IF 0.6

Plant Root Pub Date : 2023-01-01 DOI: 10.3117/plantroot.17.1

A. H. Umar, F. A. Zakry

引用次数: 0

Development of a method for high-throughput quantitation of soil-surface roots of rice (Oryza sativa) and wild rice (O. glumaepatula) using an overhead scanner 建立了一种利用架空扫描仪高通量定量水稻和野生稻土壤-表层根系的方法

IF 0.6

Plant Root Pub Date : 2023-01-01 DOI: 10.3117/plantroot.17.16

Tomoki Miyashita, K. Shiono

引用次数: 0

Strontium-induced mineral imbalance, cell death, and reactive oxygen species generation in Arabidopsis thaliana 拟南芥中锶诱导的矿物质失衡、细胞死亡和活性氧的产生

IF 0.6

Plant Root Pub Date : 2023-01-01 DOI: 10.3117/plantroot.17.36

Takeshi Nagata

引用次数: 0

Acidic soil tolerance of sugarcane and Erianthus root assessed by cell membrane stability 用细胞膜稳定性评价甘蔗和蕨根对酸性土壤的耐受性

IF 0.6

Plant Root Pub Date : 2023-01-01 DOI: 10.3117/plantroot.17.26

H. Takaragawa, H. Matsuda, Y. Terajima

引用次数: 0

Application of the pressure chamber method to evaluate root hydraulic conductance in rice plants with tillers 压力室法在水稻分蘖植株根系水力导度评价中的应用

Plant Root Pub Date : 2023-01-01 DOI: 10.3117/plantroot.17.59

Emi Kameoka, Shiro Mitsuya, Akira Yamauchi

{"title":"Application of the pressure chamber method to evaluate root hydraulic conductance in rice plants with tillers","authors":"Emi Kameoka, Shiro Mitsuya, Akira Yamauchi","doi":"10.3117/plantroot.17.59","DOIUrl":"https://doi.org/10.3117/plantroot.17.59","url":null,"abstract":"The root hydraulic conductance of rice is often measured using the pressure chamber method only for the main stem at the seedling stage, as it is difficult to evaluate at a more advanced growth stage with tillers due to the high risk of pressure leakage from the gaps between the tillers. The aim of this study was to identify techniques that are effective for prevention of air leakage and an improvement in the success rate of root hydraulic conductance measurements in rice plants with tillers. Using three rice (Oryza sativa L.) genotypes, FR13A (aus), KDML105 (indica), and Swarna (indica), the root hydraulic conductance of the main stem and four tillers were calculated using the pressure chamber method at 98, 104, and 95 days after sowing, respectively, using the following three techniques: 1) careful detachment of dry leaf sheaths, 2) ensuring spacing between tillers and an appropriate amount of silicone in the socket, and 3) pre-fixing the socket to prevent vertical misalignment. Using these three techniques, we achieved a success rate of 92.8% (13 of 14 plants) for root hydraulic conductance measurements in the genotypes. Additionally, we show that genotypic variation in root hydraulic conductance exists at the late vegetative stage, and that the growth stage can have a significant effect on root hydraulic conductance values. In conclusion, this study presents a detailed pressure chamber method for measuring root hydraulic conductance in rice plants with tillers, reducing the risk of pressure leakage, and improving the success rate of the measurement.","PeriodicalId":20205,"journal":{"name":"Plant Root","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135600382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genotypic variation in rice root system distribution and activity in response to short-term soil drought 短期土壤干旱对水稻根系分布和活力的影响

IF 0.6

Plant Root Pub Date : 2023-01-01 DOI: 10.3117/plantroot.17.45

Emi Kameoka, Shiro Mitsuya, R. Suralta, A. Yamauchi, A. Henry

引用次数: 1

Physiological, biochemical and root exudate response of maize seedlings to hydrogen sulfide applications 施用硫化氢对玉米幼苗生理生化及根系分泌物的影响

Plant Root Pub Date : 2023-01-01 DOI: 10.3117/plantroot.17.71

Kabir Ghoto, Gui-Feng Gao, Martin Simon, Zhi-Jun Shen, Huan Li, Ming-Yue Wei, Hai-Lei Zheng

{"title":"Physiological, biochemical and root exudate response of maize seedlings to hydrogen sulfide applications","authors":"Kabir Ghoto, Gui-Feng Gao, Martin Simon, Zhi-Jun Shen, Huan Li, Ming-Yue Wei, Hai-Lei Zheng","doi":"10.3117/plantroot.17.71","DOIUrl":"https://doi.org/10.3117/plantroot.17.71","url":null,"abstract":"The effects of hydrogen sulfide (H2S), released from the donor sodium hydrosulfide (NaHS), on maize seedlings grown hydroponically for 6 days were investigated. Plant biomass, malondialdehyde (MDA), hydrogen peroxide (H2O2), superoxide (O2•−) content, and root exudates (organic acids) were measured. Results showed that 100 and 200 µM NaHS is the most appropriate and suitable concentration for the growth and development of maize seedlings, without affecting the MDA and H2O2 contents but altering the O2•−. In addition, high concentrations of 500 and 1000 µM NaHS adversely affected these parameters compared with the control (CK). The pH of the root exudates declined under NaHS treatments. The organic acids in the root exudates, including fumaric, acetic, formic, and malic acids exhibited higher contents at 100 µM NaHS treatment, the lactic and citric acids were higher at both 100 and 200 µM NaHS. In contrast, oxalic acid was reduced at all NaHS concentrations compared with the CK. Low contents of all the organic acids analyzed were found under 500 and 1000 µM NaHS treatment. In conclusion, all the above parameters were affected by the application of NaHS, while higher NaHS concentration was toxic for maize seedlings.","PeriodicalId":20205,"journal":{"name":"Plant Root","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135600389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Root sampling method for aquaporin gene expression analysis in rice 水稻水通道蛋白基因表达分析的根样方法

IF 0.6

Plant Root Pub Date : 2022-01-01 DOI: 10.3117/plantroot.16.11

Yumika Watanabe, Shiro Mitsuya, A. Yamauchi

引用次数: 0

Polymorphism of HvDRO1 and HvqSOR1 associated with root growth angle in barley accessions 大麦种质中与根生长角相关的HvDRO1和HvqSOR1多态性

IF 0.6

Plant Root Pub Date : 2022-01-01 DOI: 10.3117/plantroot.16.1

Y. Nakano, Junpei Konishi, Hirotake Ito, Tsuyoshi Tanaka, M. Seki, H. Aoki, T. Nagamine

{"title":"Polymorphism of HvDRO1 and HvqSOR1 associated with root growth angle in barley accessions","authors":"Y. Nakano, Junpei Konishi, Hirotake Ito, Tsuyoshi Tanaka, M. Seki, H. Aoki, T. Nagamine","doi":"10.3117/plantroot.16.1","DOIUrl":"https://doi.org/10.3117/plantroot.16.1","url":null,"abstract":": The root growth angle (RGA) is an important breeding target that confers high crop adaptability to deleterious environments. In barley, natural variations in RGA among accessions have been observed, but many of the genetic factors that cause of this variation remains unclear. In this study, we explored the orthologs of OsDRO1 ( DEEPER ROOTING 1 ) and OsqSOR1 (quantitative trait locus for SOIL SURFACE ROOTING 1) , which play a critical role in RGA regulation in rice, from barley genome and analyzed the polymorphisms of these genes among barley accessions. BLASTP search detected putative orthologs of OsDRO1 and OsqSOR1 in barley (HvDRO1 and HvqSOR1) with more than 60% amino acid similarity. Sequence analysis identified SNPs causing mis-splicing and nonsynonymous amino acid substitution in HvDRO1 and HvqSOR1 , respectively. These SNPs were associated with RGA variation among the 47 barley accessions. Phylogenetic analysis using the 105 barley accessions revealed that the alleles of HvDRO1 and HvqSOR1 are related to the genetic background of the accessions. Further-more, the mutant allele of HvDRO1 is mainly shared in the Hokuriku/Nagano subpopulation, suggesting that the mutant allele is involved in local adaptation of barley cultivars to the soil environment of the region. Our findings suggest that the polymorphisms of HvDRO1 and HvqSOR1 are possible determinants of RGA variation in barley, at least in Japanese accessions, and provide information on allelic variants of the genes for marker-assisted selection to genetic improvement of RGA of barley.","PeriodicalId":20205,"journal":{"name":"Plant Root","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69621664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Characterization of root traits for phosphorus deficiency tolerance using chromosome segment substitution lines 利用染色体片段代换系研究耐磷根系性状

IF 0.6

Plant Root Pub Date : 2022-01-01 DOI: 10.3117/plantroot.16.21

Yuki Akamatsu, R. Tajima, T. Uno, Toyoaki Ito, M. Nishida, M. Saito

引用次数: 0

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