Comparison of aluminum tolerance and phosphate absorption between rape (<i>Brassica napus</i>L.) and Tomato (<i>Lycopersicum esculentum</i>Mill.) in relation to organic acid exudation

Luo, Hui Ming; Shinano, Takuro; Tadano, Toshiaki

doi:10.1080/00380768.1999.10414339

Cited by 15 publications

(7 citation statements)

References 24 publications

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“…Second, the higher Al concentration resulting from soil acidification under the Al-P treatment might stimulate the release of organic acid anions and indirectly supplement the Al-P nutrition compared to the Fe-P treatment [31,32]. As has been reported previously [33][34][35], in the presence of external Al, Al-resistant species or genotypes exude a number of organic anions including citrate, malate, and oxalate, and the exudation of citrate might contribute to the detoxification of Al and to the increased phosphate availability in the rhizosphere in rapeseed [36].…”

Section: Figurementioning

confidence: 74%

Genotypic variation in phosphorus acquisition from sparingly soluble P sources is related to root morphology and root exudates in Brassica napus

Zhang

Huang

et al. 2011

Sci. China Life Sci.

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Genotypic variations in the adaptive response to low-phosphorus (P) stress and P-uptake efficiency have been widely reported in many crops. We conducted a pot experiment to evaluate the P-acquisition ability of two rapeseed (Brassica napus) genotypes supplied with two sparingly soluble sources of P, Al-P and Fe-P. Then, the root morphology, proton concentrations, and carboxylate content were investigated in a solution experiment to examine the genotypic difference in P-acquisition efficiency. Both genotypes produced greater biomass and accumulated more P when supplied with Al-P than when supplied with Fe-P. The P-efficient genotype 102 showed a significantly greater ability to deplete sparingly soluble P from the rhizosphere soil because of its greater biomass and higher P uptake compared with those of the P-inefficient genotype 105. In the solution experiment, the P-efficient genotype under low-P conditions developed dominant root morphological traits, and it showed more intensive rhizosphere acidification because of greater H + efflux, higher H + -ATPase activity, and greater exudation of carboxylates than the P-inefficient genotype. Thus, a combination of morphological and physiological mechanisms contributed to the genotypic variation in the utilization of different sparingly soluble P sources in B. napus.Brassica napus, sparingly soluble P, genotypic variation, root morphology, H + and carboxylate exudation Citation:Zhang H W, Huang Y, Ye X S, et al. Genotypic variation in phosphorus acquisition from sparingly soluble P sources is related to root morphology and root exudates in Brassica napus.

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Section: Figurementioning

confidence: 74%

Genotypic variation in phosphorus acquisition from sparingly soluble P sources is related to root morphology and root exudates in Brassica napus

Zhang

Huang

et al. 2011

Sci. China Life Sci.

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“…In the present study, B1 could solubilize the soil Occluded-P by secreting organic acid, thus leading to the increase of soil Olsen-available P. This consequence was agreed with by Shi and Wu (1998). Except Occluded-P, the soil Fe-P and Al-P also could be dissolved by organic acids (Jones & Darrah 1994;Dinkelaker et al 1995;Iyamuremye et al 1996;Luo et al 1999). The PSM strains have been studied for their phosphate-solubilizing activity and are often used as biofertilizers (Whitelaw et al 1999;Singh & Reddy 2011).…”

Section: Discussionmentioning

confidence: 98%

Inoculation of phosphate-solubilizing bacteriaBacillus thuringiensisB1 increases available phosphorus and growth of peanut in acidic soil

Wang

Liu

2014

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

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Phosphate-solubilizing microorganisms play an important role in plant nutrition by enhancing phosphorus (P) availability to roots through converting the insoluble phosphates into soluble ions. We isolated phosphatesolubilizing bacteria (PSB) from acidic soil (Ultisols) in the field from the layer of 0-150 mm at a tea garden located at 28°38′26″ N and 116°24′27″ E. The capacity of bacterial isolates to solubilize mineral phosphate was tested on aluminum phosphate (AlPO 4 ) in liquid medium. Among these PSB, isolate B1 (identified as Bacillus thuringiensis) exhibited the maximum P-solubilizing ability and was particularly efficient at solubilizing AlPO 4 (up to 321 mg L −1 ) in vitro. The isolate B1 was inoculated to an acidic soil to study its effect on phosphate solubilization and growth of peanuts (Arachis hypogeae). The Olsen-P in the tested soil increased from 14.7 to 23.4 mg kg −1 , with solubilization of 16.4 mg kg −1 soil of Occluded-P after 14-day incubation. The inoculation by B1 significantly increased plant height (from 37.7 to 45.7 cm), number of branches (from 34.0 to 52.7 per plant), hundred-seed weight (from 42.1 to 46.9 g) and crude protein content (from 243.5 to 268.2 g kg −1 dry weight). The phosphate-solubilizing B. thuringiensis strain B1 showed potential as a biological phosphorus fertilizer.

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“…Several experiments have shown that citric acid exudation is promoted by P depletion (Dinkelaker et al, 1989;Gardner et al, 1982;Gerke et al, 1994;Lipton et al, 1987;Ohwaki and Hirata, 1992), or iron depletion (Gerke et al, 1994). Specifi c environmental perturbations, such as aluminum toxicity, also induce organic acid exudation (Gerke et al, 1994;Ishikawa et al, 2000;Luo et al, 1999). Plant species differ in the organic acids exuded in response to environmental perturbation (Bhattacharyya et al, 2003;Ishikawa et al, 2000;Luo et al, 1999;Ohwaki and Hirata, 1992;Rengel, 1997).…”

mentioning

confidence: 99%

“…Specifi c environmental perturbations, such as aluminum toxicity, also induce organic acid exudation (Gerke et al, 1994;Ishikawa et al, 2000;Luo et al, 1999). Plant species differ in the organic acids exuded in response to environmental perturbation (Bhattacharyya et al, 2003;Ishikawa et al, 2000;Luo et al, 1999;Ohwaki and Hirata, 1992;Rengel, 1997). Differences in exudation between genotypes of Lupinus albus L. were only seen when plants were P defi cient (Egle et al, 2003;Lucus-Garcia et al, 2001).…”

mentioning

confidence: 99%

Nutrient Uptake among Subspecies of Cucurbita pepo L. Is Related to Exudation of Citric Acid

Gent¹,

Parrish²,

White³

2005

jashs

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ADDITIONAL INDEX WORDS. organic acid, phosphorus depletion, hydroponics, zucchini, summer squash ABSTRACT. Exudation of organic acids by roots has been implicated in uptake of minerals from soil. Three cultivars within each of two subspecies of summer squash (Cucurbita pepo ssp. ovifera D. S. Decker var. ovifera and C. pepo ssp. pepo var. pepo) were grown in the fi eld. Plants of ssp. pepo had higher concentrations of K, P, and Zn than those of ssp. ovifera. These same cultivars were grown under P suffi cient and depleted conditions in hydroponics, to measure exudation of organic acids from roots. When grown in hydroponics, tissues of ssp. ovifera had similar or higher concentrations of nutrients than ssp. pepo. Therefore, differences in tissue composition of fi eld-grown plants are likely due to differences in nutrient uptake ability, not inherent differences in tissue composition between subspecies. Phosphorus nutrition played a signifi cant role in exudation of organic acids into the hydroponics solution. For both subspecies, P depletion resulted in exudation of more citric and succinic acid, and less oxalic and tartaric acid. Under P depletion, ssp. pepo exuded more citric acid than ssp. ovifera. When soil was eluted with solution containing root exudates, the exudates from ssp. pepo eluted more K, Mg, Fe, and Zn than did those from ssp. ovifera. Among subspecies of C. pepo, exudation of organic acids, particularly exudation of citric acid in response to P depletion, is associated with the plantʼs ability to accumulate more inorganic nutrients when grown in the fi eld.

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Comparison of aluminum tolerance and phosphate absorption between rape (Brassica napusL.) and Tomato (Lycopersicum esculentumMill.) in relation to organic acid exudation

Cited by 15 publications

References 24 publications

Genotypic variation in phosphorus acquisition from sparingly soluble P sources is related to root morphology and root exudates in Brassica napus

Genotypic variation in phosphorus acquisition from sparingly soluble P sources is related to root morphology and root exudates in Brassica napus

Inoculation of phosphate-solubilizing bacteriaBacillus thuringiensisB1 increases available phosphorus and growth of peanut in acidic soil

Nutrient Uptake among Subspecies of Cucurbita pepo L. Is Related to Exudation of Citric Acid

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