Long-term rice-rice-rape rotation optimizes 1,2-benzenediol concentration in rhizosphere soil and improves nitrogen-use efficiency and rice growth

Sheng Lu, Haixing Song, Chunyun Guan, Joe Eugene Lepo, Zhimin Wu, Xinhua He, Zhenhua Zhang

Research output: Contribution to journalArticle

Abstract

Aims: We examined differences in soil metabolites from the rice root rhizosphere of long-term rice-rice-fallow (RRF) and rice-rice-rape (RRR) rotations, and examined the effects of 1,2-benzenediol on nitrogen-use efficiency (NUE) and rice growth. Methods: The metabolite composition of rice rhizospheres was analyzed using the gas chromatography-mass spectrometry (GC-MS). A range of 0.2, 2.0 and 200 μmol L−1 concentrations of external 1,2-benzenediol were applied to examine their effects on rice growth, nitrate reductase (NR) and glutamine synthetase (GS) activities, and physiological nitrogen-use efficiency (PNUE). Results: The metabolite composition of rhizospheres differed significantly between RRR and RRF. Soil total N and 1,2-benzenediol concentrations during the early rice season were significantly lower under RRR than RRF. Rice growth and NUE significantly enhanced at 0.20 μmol 1,2-benzenediol L−1, but inhibited at 2.0 μmol L−1 or higher. Changes in root morphology and uptake associated with 1,2-benzenediol possibly had contributed to a higher NUE of the early season rice under RRR. The NR and GS activities in rice roots were significantly higher with 0.2 μmol L−1 1,2-benzenediol than without 1,2-benzenediol treatment. Conclusions: Crop rotation significantly affected rice rhizosphere metabolites. An optimal soil 1,2-benzenediol concentration under long-term RRR rotation may be associated with an enhanced NUE and root N uptake and assimilation, resulting in an increased rice growth and yield.

Original languageEnglish
JournalPlant and Soil
DOIs
Publication statusE-pub ahead of print - 11 Jul 2019

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nutrient use efficiency
rhizosphere
rice
nitrogen
soil
rape (plant)
metabolite
fallow
metabolites
glutamate-ammonia ligase
nitrate reductase

Cite this

@article{535f1f3ceb504de784ebf3eb30829e0f,
title = "Long-term rice-rice-rape rotation optimizes 1,2-benzenediol concentration in rhizosphere soil and improves nitrogen-use efficiency and rice growth",
abstract = "Aims: We examined differences in soil metabolites from the rice root rhizosphere of long-term rice-rice-fallow (RRF) and rice-rice-rape (RRR) rotations, and examined the effects of 1,2-benzenediol on nitrogen-use efficiency (NUE) and rice growth. Methods: The metabolite composition of rice rhizospheres was analyzed using the gas chromatography-mass spectrometry (GC-MS). A range of 0.2, 2.0 and 200 μmol L−1 concentrations of external 1,2-benzenediol were applied to examine their effects on rice growth, nitrate reductase (NR) and glutamine synthetase (GS) activities, and physiological nitrogen-use efficiency (PNUE). Results: The metabolite composition of rhizospheres differed significantly between RRR and RRF. Soil total N and 1,2-benzenediol concentrations during the early rice season were significantly lower under RRR than RRF. Rice growth and NUE significantly enhanced at 0.20 μmol 1,2-benzenediol L−1, but inhibited at 2.0 μmol L−1 or higher. Changes in root morphology and uptake associated with 1,2-benzenediol possibly had contributed to a higher NUE of the early season rice under RRR. The NR and GS activities in rice roots were significantly higher with 0.2 μmol L−1 1,2-benzenediol than without 1,2-benzenediol treatment. Conclusions: Crop rotation significantly affected rice rhizosphere metabolites. An optimal soil 1,2-benzenediol concentration under long-term RRR rotation may be associated with an enhanced NUE and root N uptake and assimilation, resulting in an increased rice growth and yield.",
keywords = "Allelochemical metabolite, Brassica napus, Glutamine synthetase, Nitrate reductase, Oryza sativa",
author = "Sheng Lu and Haixing Song and Chunyun Guan and Lepo, {Joe Eugene} and Zhimin Wu and Xinhua He and Zhenhua Zhang",
year = "2019",
month = "7",
day = "11",
doi = "10.1007/s11104-019-04177-9",
language = "English",
journal = "Plant and Soil: An International Journal on Plant-Soil Relationships",
issn = "0032-079X",
publisher = "Springer",

}

Long-term rice-rice-rape rotation optimizes 1,2-benzenediol concentration in rhizosphere soil and improves nitrogen-use efficiency and rice growth. / Lu, Sheng; Song, Haixing; Guan, Chunyun; Lepo, Joe Eugene; Wu, Zhimin; He, Xinhua; Zhang, Zhenhua.

In: Plant and Soil, 11.07.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Long-term rice-rice-rape rotation optimizes 1,2-benzenediol concentration in rhizosphere soil and improves nitrogen-use efficiency and rice growth

AU - Lu, Sheng

AU - Song, Haixing

AU - Guan, Chunyun

AU - Lepo, Joe Eugene

AU - Wu, Zhimin

AU - He, Xinhua

AU - Zhang, Zhenhua

PY - 2019/7/11

Y1 - 2019/7/11

N2 - Aims: We examined differences in soil metabolites from the rice root rhizosphere of long-term rice-rice-fallow (RRF) and rice-rice-rape (RRR) rotations, and examined the effects of 1,2-benzenediol on nitrogen-use efficiency (NUE) and rice growth. Methods: The metabolite composition of rice rhizospheres was analyzed using the gas chromatography-mass spectrometry (GC-MS). A range of 0.2, 2.0 and 200 μmol L−1 concentrations of external 1,2-benzenediol were applied to examine their effects on rice growth, nitrate reductase (NR) and glutamine synthetase (GS) activities, and physiological nitrogen-use efficiency (PNUE). Results: The metabolite composition of rhizospheres differed significantly between RRR and RRF. Soil total N and 1,2-benzenediol concentrations during the early rice season were significantly lower under RRR than RRF. Rice growth and NUE significantly enhanced at 0.20 μmol 1,2-benzenediol L−1, but inhibited at 2.0 μmol L−1 or higher. Changes in root morphology and uptake associated with 1,2-benzenediol possibly had contributed to a higher NUE of the early season rice under RRR. The NR and GS activities in rice roots were significantly higher with 0.2 μmol L−1 1,2-benzenediol than without 1,2-benzenediol treatment. Conclusions: Crop rotation significantly affected rice rhizosphere metabolites. An optimal soil 1,2-benzenediol concentration under long-term RRR rotation may be associated with an enhanced NUE and root N uptake and assimilation, resulting in an increased rice growth and yield.

AB - Aims: We examined differences in soil metabolites from the rice root rhizosphere of long-term rice-rice-fallow (RRF) and rice-rice-rape (RRR) rotations, and examined the effects of 1,2-benzenediol on nitrogen-use efficiency (NUE) and rice growth. Methods: The metabolite composition of rice rhizospheres was analyzed using the gas chromatography-mass spectrometry (GC-MS). A range of 0.2, 2.0 and 200 μmol L−1 concentrations of external 1,2-benzenediol were applied to examine their effects on rice growth, nitrate reductase (NR) and glutamine synthetase (GS) activities, and physiological nitrogen-use efficiency (PNUE). Results: The metabolite composition of rhizospheres differed significantly between RRR and RRF. Soil total N and 1,2-benzenediol concentrations during the early rice season were significantly lower under RRR than RRF. Rice growth and NUE significantly enhanced at 0.20 μmol 1,2-benzenediol L−1, but inhibited at 2.0 μmol L−1 or higher. Changes in root morphology and uptake associated with 1,2-benzenediol possibly had contributed to a higher NUE of the early season rice under RRR. The NR and GS activities in rice roots were significantly higher with 0.2 μmol L−1 1,2-benzenediol than without 1,2-benzenediol treatment. Conclusions: Crop rotation significantly affected rice rhizosphere metabolites. An optimal soil 1,2-benzenediol concentration under long-term RRR rotation may be associated with an enhanced NUE and root N uptake and assimilation, resulting in an increased rice growth and yield.

KW - Allelochemical metabolite

KW - Brassica napus

KW - Glutamine synthetase

KW - Nitrate reductase

KW - Oryza sativa

UR - http://www.scopus.com/inward/record.url?scp=85068874693&partnerID=8YFLogxK

U2 - 10.1007/s11104-019-04177-9

DO - 10.1007/s11104-019-04177-9

M3 - Article

JO - Plant and Soil: An International Journal on Plant-Soil Relationships

JF - Plant and Soil: An International Journal on Plant-Soil Relationships

SN - 0032-079X

ER -