Jun Han, Yu Hu, Tao Xue, Fang Wu, Huirong Duan, Jie Yang, Lichao Xue, Huanhuan Liang, Xiongzhou Liu, Qianqian Yang, Fuping Tian
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The objective of this study was to elucidate the impact of SAP on the physiological and biochemical characteristics, as well as the β-ODAP content, of grass pea under drought conditions.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>We conducted potting experiments of natural drought with <i>L. sativus</i> cv. Wugong Yongshou (WGYS), <i>L. sativus</i> cv. Jingbian (JB), <i>L. sativus</i> cv. Aksu (AKS), and cultivated grass pea (ZP) materials with different SAP ratios (0.00%, 0.25%, 0.50%, 0.75%, 1.00%).</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The research confirmed that the addition of 0.50% SAP had a positive effect on soil physicochemical properties and growth parameters of grass pea, including plant height, leaf area, leaf water potential, seed yield, and straw yield per plant; Following an eight-day cessation of irrigation, the transpiration rate (E), stomatal conductance (GH<sub>2</sub>O), intercellular CO<sub>2</sub> concentration (Ci), and net photosynthetic rate (A) of the four grass pea leaves exhibited a notable optimization in comparison to the control without SAP; The levels of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), malondialdehyde (MDA), and β-ODAP (leaves, seeds, and straw) of four grass pea plants treated with 0.50% SAP were significantly decreased.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>SAP can improve soil water-holding capacity, leaf photosynthesis to alleviate oxidative damage caused by drought stress in grass pea, reduce β-ODAP content, and promote low-toxicity and high-yield planting.</p>","PeriodicalId":17042,"journal":{"name":"Journal of Soil Science and Plant Nutrition","volume":null,"pages":null},"PeriodicalIF":3.4000,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Superabsorbent Polymer Reduces β-ODAP Content in Grass Pea by Improving Soil Water Status and Plant Drought Tolerance\",\"authors\":\"Jun Han, Yu Hu, Tao Xue, Fang Wu, Huirong Duan, Jie Yang, Lichao Xue, Huanhuan Liang, Xiongzhou Liu, Qianqian Yang, Fuping Tian\",\"doi\":\"10.1007/s42729-024-01936-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Purpose</h3><p>Grass pea (<i>Lathyrus sativus</i> L.) has significant nutritional value and broad-spectrum resistance properties. 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引用次数: 0
摘要
目的豌豆（Lathyrus sativus L.）具有重要的营养价值和广谱抗性。然而，其种子中的神经毒素β-N-草酰-L-α, β-二氨基丙酸（β-ODAP）在干旱胁迫下会成倍增加，过量摄入会导致神经源性瘫痪。超强吸水聚合物（SAP）具有改善土壤理化性质和缓解植物干旱胁迫的潜力，但不同浓度的 SAP 对干旱条件下禾本科豌豆的土壤水分供应、生理性状和 β-ODAP 含量的影响尚不清楚。本研究的目的是阐明 SAP 对干旱条件下禾本科豌豆的生理生化特性及 β-ODAP 含量的影响。方法我们用武功永寿（WGYS）、靖边（JB）、阿克苏（AKS）和栽培禾本科豌豆（ZP）等不同SAP比例（0.00%、0.25%、0.50%、0.75%、1.00%）的材料进行了自然干旱条件下的盆栽试验。50%的 SAP 对禾本科豌豆的土壤理化性质和生长参数（包括株高、叶面积、叶片水势、种子产量和单株秸秆产量）有积极影响；停止灌溉八天后，与未施用 SAP 的对照组相比，四片禾本科豌豆叶片的蒸腾速率（E）、气孔导度（GH2O）、细胞间二氧化碳浓度（Ci）和净光合速率（A）均有显著优化；用 0.50% SAP 处理的四种禾本科豌豆植株的超氧化物歧化酶（SOD）、过氧化氢酶（CAT）、过氧化物酶（POD）、丙二醛（MDA）和 β-ODAP（叶片、种子和秸秆）水平显著降低。结论SAP 可提高土壤持水量、叶片光合作用以减轻干旱胁迫对禾本科豌豆造成的氧化损伤，降低 β-ODAP 含量，促进低毒高产种植。
Superabsorbent Polymer Reduces β-ODAP Content in Grass Pea by Improving Soil Water Status and Plant Drought Tolerance
Purpose
Grass pea (Lathyrus sativus L.) has significant nutritional value and broad-spectrum resistance properties. However, the neurotoxin β-N-oxalyl-L-α, β-diaminopropionic acid (β-ODAP) in its seeds increases exponentially during drought stress, and overconsumption can lead to neurogenic hypoparalysis. Superabsorbent polymer (SAP) has the potential to improve soil physicochemical properties and alleviate plant drought stress, but the effects of different SAP concentrations on soil water availability, physiological traits, and β-ODAP content of grass pea under drought conditions are unclear. The objective of this study was to elucidate the impact of SAP on the physiological and biochemical characteristics, as well as the β-ODAP content, of grass pea under drought conditions.
Methods
We conducted potting experiments of natural drought with L. sativus cv. Wugong Yongshou (WGYS), L. sativus cv. Jingbian (JB), L. sativus cv. Aksu (AKS), and cultivated grass pea (ZP) materials with different SAP ratios (0.00%, 0.25%, 0.50%, 0.75%, 1.00%).
Results
The research confirmed that the addition of 0.50% SAP had a positive effect on soil physicochemical properties and growth parameters of grass pea, including plant height, leaf area, leaf water potential, seed yield, and straw yield per plant; Following an eight-day cessation of irrigation, the transpiration rate (E), stomatal conductance (GH2O), intercellular CO2 concentration (Ci), and net photosynthetic rate (A) of the four grass pea leaves exhibited a notable optimization in comparison to the control without SAP; The levels of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), malondialdehyde (MDA), and β-ODAP (leaves, seeds, and straw) of four grass pea plants treated with 0.50% SAP were significantly decreased.
Conclusion
SAP can improve soil water-holding capacity, leaf photosynthesis to alleviate oxidative damage caused by drought stress in grass pea, reduce β-ODAP content, and promote low-toxicity and high-yield planting.
期刊介绍：
The Journal of Soil Science and Plant Nutrition is an international, peer reviewed journal devoted to publishing original research findings in the areas of soil science, plant nutrition, agriculture and environmental science.
Soil sciences submissions may cover physics, chemistry, biology, microbiology, mineralogy, ecology, pedology, soil classification and amelioration.
Plant nutrition and agriculture submissions may include plant production, physiology and metabolism of plants, plant ecology, diversity and sustainability of agricultural systems, organic and inorganic fertilization in relation to their impact on yields, quality of plants and ecological systems, and agroecosystems studies.
Submissions covering soil degradation, environmental pollution, nature conservation, and environmental protection are also welcome.
The journal considers for publication original research articles, technical notes, short communication, and reviews (both voluntary and by invitation), and letters to the editor.
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