濒危植物九龙山榧与其同属广布种榧树叶绿素荧光特性的比较

doi:10.13466/j.cnki.lyzygl.2021.01.012

林业资源管理 ›› 2021›› Issue (1): 86-93.doi: 10.13466/j.cnki.lyzygl.2021.01.012

濒危植物九龙山榧与其同属广布种榧树叶绿素荧光特性的比较

郑英茂¹(), 周钰鸿², 潘成椿¹, 刘菊莲¹, 蓝本宽³, 康华靖⁴()

1.浙江九龙山国家级自然保护区管理局,浙江遂昌 323300
2.浙江大盘山国家级自然保护区管理局,浙江磐安322300
3.遂昌县自然资源和规划局,浙江遂昌 323312
4.温州市农业科学研究院,浙江温州 325006

收稿日期:2020-12-07 修回日期:2020-12-29 出版日期:2021-02-28 发布日期:2021-03-30
通讯作者: 康华靖
作者简介:郑英茂(1965-),男,浙江遂昌人,工程师,主要从事自然资源保护和研究。Email: 542421963@qq.com
基金资助:
浙江省珍稀濒危野生动植物抢救保护行动方案(2017-2020);浙江省科技计划项目(2017C02040);温州市重点科技创新团队项目(C20150008)

Comparison of Chlorophyll Fluorescence Characteristics Between Torreya jiulongshanensis Leaves and its Widespread Congener T.Grandis

ZHENG Yingmao¹(), ZHOU Yuhong², PAN Chengchun¹, LIU Julian¹, LAN Benkuan³, KANG Huajing⁴()

1. Zhejiang Jiulongshan National Nature Reserve Administration,Suichang 323300,China
2. Zhejiang Dapanshan National Nature Reserve Administration,Pan'an 322300,China
3. Suichang Bureau of natural resources and planning,Suichang 323300,China
4. Wenzhou Academy of Agricultural Sciences,Wenzhou 325006,China

Received:2020-12-07 Revised:2020-12-29 Online:2021-02-28 Published:2021-03-30
Contact: KANG Huajing

摘要/Abstract

摘要：

分别以栽培和野生条件下的九龙山榧(Torreya jiulongshanensis)(雌、雄株)及同属广布种——榧树(T.grandis)为材料,比较了其叶片叶绿素荧光参数对光强的响应,以期为九龙山榧种质资源保育提供科学依据。结果表明,栽培条件下,九龙山榧雌株幼苗叶片的光系统I最大荧光值整体高于榧树及九龙山榧的雄株;九龙山榧雌、雄株幼苗的光饱和点也较高,分别为788.581和550.640 μmol/(m²·s),所对应的最大电子传递速率也较高,分别为40.690和39.546 μmol/(m²·s)。同样,在野外条件下,九龙山榧雌、雄株的光饱和点也均显著高于榧树,分别为1 165.361和1 416.817 μmol/(m²·s),光系统II最大电子传递速率也以九龙山榧雌株为最高,其值为80.322 μmol/(m²·s)。由此可见,九龙山榧为阳生树种,且与榧树相比具有更强的光合潜力。

关键词: 九龙山榧, 榧树, 栽培条件, 野生条件, 荧光参数, 光强

Abstract:

In order to provide scientific basis for the conservation of Torreya jiulongshanensis germplasm resources,response of chlorophyll fluorescence parameters of T.jiulongshanensis(male and female) and its widespread congener T.grandis leaves(under cultivation and field conditions,respectively) to light intensity are compared in this paper.The results show that,under cultivation conditions,the maximum fluorescence value of photosystem I of female seedlings of T.jiulongshanensis is higher than that of male seedlings and T.grandis.The light saturation points of female and male seedlings of T.jiulongshanensis are 788.581 and 550.640 μmol/(m²·s),respectively,and the corresponding maximum electron transfer rates are 40.690 and 39.546 μmol/(m²·s),respectively.Similarly,under field conditions,the light saturation points of female and male plants of T.jiulongshanensis are significantly higher than those of T.grandis,which stand at 1 165.361 and 1 416.817 μmol/(m²·s),respectively.The maximum electron transfer rate of photosystem II of female plants of T.jiulongshanensis is the highest,which is 80.322 μmol/(m²·s).Therefore,T.jiulongshanensis is a sunny tree species and has stronger photosynthetic potential than T.grandis.

Key words: Torreya jiulongshanensis, T.grandis, cultivation conditions, field conditions, chlorophyll fluorescence parameters, light intensity

中图分类号:

Q9453.79

郑英茂, 周钰鸿, 潘成椿, 刘菊莲, 蓝本宽, 康华靖. 濒危植物九龙山榧与其同属广布种榧树叶绿素荧光特性的比较[J]. 林业资源管理, 2021,(1): 86-93.

ZHENG Yingmao, ZHOU Yuhong, PAN Chengchun, LIU Julian, LAN Benkuan, KANG Huajing. Comparison of Chlorophyll Fluorescence Characteristics Between Torreya jiulongshanensis Leaves and its Widespread Congener T.Grandis[J]. FOREST RESOURCES WANAGEMENT, 2021,(1): 86-93.

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植物	模型	初始斜率/ (μmol/mol)	最大电子传递速率/ μmol/(m²·s)	饱和光强/ μmol/(m²·s)	确定系数(R²)
榧树	测量值	—	34.286±5.658 b	?500 a	—
	拟合值 model I	0.445±0.045	35.339±5.897 b	454.130±25.859 a	0.980±0.006
	model II	0.551±0.057	40.186±7.011 a	242.554±7.319 b	0.954±0.013
	model III	0.287±0.023	34.080±5.233 b	172.810±5.609 c	0.998±0.001
	modelIV	0.415±0.049	35.334±5.377 b	188.265±10.284 c	0.988±0.006
九龙山榧-雄	测量值	—	39.800±3.408 b	?759 a	—
	拟合值 model I	0.447±0.013	39.546±3.315 b	550.640±50.913 b	0.986±0.002
	model II	0.526±0.022	46.033±4.252 a	258.474±8.515 c	0.975±0.006
	model III	0.345±0.081	40.342±3.817 b	203.618±24.380 d	0.995±0.08
	model IV	0.401±0.017	38.791±3.342 b	198.067±6.805 d	0.993±0.001
九龙山榧-雌	测量值	—	41.243±3.160 b	?759 a	—
	拟合值 model I	0.416±0.021	40.690±3.038 b	788.581±92.911a	0.995±0.002
	model II	0.453±0.030	47.366±3.988 a	276.608±7.646 b	0.993±0.003
	model III	0.345±0.015	43.357±3.048 b	238.162±11.668 c	0.998±0.001
	model IV	0.344±0.024	39.479±3.318 b	214.681±6.080c	0.995±0.001

植物	初始斜率/(μmol/mol)	最大电子传递速率/(μmol/(m²·s))	饱和光强/(μmol/(m²·s))	确定系数(R²)
榧树	0.448±0.020a	64.743± 1.337b	914.207±116.195c	0.877±0.033
九龙山榧-雄	0.459±0.082a	66.308±16.309b	1416.817± 34.586a	0.878±0.046
九龙山榧-雌	0.439±0.014a	80.322± 4.407a	1165.361±141.734b	0.909±0.065

濒危植物九龙山榧与其同属广布种榧树叶绿素荧光特性的比较

Comparison of Chlorophyll Fluorescence Characteristics Between Torreya jiulongshanensis Leaves and its Widespread Congener T.Grandis

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