Laboratory of Phytochemistry, Department of Botany, Institute of Biosciences, University of São Paulo, Brazil.
Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Brazil.
Food Chem. 2019 Mar 1;275:610-617. doi: 10.1016/j.foodchem.2018.09.052. Epub 2018 Sep 10.
Soybean plants of the variety 'MG/BR Conquista' were grown in open top chambers, simulating elevated CO concentration ([CO]) and high temperature under the following treatments: 1) ambient [CO] and ambient temperature (Amb); 2) elevated [CO] (eCO) and ambient temperature (Elev); 3) ambient [CO] and high temperature (Amb/Temp); 4) elevated CO and high temperature (Elev/Temp). The aim was to evaluate responses to elevated [CO] and high temperature, with focus on plant development and seed yield, and composition. Elev stimulated grain yield and Amb/Temp had opposite effect. Several biochemical parameters were affected by Amb/Temp, most of them reversed by simultaneous application of Elev. The oil obtained with Elev/Temp had lower degree of unsaturation. A network of relationships among biochemical parameters of grains at three developmental stages revealed that Amb/Temp and Elev/Temp affect significantly both carbohydrate and lipid metabolisms. No significant difference was obtained comparing networks corresponding to Amb and Elev/Temp.
“MG/BR Conquista”大豆植株在开顶式气室中生长，模拟了升高的 CO 浓度 ([CO]) 和高温，以下列处理方式进行：1）环境 [CO] 和环境温度（Amb）；2）升高的 [CO]（eCO）和环境温度（Elev）；3）环境 [CO] 和高温（Amb/Temp）；4）升高的 CO 和高温（Elev/Temp）。目的是评估对升高的 [CO] 和高温的反应，重点关注植物发育和种子产量以及组成。Elev 刺激了籽粒产量，而 Amb/Temp 则产生了相反的影响。几个生化参数受到 Amb/Temp 的影响，其中大多数通过同时应用 Elev 得到了逆转。Elev/Temp 获得的油不饱和程度较低。在三个发育阶段的谷物生化参数之间的关系网络表明，Amb/Temp 和 Elev/Temp 显著影响碳水化合物和脂质代谢。比较对应 Amb 和 Elev/Temp 的网络时，没有发现显著差异。
