. 不同磷水平下印度梨形孢对生菜生长及磷素吸收利用的影响[J]. 河南农业科学, 2017, 46(1): 100-104.
|
[19] |
邢鸿林, 刘天义, 扎史都吉, 等. 光照与氮添加对红皮云杉幼树生长与叶形态功能的影响[J]. 森林工程, 2022, 38(4): 1-9.
|
[20] |
魏媛, 张金池, 尹晓阳, 等. 华山松菌根化幼苗的抗旱特性[J]. 南京林业大学学报(自然科学版), 2007, 31(4):69-72.
|
[21] |
赵金梅, 周禾, 王秀艳. 水分胁迫下苜蓿品种抗旱生理生化指标变化及其相互关系[J]. 草地学报, 2005, 13(3): 184-189.
|
[22] |
关追追, 赵江宁, 邱权, 等. 楸树人工林生长规律及其最优生长模型研究: 以河南省洛宁县楸树为例[J]. 森林工程, 2021, 37(2): 1-10.
|
[23] |
|
[24] |
|
[25] |
|
[26] |
任爱天, 鲁为华, 马春晖, 等. 接种AM真菌对紫花苜蓿抗旱性的影响[J]. 新疆农业科学, 2014, 51(9): 1677-1685.
|
/
〈 |
|
〉 |