
%0 Journal Article
%A Zhang, Jing 
%A Xie, Jianming 
%A Gan, Yantai 
%A Coulter, Jeffrey A. 
%A Dawuda, Mohammed Mujitaba 
%A Yu, Jihua 
%A Lv, Jian 
%A Li, Jing 
%A Zhang, Xiaodan 
%A Tang, Chaonan 
%A Wang, Cheng 
%A Niu, Tianhang 
%A Calderón-Urrea, Alejandro 
%T <i>Corrigendum to</i>: Promoting pepper (<i>Capsicum annuum</i>) photosynthesis via chloroplast ultrastructure and enzyme activities by optimising the ammonium to nitrate ratio
%J Functional Plant Biology
%D 2020/04/06
%V 47
%N 5
%P 473-473
%K 
%R https://doi.org/10.1071/FP19149_CO
%U https://www.publish.csiro.au/paper/FP19149_CO 
%X Optimal plant growth in many species is achieved when the two major forms of N are supplied at a particular ratio. In this pot experiment, the effects of five different ammonium:nitrate ratios (ANRs) (0:100, 12.5:87.5, 25:75, 37.5:62.5, and 50:50) on photosynthesis efficiency in chilli pepper (Capsicum annuum L.) plants were evaluated. The results showed that an ANR of 25:75 increased the contents of chl a, leaf area and dry matter, whereas chl b content was not affected by the ANRs. Regarding chlorophyll fluorescence, an ANR of 25:75 also enhanced the actual photochemical efficiency, photochemical quenching and maximum photosynthetic rate. However, the 0:100 and 50:50 ANRs resulted in higher values for nonphotochemical quenching. An inhibition of maximal photochemical efficiency was found when 50% NH4+ was supplied at the later stage of plant growth. The addition of 25% or 37.5% NH4+ was beneficial for gas exchange parameters and the 25% NH4+ optimised the thylakoid of chloroplasts. Compared with nitrate alone, 12.5&#x2013;50% NH4+ upregulated glutamate dehydrogenase (GDH), the large subunit and the small subunit of Rubisco. It can be concluded that the 25:75 ANR accelerated N assimilation through active GDH, which provides a material basis for chloroplast and Rubisco formation, resulting in the increased photosynthetic rate and enhanced growth in chilli pepper. 
