SONG Changmei,LI Qinghong.Effects of Three Exogenous Substances on the Photosynthesis of Prunus pseudocerasu L.‘Manaohong’ Infected With Phytoplasma[J].Northern Horticulture,2024,(24):21-28.[doi:10.11937/bfyy.20242533]
三种外源物质对植原体侵染“玛瑙红”樱桃光合作用的影响
- Title:
- Effects of Three Exogenous Substances on the Photosynthesis of Prunus pseudocerasu L.‘Manaohong’ Infected With Phytoplasma
- 文章编号:
- 1001-0009(2024)24-0021-08
- Keywords:
- Prunus pseudocerasu L.‘Manaohong’; methyl jasmonate; melatonin; tetracycline; photosynthesis
- 分类号:
- S 662.5
- 文献标志码:
- A
- 摘要:
- 以感染植原体病害的“玛瑙红”樱桃为试材，采用外源茉莉酸甲酯（0.1 mmol·L-1）、褪黑素（0.1 mmol·L-1）和四环素（1 mmol·L-1）进行处理，测定植株光合参数、叶绿素和相关酶活性，并进行叶片显微结构观察，研究了3种外源物质对植原体侵染后的光合作用的影响，以期为“玛瑙红”樱桃植原体病害防治提供参考依据。结果表明：3种物质能改善感病植株叶片的显微结构，提高叶绿素含量，提高光合参数及部分酶活性。茉莉酸甲酯处理与四环素处理结果相似，优于褪黑素处理。
- Abstract:
- Prunus pseudocerasu L.‘Manaohong’ infected with phytoplasma diseases were used as test materials.Exogenous methyl jasmonate (0.1 mmols·L-1)，melatonin (0.1 mmol·L-1)，and tetracycline (1 mmol·L-1) were used for treatments.Then the photosynthetic parameters，chlorophyll and related enzyme activity of plants were determined，the microstructure of leaves was observed，and the effects of three exogenous substances on photosynthesis after phytoplasma infection were studied，in order to provide reference for the prevention and control of Prunus pseudocerasu L.‘Manaohong’ phytoplasma disease.The results showed that the three substances could improve the microstructure of the leaves of susceptible plants，increase chlorophyll content，increase photosynthetic parameters and some enzyme activity.The results of methyl jasmonate treatment were similar to those of tetracycline treatment，but superior to melatonin treatment.
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备注/Memo
low temperature stress；abscisic acid；seed germination