Selenium-Induced Enhancement in Growth and Rhizosphere Soil Methane Oxidation of Prickly Pear

As an essential element for plants, animals, and humans, selenium (Se) has been shown to participate in microbial methane oxidation. We studied the growth response and rhizosphere methane oxidation of an economic crop (prickly pear, <i>Rosa roxburghii</i> Tratt) through three treatments...

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Main Authors: Yiming Wang, Xuechong Xie, Huijie Chen, Kai Zhang, Benliang Zhao, Rongliang Qiu
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/13/6/749
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author Yiming Wang
Xuechong Xie
Huijie Chen
Kai Zhang
Benliang Zhao
Rongliang Qiu
author_facet Yiming Wang
Xuechong Xie
Huijie Chen
Kai Zhang
Benliang Zhao
Rongliang Qiu
author_sort Yiming Wang
collection DOAJ
description As an essential element for plants, animals, and humans, selenium (Se) has been shown to participate in microbial methane oxidation. We studied the growth response and rhizosphere methane oxidation of an economic crop (prickly pear, <i>Rosa roxburghii</i> Tratt) through three treatments (Se0.6 mg/kg, Se2.0 mg/kg, and Se10 mg/kg) and a control (Se0 mg/kg) in a two-month pot experiment. The results showed that the height, total biomass, root biomass, and leaf biomass of prickly pear were significantly increased in the Se0.6 and Se2.0 treatments. The root-to-shoot ratio of prickly pear reached a maximum value in the Se2 treatment. The leaf carotenoid contents significantly increased in the three treatments. Antioxidant activities significantly increased in the Se0.6 and Se2 treatments. Low Se contents (0.6, 2 mg/kg) promoted root growth, including dry weight, length, surface area, volume, and root activity. There was a significant linear relationship between root and aboveground Se contents. The Se translocation factor increased as the soil Se content increased, ranging from 0.173 to 0.288. The application of Se can improve the state of rhizosphere soil’s organic C and soil nutrients (N, P, and K). Se significantly promoted the methane oxidation rate in rhizosphere soils, and the Se10 treatment showed the highest methane oxidation rate. The soil Se gradients led to differentiation in the growth, rhizosphere soil properties, and methane oxidation capacity of prickly pear. The root Se content and Se translocation factor were significantly positively correlated with the methane oxidation rate. Prickly pear can accumulate Se when grown in Se-enriched soil. The 2 mg/kg Se soil treatment enhanced growth and methane oxidation in the rhizosphere soil of prickly pear.
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spelling doaj.art-2b2177ee89b14b348528bb8d214ec5612024-03-27T14:00:32ZengMDPI AGPlants2223-77472024-03-0113674910.3390/plants13060749Selenium-Induced Enhancement in Growth and Rhizosphere Soil Methane Oxidation of Prickly PearYiming Wang0Xuechong Xie1Huijie Chen2Kai Zhang3Benliang Zhao4Rongliang Qiu5Guangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaAs an essential element for plants, animals, and humans, selenium (Se) has been shown to participate in microbial methane oxidation. We studied the growth response and rhizosphere methane oxidation of an economic crop (prickly pear, <i>Rosa roxburghii</i> Tratt) through three treatments (Se0.6 mg/kg, Se2.0 mg/kg, and Se10 mg/kg) and a control (Se0 mg/kg) in a two-month pot experiment. The results showed that the height, total biomass, root biomass, and leaf biomass of prickly pear were significantly increased in the Se0.6 and Se2.0 treatments. The root-to-shoot ratio of prickly pear reached a maximum value in the Se2 treatment. The leaf carotenoid contents significantly increased in the three treatments. Antioxidant activities significantly increased in the Se0.6 and Se2 treatments. Low Se contents (0.6, 2 mg/kg) promoted root growth, including dry weight, length, surface area, volume, and root activity. There was a significant linear relationship between root and aboveground Se contents. The Se translocation factor increased as the soil Se content increased, ranging from 0.173 to 0.288. The application of Se can improve the state of rhizosphere soil’s organic C and soil nutrients (N, P, and K). Se significantly promoted the methane oxidation rate in rhizosphere soils, and the Se10 treatment showed the highest methane oxidation rate. The soil Se gradients led to differentiation in the growth, rhizosphere soil properties, and methane oxidation capacity of prickly pear. The root Se content and Se translocation factor were significantly positively correlated with the methane oxidation rate. Prickly pear can accumulate Se when grown in Se-enriched soil. The 2 mg/kg Se soil treatment enhanced growth and methane oxidation in the rhizosphere soil of prickly pear.https://www.mdpi.com/2223-7747/13/6/749selenium<i>Roxburgh roxburghii</i>physiological responseselenium translocationmethane oxidation
spellingShingle Yiming Wang
Xuechong Xie
Huijie Chen
Kai Zhang
Benliang Zhao
Rongliang Qiu
Selenium-Induced Enhancement in Growth and Rhizosphere Soil Methane Oxidation of Prickly Pear
Plants
selenium
<i>Roxburgh roxburghii</i>
physiological response
selenium translocation
methane oxidation
title Selenium-Induced Enhancement in Growth and Rhizosphere Soil Methane Oxidation of Prickly Pear
title_full Selenium-Induced Enhancement in Growth and Rhizosphere Soil Methane Oxidation of Prickly Pear
title_fullStr Selenium-Induced Enhancement in Growth and Rhizosphere Soil Methane Oxidation of Prickly Pear
title_full_unstemmed Selenium-Induced Enhancement in Growth and Rhizosphere Soil Methane Oxidation of Prickly Pear
title_short Selenium-Induced Enhancement in Growth and Rhizosphere Soil Methane Oxidation of Prickly Pear
title_sort selenium induced enhancement in growth and rhizosphere soil methane oxidation of prickly pear
topic selenium
<i>Roxburgh roxburghii</i>
physiological response
selenium translocation
methane oxidation
url https://www.mdpi.com/2223-7747/13/6/749
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AT kaizhang seleniuminducedenhancementingrowthandrhizospheresoilmethaneoxidationofpricklypear
AT benliangzhao seleniuminducedenhancementingrowthandrhizospheresoilmethaneoxidationofpricklypear
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