Łangowski Łukasz, Goñi Oscar, Marques Fabio Serafim, Hamawaki Osvaldo Toshiyuki, da Silva Carolina Oliveira, Nogueira Ana Paula Oliveira, Teixeira Morgana Aparecida Justino, Glasenapp Jacqueline Siqueira, Pereira Marcio, O'Connell Shane
Brandon Bioscience, Tralee, Ireland.
Plant Biostimulant Group, Shannon Applied Biotechnology Centre, Munster Technological University Kerry, Tralee, Ireland.
Front Plant Sci. 2021 Feb 24;12:631768. doi: 10.3389/fpls.2021.631768. eCollection 2021.
Soybean is one of the most valuable commercial crops because of its high protein, carbohydrate, and oil content. The land area cultivated with soybean in subtropical regions, such as Brazil, is continuously expanding, in some instances at the expense of carbon storing natural habitats. Strategies to decrease yield/seed losses and increase production efficiency are urgently required to meet global demand for soybean in a sustainable manner. Here, we evaluated the effectiveness of an extract (ANE), Sealicit, in increasing yields of different soybean varieties, in two geographical regions (Canada and Brazil). In addition, we investigated the potential of Sealicit to reduce pod shattering at the trials in Brazil. Three different concentrations of Sealicit were applied to pod shatter-susceptible (SS) UFUS 6901 and shatter-resistant (SR) UFUS 7415 varieties to assess their impact on pod firmness. SS variety demonstrated a significant decrease in pod shattering, which coincided with deregulation of and expression, genes that determine pod dehiscence, and higher seed weight per pod. Sealicit application to the SR variety did not significantly alter its inherent pod shatter resistance, but provided higher increases in seed yield at harvest. This yield increase maybe associated with to other yield components stimulated by the biostimulant. This work demonstrates that Sealicit, which has previously been shown to improve pod firmness in and selected commercial oilseed rape varieties through gene down-regulation, also has the potential to improve pod resistance and seed productivity in soybean, a member of the legume family sharing a similar strategy for seed dispersal.
大豆是最有价值的经济作物之一，因为它富含蛋白质、碳水化合物和油脂。在亚热带地区，如巴西，种植大豆的土地面积在不断扩大，在某些情况下是以牺牲储存碳的自然栖息地为代价的。迫切需要采取策略来减少产量/种子损失并提高生产效率，以可持续的方式满足全球对大豆的需求。在此，我们评估了一种提取物（ANE，Sealicit）在两个地理区域（加拿大和巴西）提高不同大豆品种产量的有效性。此外，我们在巴西的试验中研究了Sealicit减少豆荚开裂的潜力。将三种不同浓度的Sealicit应用于易裂荚（SS）的UFUS 6901品种和抗裂荚（SR）的UFUS 7415品种，以评估它们对豆荚紧实度的影响。SS品种的豆荚开裂显著减少，这与决定豆荚开裂的 和 基因表达的解除调控以及每荚种子重量增加相吻合。将Sealicit应用于SR品种并没有显著改变其固有的抗裂荚性，但在收获时种子产量有更高的增加。这种产量增加可能与生物刺激剂刺激的其他产量构成因素有关。这项工作表明，Sealicit此前已被证明可通过下调 基因来提高 和选定的商业油菜品种的豆荚紧实度，它也有潜力提高豆科植物大豆的抗荚裂性和种子生产力，大豆与油菜在种子传播方面有类似的策略。
