植物研究 ›› 2022, Vol. 42 ›› Issue (1): 81-92.doi: 10.7525/j.issn.1673-5102.2022.01.009
收稿日期:2020-10-08
									
				
									
				
									
				
											出版日期:2022-01-20
									
				
											发布日期:2021-12-30
									
			通讯作者:
					丁兰
											E-mail:dinglan@nwnu.edu.cn
												作者简介:郇兆蔚(1996—),女,硕士研究生,主要从事植物细胞信号转导方面的研究。
				
							基金资助:
        
               		Zhaowei Huan1, Qiaoming Ou2, Lan Ding1(
)
			  
			
			
			
                
        
    
Received:2020-10-08
									
				
									
				
									
				
											Online:2022-01-20
									
				
											Published:2021-12-30
									
			Contact:
					Lan Ding   
											E-mail:dinglan@nwnu.edu.cn
												About author:HUAN Zhao-Wei(1996—),female,master,mainly engaged in research of plant cell signal transduction.				
							Supported by:摘要:
以黑麦草(Lolium perenne L.)和莴苣(Lacutuca sativa L.)为受试植物,研究了3种对映—贝壳杉烷二萜wangzaozin A、leukamenin E和weisiensin B对受试植物种子萌发、幼苗生长、叶绿素和膜损伤的影响,旨在评估3种二萜的化感作用潜能。结果显示:不同浓度的3种二萜对黑麦草和莴苣种子的萌发稍有降低,但明显延迟种子萌发时间;较高浓度下,3种二萜对黑麦草和莴苣幼苗的根长、苗长、鲜质量和干质量均有显著的抑制作用,并显示了浓度依赖性;同时,3种二萜显著降低黑麦草和莴苣幼苗叶片叶绿素a和叶绿素b含量,显著升高丙二醛(MDA)含量和相对电导率,而相对含水量呈下降趋势。上述结果表明,3种二萜通过影响受试植物的光合作用能力,引起细胞膜氧化损伤,导致叶片保水性降低,抑制受试植物幼苗的生长。
中图分类号:
郇兆蔚, 欧巧明, 丁兰. 3种天然二萜的化感作用及机制的研究[J]. 植物研究, 2022, 42(1): 81-92.
Zhaowei Huan, Qiaoming Ou, Lan Ding. Allelopathy and Its Mechanism of Three Natural Diterpenes[J]. Bulletin of Botanical Research, 2022, 42(1): 81-92.
表1
3种二萜对黑麦草种子萌发和幼苗生长的影响
化合物种类 Compounds types  | 浓度 Concentration /(μmol·L-1)  | 萌发率 Germination rate /%  | 萌发指数 Germination index  | 根长 Root length /cm  | 苗长 Seedling length /cm  | 鲜质量 Fresh weight /mg  | 干质量 Dry weight /mg  | 
|---|---|---|---|---|---|---|---|
| wangzaozin A | 0 | 94.44±1.15 | 46.73±1.63 | 3.35±0.27 | 2.73±0.15 | 6.29±0.51 | 1.57±0.06 | 
| 5 | 90.00±2.65 | 39.93±3.19** | 2.86±0.18** | 2.56±0.12** | 6.11±0.48* | 1.23±0.21** | |
| 10 | 88.89±3.21 | 38.38±2.05** | 2.01±0.18** | 1.94±0.11** | 3.99±0.13** | 1.09±0.08** | |
| 25 | 85.56±1.53 | 35.51±1.90** | 1.14±0.06** | 1.48±0.05** | 2.40±0.14** | 0.83±0.07** | |
| leukamenin E | 0 | 94.44±1.15 | 46.73±1.63 | 3.35±0.27 | 2.73±0.15 | 6.29±0.51 | 1.57±0.06 | 
| 5 | 95.56±0.58 | 47.52±1.10 | 3.05±0.31* | 2.61±0.29 | 5.95±0.69 | 1.53±0.11 | |
| 10 | 90.00±3.46 | 39.32±3.37** | 2.78±0.42** | 1.96±0.08** | 5.22±0.23** | 1.44±0.04** | |
| 25 | 86.67±4.36 | 37.17±6.00** | 1.21±0.14** | 1.63±0.27** | 3.81±0.78** | 1.17±0.04** | |
| weisiensin B | 0 | 94.44±1.15 | 46.73±1.63 | 3.35±0.27 | 2.73±0.15 | 6.29±0.51 | 1.57±0.06 | 
| 5 | 92.22±3.21 | 40.79±5.19 | 3.07±0.06** | 2.46±0.17** | 6.10±0.19 | 1.55±0.03 | |
| 10 | 87.78±2.52 | 37.63±3.46* | 2.74±0.15** | 2.12±0.08** | 5.73±0.40** | 1.50±0.21 | |
| 25 | 88.89±2.52 | 38.54±3.66* | 1.24±0.22** | 1.34±0.08** | 4.21±0.21** | 1.17±0.14** | 
表2
3种二萜对莴苣种子萌发和幼苗生长的影响
化合物种类 Compounds types  | 浓度 Concentration /(μmol·L-1)  | 萌发率 Germination rate /%  | 萌发指数 Germination index  | 根长 Root length /cm  | 苗长 Seedling length /cm  | 鲜质量 Fresh weight /mg  | 干质量 Dry weight /mg  | 
|---|---|---|---|---|---|---|---|
| wangzaozin A | 0 | 91.11±2.52 | 38.46±2.25 | 3.67±0.15 | 2.48±0.11 | 14.53±0.24 | 1.19±0.07 | 
| 2 | 86.67±1.73 | 32.43±1.78* | 3.77±0.41 | 2.74±0.14** | 13.25±0.39** | 1.26±0.10* | |
| 4 | 85.56±3.06 | 31.06±4.07* | 2.96±0.28** | 2.13±0.20** | 12.05±1.29** | 1.06±0.10** | |
| 8 | 80.00±1.73 | 26.82±1.89** | 1.17±0.31** | 0.98±0.13** | 8.49±1.45** | 0.96±0.088** | |
| leukamenin E | 0 | 91.11±2.52 | 38.46±2.25 | 3.67±0.15 | 2.48±0.11 | 14.53±0.24 | 1.19±0.07 | 
| 2 | 87.78±3.06 | 33.54±5.40 | 3.82±0.23 | 2.89±0.07** | 15.39±0.29* | 1.32±0.05** | |
| 4 | 85.56±4.16 | 32.38±5.63 | 3.21±0.19** | 2.34±0.21* | 12.33±0.23** | 0.92±0.05** | |
| 8 | 82.221±1.15 | 29.62±1.87* | 2.12±0.09** | 1.35±0.22** | 9.42±0.22** | 0.80±0.06** | |
| weisiensin B | 0 | 91.11±2.52 | 38.46±2.25 | 3.67±0.15 | 2.48±0.11 | 14.53±0.24 | 1.19±0.07 | 
| 2 | 88.89±4.16 | 34.08±4.87 | 3.39±0.16** | 2.45±0.13 | 13.48±1.11* | 1.07±0.05** | |
| 4 | 83.33±2.65 | 31.11±3.06* | 3.29±0.18** | 2.30±0.21* | 13.05±0.32* | 1.00±0.15** | |
| 8 | 85.56±1.53 | 32.41±1.30* | 2.82±0.22** | 1.79±0.38** | 12.07±0.26** | 0.94±0.08** | 
表3
3种二萜对黑麦草和莴苣的化感效应指数
受试植物 Tested plant  | 化合物种类 Compounds types  | 浓度 Concentration /(μmol•L-1)  | 化感效应指数RI值 Allelopathic response index  | |||||
|---|---|---|---|---|---|---|---|---|
萌发率 Germination rate  | 萌发指数 Germination index  | 根长 Root length  | 苗长 Seedling height  | 鲜质量 Fresh weight  | 干质量 Dry weight  | |||
黑麦草 L. perenne L.  | wangzaozin A | 5 | -0.05 | -0.15 | -0.15 | -0.06 | -0.03 | -0.22 | 
| 10 | -0.05 | -0.18 | -0.40 | -0.29 | -0.37 | -0.31 | ||
| 25 | -0.09 | -0.24 | -0.66 | -0.46 | -0.62 | -0.47 | ||
| leukamenin E | 5 | 0.01 | 0.02 | -0.09 | -0.04 | -0.05 | -0.03 | |
| 10 | -0.05 | -0.16 | -0.17 | -0.28 | -0.17 | -0.08 | ||
| 25 | -0.09 | -0.22 | -0.64 | -0.40 | -0.39 | -0.25 | ||
| weisiensin B | 5 | -0.02 | -0.13 | -0.08 | -0.10 | -0.03 | -0.01 | |
| 10 | -0.07 | -0.19 | -0.18 | -0.22 | -0.09 | -0.12 | ||
| 25 | -0.06 | -0.18 | -0.63 | -0.51 | -0.33 | -0.25 | ||
莴苣 L. sativa L.  | wangzaozin A | 2 | -0.05 | -0.16 | 0.03 | 0.09 | -0.09 | 0.06 | 
| 4 | -0.06 | -0.19 | -0.19 | -0.14 | -0.17 | -0.11 | ||
| 8 | -0.12 | -0.30 | -0.68 | -0.60 | -0.42 | -0.19 | ||
| leukamenin E | 2 | -0.04 | -0.13 | 0.04 | 0.14 | 0.06 | 0.10 | |
| 4 | -0.06 | -0.16 | -0.13 | -0.06 | -0.15 | -0.23 | ||
| 8 | -0.10 | -0.23 | -0.42 | -0.46 | -0.35 | -0.33 | ||
| weisiensin B | 2 | -0.02 | -0.11 | -0.08 | -0.01 | -0.07 | -0.10 | |
| 4 | -0.09 | -0.19 | -0.10 | -0.07 | -0.10 | -0.16 | ||
| 8 | -0.06 | -0.16 | -0.23 | -0.31 | -0.17 | -0.21 | ||
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