最大电子传递速率的确定及其对电子流分配的影响

叶子飘,段世华,安婷,康华靖

Determination of maximum electron transport rate and its impact on allocation of electron flow

Zi-Piao YE,Shi-Hua DUAN,Ting AN,Hua-Jing KANG

表1 由非直角双曲线模型(模型I)和光合电子流对光响应机理模型(模型II)拟合两种光照条件下电子传递速率对光的响应曲线(J-I曲线)得到最大电子传递速率(J_max)和饱和光强(PAR_sat)两个参数及与它们对应的观测数据(平均值±标准误差, n = 5)

Table 1 Observed data and results fitted by non-rectangular hyperbola model (model I) and the mechanistic model of light-response of electron transport rate (model II) for light-response curves of electron transport rate (J-I curves) of soybean under two light environments (mean ± SE, n = 5)

参数 Parameter	处理 Treatment
	遮阴 Shading			全日照 Full sunlight
	模型I Model I	模型II Model II	测量值 Observed value	模型I Model I	模型II Model II	测量值 Observed value
最大电子传递速率 Maximum electron transport rate (J_max, mmol·m^-2·s^-1)	269.13 ± 5.22^a	236.68 ± 1.39^b	?236.29	354.26 ± 17.73^a	307.91 ± 8.95^b	?306.43
饱和光强 Saturated light intensity (PAR_sat, mmol·m^-2·s^-1)	—	1 839.98 ± 50.53	?1 800	—	1 967.69 ± 110.64	?2 000
确定系数 Determination coefficient (R²)	0.999	0.999	—	0.999	0.999	—