Physiological characterization of recombinant inbred lines of barley with contrasting levels of carbon isotope discrimination

Jing, Chen; Chang, Scott X.; Anyia, Anthony O.

doi:10.1007/s11104-012-1578-8

Cited by 8 publications

(4 citation statements)

References 53 publications

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“…The WUE and WUEi of spring wheat were greater under WD than under WW (Table 2), consistent with results on cowpea (Anyia and Herzog 2004) and barley (Anyia et al 2007;Chen et al 2013). Under WD, gs and leaf Tr were markedly reduced but leaf Pn was slightly decreased and WUE increased.…”

Section: Water Use Efficiencysupporting

confidence: 87%

Mycorrhizal inoculation and nitrogen fertilization affect the physiology and growth of spring wheat under two contrasting water regimes

2015

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Aims Most plants benefit from mycorrhizal symbiosis through their improved abilities to take up nutrients and water. Information on the interactive effects of fungal inoculation, nitrogen (N) fertilization and drought on water use efficiency (WUE) and productivity of Canadian wheat varieties is scanty. Methods In this study, we investigated the effects of arbuscular mycorrhizal fungi (AMF) inoculation, N fertilization and water regime (well-watered (WW) vs water-deficit (WD)) on WUE, phosphorus (P) and N uptake and growth of spring wheat (Triticum aestivum var. Superb) in a greenhouse experiment. Results The specific leaf area (SLA) of flag leaves was significantly increased by AMF inoculation under the two water regimes but was lowered under N fertilization and drought conditions. The AMF inoculation significantly enhanced relative water content under WD. The WUE and instantaneous WUE (WUEi) were enhanced by N fertilization and AMF inoculation under both water regimes. Combined N fertilization and AMF inoculation significantly increased N concentrations in stem and grain, plant height, biomass and grain yield under WD. The P concentrations in stem and grain were increased under WD, irrespective of other treatments applied. The WUE and grain N, stem N, and P concentrations were positively correlated. Conclusions Plant physiological characteristics were negatively affected by WD, while N fertilization and AMF inoculation enhanced plant performance under WD, including the increase of N and P concentrations in different componments of spring wheat.

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Section: Water Use Efficiencysupporting

confidence: 87%

Mycorrhizal inoculation and nitrogen fertilization affect the physiology and growth of spring wheat under two contrasting water regimes

2015

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“…Plant water-use strategies revealed by seasonal variations in leaf d 13 C values It has been well documented that the increased plant WUE (leaf d 13 C values) was usually associated with the decreased moisture availability (Dawson and Ehleringer 1993;Cordell et al 1998;Sandquist and Ehleringer 2003;Bai et al 2008;Chen et al 2013), and the relationship between leaf d 13 C values and precipitation has been reported to be a negative correlation (Stewart et al 1995;Korol et al 1999;Leffler and Enquist 2002). However, the relationship is not always the same; there is a threshold amount of rainfall above which additional rainfall has little impact on leaf d 13 C values (Leffler and Enquist 2002).…”

Section: Discussionmentioning

confidence: 99%

Seasonal variations in leaf δ13C values: implications for different water-use strategies among species growing on continuous dolomite outcrops in subtropical China

2014

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Plant species growing in shallow-soil habitat are likely to experience water deficit especially in seasonally dry or arid regions. However, only scarce studies focused on their water-use strategies. The current study aimed to reveal water-use strategies of different species growing on continuous dolomite outcrops (a typical shallow-soil habitat) in subtropical China that relied on different water sources, and to investigate the differences between narrow endemic and widespread species, based on season variations in leaf d 13 C values. Leaf samples of six plant species (Radermachera sinica, Sapium rotundifolium, Sterculia euosma, Schefflera octophylla, Alchornea trewioides, and Vitex negundo, in different life-forms and leaf phenologies) were collected for carbon isotope measurements in the wet and dry seasons, respectively. Contrary to the expectation, the evergreen big shrub species, S. octophylla, which always relied on deep water sources, exhibited the most positive d 13 C values (high water-use efficiency, WUE), indicating more conservative water-use strategies. While the two deciduous small shrubs, A. trewioides and V. negundo, which always relied on shallow water sources, exhibited the most negative d 13 C values (low WUE). This result was associated with their short life spans, indicating an opportunistic water-use strategy. Leaf d 13 C values of almost all (except for S. octophylla) the selected species were significantly (P \ 0.05) higher in the dry season than in the wet season. This indicated that it was a common strategy for species in rocky karst habitat to improve their WUE in dry season. Despite the similar water sources utilized by the selected three tree species, the widespread one (R. sinica) exhibited greater improvement in leaf d 13 C values than the narrow endemic ones (S. rotundifolium and S. euosma). This suggested that the widespread tree species had more flexible water-use strategies. It was further speculated that broad spatial distribution of widespread species may contribute to their highly plastic responses to changes in environmental conditions rather than always maintaining high WUE.

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“…It has been suggested by some authors that δ 13 C or CID could be an effective selection criterion for grain yield under drought [3] [4]. In general, water stress increased δ 13 C and decreased CID values in rice [5]- [8] and other crops, such as wheat [4] [9], barley [10], chickpea [11] and soybean [12]. Genotypic variation has been reported for δ 13 C or CID values in rice; the genotypes for the japonica subspecies showed higher δ 13 C values or lower CID values than the indica genotypes did [13]- [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Various Intensities of Drought Stress on δ<sup>13</sup>C Variation among Plant Organs in Rice: Comparison of Two Cultivars

Kano‐Nakata¹,

Tatsumi²,

Inukai³

et al. 2014

AJPS

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The δ 13 C value is widely used to assess the effects of drought on water status in plants. However, there is little information regarding the δ 13 C signature in different organs of rice. We conducted a field study to examine whether the δ 13 C among different plant parts would be affected by the intensities of drought, and to evaluate genotypic variation in δ 13 C fluctuation among plant parts affected by drought intensities. Two cultivars, "Nipponbare" (Oryzasativa ssp. japonica) and "Kasalath" (O. sativa ssp. indica), were grown in the field with a line-source sprinkler system. The δ 13 C values of panicles, flag leaves, straws, culms, and roots were measured from plant samples. The δ 13 C value increased as drought stress increased, especially in the panicles and roots. "Nipponbare" showed higher values of δ 13 C than "Kasalath" under the well-watered and mild drought stress conditions, but there was no significant difference between the genotypes in the δ 13 C value under the severe drought stress condition. The variation in δ 13 C value among different plant parts was also increased with increasing drought stress. In contrast, these variations were small under well-watered conditions. Furthermore, there was much greater variation in the δ 13 C value among different plant parts in "Kasalath" than in "Nipponbare" when the plants were grown under drought stress conditions. A significant negative relationship was observed between the δ 13 C value of panicles and shoot dry matter production, suggesting that the δ 13 C value of panicles may be the best indicator of plant water status in rice.

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Physiological characterization of recombinant inbred lines of barley with contrasting levels of carbon isotope discrimination

Cited by 8 publications

References 53 publications

Mycorrhizal inoculation and nitrogen fertilization affect the physiology and growth of spring wheat under two contrasting water regimes

Mycorrhizal inoculation and nitrogen fertilization affect the physiology and growth of spring wheat under two contrasting water regimes

Seasonal variations in leaf δ13C values: implications for different water-use strategies among species growing on continuous dolomite outcrops in subtropical China

Effect of Various Intensities of Drought Stress on δ<sup>13</sup>C Variation among Plant Organs in Rice: Comparison of Two Cultivars

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Physiological characterization of recombinant inbred lines of barley with contrasting levels of carbon isotope discrimination

Cited by 8 publications

References 53 publications

Mycorrhizal inoculation and nitrogen fertilization affect the physiology and growth of spring wheat under two contrasting water regimes

Mycorrhizal inoculation and nitrogen fertilization affect the physiology and growth of spring wheat under two contrasting water regimes

Seasonal variations in leaf δ13C values: implications for different water-use strategies among species growing on continuous dolomite outcrops in subtropical China

Effect of Various Intensities of Drought Stress on δ&lt;sup&gt;13&lt;/sup&gt;C Variation among Plant Organs in Rice: Comparison of Two Cultivars

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Effect of Various Intensities of Drought Stress on δ<sup>13</sup>C Variation among Plant Organs in Rice: Comparison of Two Cultivars