Enhancement of Nutrient, Trace Element, and Organic Selenium Contents of Ratooning Rice Grains and Straw Through Foliar Application of Selenite

Selenium (Se) is an essential trace element that has various beneficial effects for human healthy. However, the effects of different Se forms and concentrations on growth and development, photosynthetic characteristics and antioxidant capacity are still unclear with regard to the dual grain-and-feed...

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Main Authors: Wenjiang Wu, Deqiang Qi, Yalong Chen, Jiaqi Wang, Qinghua Wang, Yanjun Yang, Hongbin Niu, Quanzhi Zhao, Ting Peng
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Foods
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Online Access:https://www.mdpi.com/2304-8158/13/22/3637
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author Wenjiang Wu
Deqiang Qi
Yalong Chen
Jiaqi Wang
Qinghua Wang
Yanjun Yang
Hongbin Niu
Quanzhi Zhao
Ting Peng
author_facet Wenjiang Wu
Deqiang Qi
Yalong Chen
Jiaqi Wang
Qinghua Wang
Yanjun Yang
Hongbin Niu
Quanzhi Zhao
Ting Peng
author_sort Wenjiang Wu
collection DOAJ
description Selenium (Se) is an essential trace element that has various beneficial effects for human healthy. However, the effects of different Se forms and concentrations on growth and development, photosynthetic characteristics and antioxidant capacity are still unclear with regard to the dual grain-and-feed dual-use of ratoon rice (RR). In this study, three concentrations of three different Se forms were applied to RR using the foliar spraying method, and the results showed that Se treatment can increase the Se content of rice grain and straw. All the Se treatments improved the photosynthetic indexes and activities of antioxidant enzymes. The Se and trace elements contents, and the percentages of organic Se and protein Se of brown rice were found to be similar in all three Se forms. A higher organic Se content was found in the grain by spraying sodium selenite and Se-Met, in which the resistant starch (RS) content was increased with the increase in amylose content in grains. The main Se species in the grain was SeMet and the SeMeCys was found only with SeMet treatments. The grain quality showed that all three Se forms increased the consistency of gelatinization. Our study indicated that exogenous Se could improve the nutritional quality of both grain and straw by improving photosynthetic traits and antioxidant enzyme activities, especially sodium selenite and Se-Met. These results underscore the potential of foliar biofortification to enhance the functional component contents of RR grains and provide an insight into the Se enrichment of ratoon rice.
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spelling doaj-art-d8d287d845c449e396c0fcd86c8cb10e2025-08-20T02:04:52ZengMDPI AGFoods2304-81582024-11-011322363710.3390/foods13223637Enhancement of Nutrient, Trace Element, and Organic Selenium Contents of Ratooning Rice Grains and Straw Through Foliar Application of SeleniteWenjiang Wu0Deqiang Qi1Yalong Chen2Jiaqi Wang3Qinghua Wang4Yanjun Yang5Hongbin Niu6Quanzhi Zhao7Ting Peng8Innovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou 450046, ChinaInnovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou 450046, ChinaInnovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou 450046, ChinaInnovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou 450046, ChinaForestry and Fruit Research Institute, Beijing Academy of Agricultural Sciences, Beijing 100089, ChinaFruit Tree Research Institute, Shanxi Agricultural University, Taiyuan 030031, ChinaCollege of Agronomy, Henan Agricultural University, Zhengzhou 450046, ChinaInnovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou 450046, ChinaInnovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou 450046, ChinaSelenium (Se) is an essential trace element that has various beneficial effects for human healthy. However, the effects of different Se forms and concentrations on growth and development, photosynthetic characteristics and antioxidant capacity are still unclear with regard to the dual grain-and-feed dual-use of ratoon rice (RR). In this study, three concentrations of three different Se forms were applied to RR using the foliar spraying method, and the results showed that Se treatment can increase the Se content of rice grain and straw. All the Se treatments improved the photosynthetic indexes and activities of antioxidant enzymes. The Se and trace elements contents, and the percentages of organic Se and protein Se of brown rice were found to be similar in all three Se forms. A higher organic Se content was found in the grain by spraying sodium selenite and Se-Met, in which the resistant starch (RS) content was increased with the increase in amylose content in grains. The main Se species in the grain was SeMet and the SeMeCys was found only with SeMet treatments. The grain quality showed that all three Se forms increased the consistency of gelatinization. Our study indicated that exogenous Se could improve the nutritional quality of both grain and straw by improving photosynthetic traits and antioxidant enzyme activities, especially sodium selenite and Se-Met. These results underscore the potential of foliar biofortification to enhance the functional component contents of RR grains and provide an insight into the Se enrichment of ratoon rice.https://www.mdpi.com/2304-8158/13/22/3637RRbiofortificationselenitefunctional component contentnutritional quality
spellingShingle Wenjiang Wu
Deqiang Qi
Yalong Chen
Jiaqi Wang
Qinghua Wang
Yanjun Yang
Hongbin Niu
Quanzhi Zhao
Ting Peng
Enhancement of Nutrient, Trace Element, and Organic Selenium Contents of Ratooning Rice Grains and Straw Through Foliar Application of Selenite
Foods
RR
biofortification
selenite
functional component content
nutritional quality
title Enhancement of Nutrient, Trace Element, and Organic Selenium Contents of Ratooning Rice Grains and Straw Through Foliar Application of Selenite
title_full Enhancement of Nutrient, Trace Element, and Organic Selenium Contents of Ratooning Rice Grains and Straw Through Foliar Application of Selenite
title_fullStr Enhancement of Nutrient, Trace Element, and Organic Selenium Contents of Ratooning Rice Grains and Straw Through Foliar Application of Selenite
title_full_unstemmed Enhancement of Nutrient, Trace Element, and Organic Selenium Contents of Ratooning Rice Grains and Straw Through Foliar Application of Selenite
title_short Enhancement of Nutrient, Trace Element, and Organic Selenium Contents of Ratooning Rice Grains and Straw Through Foliar Application of Selenite
title_sort enhancement of nutrient trace element and organic selenium contents of ratooning rice grains and straw through foliar application of selenite
topic RR
biofortification
selenite
functional component content
nutritional quality
url https://www.mdpi.com/2304-8158/13/22/3637
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