In the calculation of the optical constants by the Kramers-Kronig transform relations,it is essential to carry out a numerical integration on the discrete experimental data of the reflection spectrum.

針對利用K-K轉(zhuǎn)換關(guān)系計(jì)算光學(xué)常數(shù)時,需要對實(shí)驗(yàn)測得光反射譜的離散數(shù)據(jù)進(jìn)行數(shù)值積分,而利用通常的數(shù)值積分方法存在較大的偏差,提出了一種新的數(shù)值積分法,即雙拋物線比例內(nèi)插法(DPPIM)。

KAT1 and AKT1 are the first K~+ channel genes cloned in plant,while HKT1 is the first K~+ carrier gene cloned in wheat.

植物中最先克隆出來的高親和K+轉(zhuǎn)運(yùn)體基因,是小麥的HKT1。

K~+ transporters are generally composed of high-affinity and low-affinity two part.

在分子水平上,高親和吸收主要由KUP/HAK/KT及HKT家族的K+轉(zhuǎn)運(yùn)蛋白來承擔(dān);而Shaker、KCO等家族的K+通道蛋白,則主要在植物的低親和吸收中發(fā)揮重要作用。