Shaking off the blow: plant adjustments during submergence and post-stress growth in Lotus forage species.

IF 2.6 4区生物学 Q2 PLANT SCIENCES

Functional Plant Biology Pub Date : 2024-01-01 DOI:10.1071/FP23172

Florencia B Buraschi, Federico P O Mollard, Carla E Di Bella, Agustín A Grimoldi, Gustavo G Striker

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引用次数: 0

Abstract

Flooding significantly hampers global forage production. In flood-prone regions, Lotus tenuis and Lotus corniculatus are common forage legumes, yet little is known about their responses to partial or complete submergence. To address this, we evaluated 10 Lotus accessions subjected to 11days of either partial or complete submergence, analysing growth traits related to tolerance and recovery after de-submergence. Principal component analyses revealed that submergence associated growth parameters were linked to L. corniculatus accessions, whereas recovery was associated with L. tenuis accessions. Notably, in L. tenuis , recovery from complete submergence positively correlated with leaf mass fraction but negatively with root mass fraction, showing an opposite pattern than in L. corniculatus . Encouragingly, no trade-off was found between inherent growth capacity and submergence tolerance (both partial and complete) or recovery ability, suggesting genetic selection for increased tolerance would not compromise growth potential. L. tenuis exhibited accessions with both partial and complete submergence tolerance, making them versatile for flood-prone environments, whereas L. corniculatus accessions were better suited for partial submergence. These findings offer valuable insights to enhance forage production in flood-prone areas and guide the selection of appropriate Lotus accessions for specific flood conditions.

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摆脱打击：莲花草种在淹水和胁迫后生长期间的植物调整。

洪水严重阻碍了全球饲料生产。在洪水多发地区，细叶莲花和角叶莲花是常见的饲料豆类，但人们对它们对部分或完全淹没的反应知之甚少。为了解决这一问题，我们评估了10份部分或完全淹水11天的莲花材料，分析了与淹水后的耐受性和恢复性相关的生长性状。主成分分析表明，与淹水相关的生长参数与角花L.corniculatus材料有关，而恢复与细花L.tenuis材料有关。值得注意的是，在L.tenuis中，完全淹没后的恢复与叶质量分数呈正相关，但与根质量分数呈负相关，表现出与L.corniculatus相反的模式。令人鼓舞的是，在固有生长能力和耐淹性（部分和完全）或恢复能力之间没有发现任何权衡，这表明提高耐淹性的遗传选择不会损害生长潜力。细叶L.tenuis的材料同时具有部分和完全的耐淹性，使其适用于洪水易发的环境，而角叶L.corniculatus的材料更适合部分淹没。这些发现为提高洪水易发地区的饲料产量提供了宝贵的见解，并指导在特定的洪水条件下选择合适的莲花材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Functional Plant Biology 生物-植物科学

CiteScore

5.50

自引率

3.30%

发文量

156

审稿时长

1 months

期刊介绍： Functional Plant Biology (formerly known as Australian Journal of Plant Physiology) publishes papers of a broad interest that advance our knowledge on mechanisms by which plants operate and interact with environment. Of specific interest are mechanisms and signal transduction pathways by which plants adapt to extreme environmental conditions such as high and low temperatures, drought, flooding, salinity, pathogens, and other major abiotic and biotic stress factors. FPB also encourages papers on emerging concepts and new tools in plant biology, and studies on the following functional areas encompassing work from the molecular through whole plant to community scale. FPB does not publish merely phenomenological observations or findings of merely applied significance. Functional Plant Biology is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science. Functional Plant Biology is published in affiliation with the Federation of European Societies of Plant Biology and in Australia, is associated with the Australian Society of Plant Scientists and the New Zealand Society of Plant Biologists.