Light restored root growth of Arabidopsis with constitutive ethylene response

Hu, Yibing; Chang, Chiung Chih; Xu, Guohua; Wang, Tai

doi:10.1007/s11738-010-0587-6

Cited by 5 publications

(4 citation statements)

References 36 publications

(47 reference statements)

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“…The glycine-induced phenotype in our work is consistent with the results observed in ethylene studies: cell elongation inhibition, stimulation in radial expansion, and root hair elongation (Hu et al, 2011;Leblanc et al, 2008;Strader et al, 2010). It is known that ethylene controls root cell expansion through auxin (Strader et al, 2010) by inhibiting plasma membrane H + -ATPase activity (Staal et al, 2011).…”

Section: Methodssupporting

confidence: 90%

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A Novel Effect for Glycine on Root System Growth of Habanero Pepper

Domínguez-May¹,

Carrillo-Pech²,

Barredo-Pool³

et al. 2013

J. Amer. Soc. Hort. Sci.

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Amino acids, a major fraction of the low-molecular-weight organic nitrogen in soil, act as signaling molecules that indicate the presence of nutrient-rich patches to the roots. To characterize the effects of amino acids on root growth, we used seedlings of habanero pepper (Capsicum chinense), one of the most widely cultivated annual spice crops in the world. We tested the effect of L-glutamate, L-aspartate, and glycine on the primary root of seedlings grown aseptically under different conditions of pH and light. L-glutamate and L-aspartate did not inhibit the root growth of habanero pepper. In contrast, glycine inhibited the growth of roots, stimulated root hair growth, and induced a significant accumulation of starch grains in the root apex. The use of aminoethoxyvinylglycine, an inhibitor of ethylene biosynthesis, and the evaluation of 1-aminocyclopropane-1-carboxylic acid oxidase expression provided evidence of a role for ethylene in the root responses to glycine. We suggest that these changes in the root apex in response to exogenous glycine could be an important adaptive response that allows plants to efficiently access the fluctuating availability of nutrients in the soil.

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Section: Methodssupporting

confidence: 90%

“…pH and light conditions play an important role in the plant response to signals (Brenner et al, 2000;Hu et al, 2011;Thornton, 2001). The habanero pepper is typically grown in soil at pH 7.5 in the Yucatán (Borges-Gómez et al, 2008).…”

Section: Methodsmentioning

confidence: 99%

A Novel Effect for Glycine on Root System Growth of Habanero Pepper

Domínguez-May¹,

Carrillo-Pech²,

Barredo-Pool³

et al. 2013

J. Amer. Soc. Hort. Sci.

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show abstract

“…In addition, ethylene stimulates auxin biosynthesis and basipetal auxin transport toward the root elongation zone, where it activates a local auxin response, leading to inhibition of cell elongation [15,17]. A recent study reported that light restores the suppressed root growth of OsERF1 transgenic Arabidopsis plants showing constitutive ethylene response [38]. However, our results indicated that the inhibition on root growth of GhERF12 transgenic plants seems to be not restorable by light irradiation (Figure 4), suggesting that the role of GhERF12 in ethylene response may be slightly deferent from that of OsERF1.…”

Section: Discussionmentioning

confidence: 99%

Overexpression of a Cotton Gene That Encodes a Putative Transcription Factor of AP2/EREBP Family in Arabidopsis Affects Growth and Development of Transgenic Plants

Zhou

Xia

et al. 2013

PLoS ONE

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In the study, a gene encoding a putative ethylene response factor of AP2/EREBP family was isolated from cotton (Gossypium hirsutum) and designated as GhERF12. Sequence alignment showed that GhERF12 protein contains a central AP2/ERF domain (58 amino acids) with two functional conserved amino acid residues (ala14 and asp19). Transactivation assay indicated that GhERF12 displayed strong transcription activation activity in yeast cells, suggesting that this protein may be a transcriptional activator in cotton. Quantitative RT-PCR analysis showed that GhERF12 expression in cotton was induced by ACC and IAA. Overexpression of GhERF12 in Arabidopsis affected seedling growth and development. The GhERF12 transgenic plants grew slowly, and displayed a dwarf phenotype. The mean bolting time of the transgenic plants was delayed for about 10 days, compared with that of wild type. Further study revealed that some ethylene-related and auxin-related genes were dramatically up-regulated in the transgenic plants, compared with those of wild type. Collectively, we speculated that GhERF12, as a transcription factor, may be involved in regulation of plant growth and development by activating the constitutive ethylene response likely related to auxin biosynthesis and/or signaling.

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“…OsRMC , a plasma membrane protein of DUF26 signal peptide, participates in JA signal transduction, mediates rice root development, and negatively regulates root curling [ 24 ]. Ethylene can promote auxin synthesis and regulate plant root cell elongation [ 25 , 26 ]. However, it remains unclear whether ethylene regulates root development through auxin accumulation and transport in rice.…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Association Study Reveals Candidate Genes for Root-Related Traits in Rice

Xiang

Zhang

Wang

et al. 2022

CIMB

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Root architecture is a determinant factor of drought resistance in rice and plays essential roles in the absorption of water and nutrients for the survival of rice plants. Dissection of the genetic basis for root structure can help to improve stress-resistance and grain yield in rice breeding. In this study, a total of 391 rice (Oryz asativa L.) accessions were used to perform a genome-wide association study (GWAS) on three root-related traits in rice, including main root length (MRL), average root length (ARL), and total root number (TRN). As a result, 13 quantitative trait loci (QTLs) (qMRL1.1, qMRL1.2, qMRL3.1, qMRL3.2, qMRL3.3, qMRL4.1, qMRL7.1, qMRL8.1, qARL1.1, qARL9.1, qTRN9.1, qTRN9.2, and qTRN11.1) significantly associated with the three traits were identified, among which three (qMRL3.2, qMRL4.1 and qMRL8.1) were overlapped with OsGNOM1, OsARF12 and qRL8.1, respectively, and ten were novel QTLs. Moreover, we also detected epistatic interactions affecting root-related traits and identified 19 related genetic interactions. These results lay a foundation for cloning the corresponding genes for rice root structure, as well as provide important genomic resources for breeding high yield rice varieties.

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Light restored root growth of Arabidopsis with constitutive ethylene response

Cited by 5 publications

References 36 publications

A Novel Effect for Glycine on Root System Growth of Habanero Pepper

A Novel Effect for Glycine on Root System Growth of Habanero Pepper

Overexpression of a Cotton Gene That Encodes a Putative Transcription Factor of AP2/EREBP Family in Arabidopsis Affects Growth and Development of Transgenic Plants

Genome-Wide Association Study Reveals Candidate Genes for Root-Related Traits in Rice

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