The expression of several cell wall-related genes in Arabidopsis roots is down-regulated under boron deficiency

Camacho-Cristóbal, Juan J.; Herrera-Rodríguez, María Begoña; Beato, Víctor Manuel; Rexach, Jesús; Navarro-Gochicoa, M. Teresa; Maldonado, José; González-Fontes, Agustı́n

doi:10.1016/j.envexpbot.2007.12.004

Cited by 87 publications

(47 citation statements)

References 49 publications

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“…In contrast to B deWciency, little is known of whether the RG-II complex is involved in the B toxicity syndrome. There has been a report demonstrating that genes encodings expansins are down-regulated by B deprivation in Arabidopsis roots (Camacho-Cristóbal et al 2008). In contrast to B deWciency, we found that there were increases in the transcripts of CsExp1 and CsExp2 on exposure of cucumber seedlings to high B concentration.…”

Section: Discussioncontrasting

confidence: 61%

Boron toxicity is alleviated by hydrogen sulfide in cucumber (Cucumis sativus L.) seedlings

Wang

Shi

et al. 2010

Planta

159

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Boron (B) is an essential micronutrient for plants, which when occurs in excess in the growth medium, becomes toxic to plants. Rapid inhibition of root elongation is one of the most distinct symptoms of B toxicity. Hydrogen sulfide (H(2)S) is emerging as a potential messenger molecule involved in modulation of physiological processes in plants. In the present study, we investigated the role of H(2)S in B toxicity in cucumber (Cucumis sativus) seedlings. Root elongation was significantly inhibited by exposure of cucumber seedlings to solutions containing 5 mM B. The inhibitory effect of B on root elongation was substantially alleviated by treatment with H(2)S donor sodium hydrosulfide (NaHS). There was an increase in the activity of pectin methylesterase (PME) and up-regulated expression of genes encoding PME (CsPME) and expansin (CsExp) on exposure to high B concentration. The increase in PME activity and up-regulation of expression of CsPME and CsExp induced by high B concentration were markedly reduced in the presence of H(2)S donor. There was a rapid increase in soluble B concentrations in roots on exposure to high concentration B solutions. Treatment with H(2)S donor led to a transient reduction in soluble B concentration in roots such that no differences in soluble B concentrations in roots in the absence and presence of NaHS were found after 8 h exposure to the high concentration B solutions. These findings suggest that increases in activities of PME and expansin may underlie the inhibition of root elongation by toxic B, and that H(2)S plays an ameliorative role in protection of plants from B toxicity by counteracting B-induced up-regulation of cell wall-associated proteins of PME and expansins.

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Section: Discussioncontrasting

confidence: 61%

Boron toxicity is alleviated by hydrogen sulfide in cucumber (Cucumis sativus L.) seedlings

Wang

Shi

et al. 2010

Planta

159

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“…Thus B was considered as the most likely main effect factor. Ca and B are two nutrients involved in the structural components of plant cell walls, and the boron could directly or indirectly impact the expression levels of genes related to the cell wall (Camacho-Cristóbal et al, 2008), contributing to texture characteristics by dietary fiber (Waldron et al, 2003;Van Buggenhout et al, 2009). We demonstrated that fruit pulp IDF content was significantly related to fruit pulp B content, while Dong et al (2009) indicated that pre-harvest foliar application of B alone significantly increased contents of B and IDF in 'Cara Cara' navel orange fruit pulp.…”

Section: Discussionmentioning

confidence: 99%

Soil application of calcium and magnesium fertilizer influences the fruit pulp mastication characteristics of Nanfeng tangerine (Citrus reticulata Blanco cv. Kinokuni)

Zheng

Lan

Tan

et al. 2015

Scientia Horticulturae

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“…However, several genes have been found to be regulated by B levels, suggesting that plants possess mechanisms to sense, respond to, and maintain B homeostasis, either directly or indirectly (Kobayashi et al, 2004;Takano et al, 2006;Camacho-Cristóbal et al, 2008;Ozhuner et al, 2013;Abreu et al, 2014). Most notable, however, is the fact that B is proposed to play an important role in organisms lacking cell walls such as zebra fish and mice, suggesting that there are other functions for B that remain unresolved (Lanoue et al, 1998;Bennett et al, 1999;Rowe and Eckhert, 1999).…”

Section: Introductionmentioning

confidence: 99%

Transport of Boron by thetassel-less1Aquaporin Is Critical for Vegetative and Reproductive Development in Maize

et al. 2014

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The element boron (B) is an essential plant micronutrient, and B deficiency results in significant crop losses worldwide. The maize (Zea mays) tassel-less1 (tls1) mutant has defects in vegetative and inflorescence development, comparable to the effects of B deficiency. Positional cloning revealed that tls1 encodes a protein in the aquaporin family co-orthologous to known B channel proteins in other species. Transport assays show that the TLS1 protein facilitates the movement of B and water into Xenopus laevis oocytes. B content is reduced in tls1 mutants, and application of B rescues the mutant phenotype, indicating that the TLS1 protein facilitates the movement of B in planta. B is required to cross-link the pectic polysaccharide rhamnogalacturonan II (RG-II) in the cell wall, and the percentage of RG-II dimers is reduced in tls1 inflorescences, indicating that the defects may result from altered cell wall properties. Plants heterozygous for both tls1 and rotten ear (rte), the proposed B efflux transporter, exhibit a dosage-dependent defect in inflorescence development under B-limited conditions, indicating that both TLS1 and RTE function in the same biological processes. Together, our data provide evidence that TLS1 is a B transport facilitator in maize, highlighting the importance of B homeostasis in meristem function.

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The expression of several cell wall-related genes in Arabidopsis roots is down-regulated under boron deficiency

Cited by 87 publications

References 49 publications

Boron toxicity is alleviated by hydrogen sulfide in cucumber (Cucumis sativus L.) seedlings

Boron toxicity is alleviated by hydrogen sulfide in cucumber (Cucumis sativus L.) seedlings

Soil application of calcium and magnesium fertilizer influences the fruit pulp mastication characteristics of Nanfeng tangerine (Citrus reticulata Blanco cv. Kinokuni)

Transport of Boron by thetassel-less1Aquaporin Is Critical for Vegetative and Reproductive Development in Maize

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