Dry Matter Remobilization and Compensatory Effects in Various Internodes of Spring Wheat under Water Stress

Ma, Jian; Huang, Gaoxiang; Yang, Deok‐Chun; Chai, Qiang

doi:10.2135/cropsci2013.03.0141

Cited by 45 publications

(32 citation statements)

References 37 publications

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“…6). According to Ma et al (2014) dry matter reserved in the wheat stem contributed about 40 % to the grain yield under severe water stress and lost yields were partly compensated by dry matter remobilization.…”

Section: Production and Remobilization Of Fructan And Their Possible mentioning

confidence: 99%

Wheat stem reserves and salinity tolerance: molecular dissection of fructan biosynthesis and remobilization to grains

Sharbatkhari

Shobbar

Galeshi

et al. 2016

Planta

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Fructan accumulation and remobilization to grains under salinity can decrease dependency of the wheat tolerant cultivar on current photosynthesis and protect it from severe yield loss under salt stress. Tolerance of plants to abiotic stresses can be enhanced by accumulation of soluble sugars, such as fructan. The current research sheds light on the role of stem fructan remobilization on yield of bread wheat under salt stress conditions. Fructan accumulation and remobilization as well as relative expression of the major genes of fructan metabolism were investigated in the penultimate internodes of 'Bam' as the salt-tolerant and 'Ghods' as the salt-sensitive wheat cultivars under salt-stressed and controlled conditions and their correlations were analyzed. More fructan production and higher efficiency of fructan remobilization was detected in Bam cultivar under salinity. Up-regulation of sucrose: sucrose 1-fructosyltransferase (1-SST) and sucrose: fructan 6-fructosyltransferase (6-SFT) (fructan biosynthesis genes) at anthesis and up-regulation of fructan exohydrolase (1-FEH) and vacuolar invertase (IVR) genes (contributed to fructan metabolism) during grain filling stage and higher expression of sucrose transporter gene (SUT1) in Bam was in accordance with its induced fructan accumulation and remobilization under salt stress. A significant correlation was observed between weight density, WSCs and gene expression changes under salt stress. Based on the these results, increased fructan production and induced stem reserves remobilization under salinity can decrease dependency of the wheat tolerant cultivar on current photosynthesis and protect it from severe yield loss under salt stress conditions.

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Section: Production and Remobilization Of Fructan And Their Possible mentioning

confidence: 99%

Wheat stem reserves and salinity tolerance: molecular dissection of fructan biosynthesis and remobilization to grains

Sharbatkhari

Shobbar

Galeshi

et al. 2016

Planta

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“…As plant morphological is known that, during the vegetative phase, reduction in water availability led to a decrease in leaf area, and its remobilization of nutrition in sink (Ma, Huang, Yang, & Chai, 2013), in number of leaves per plant, and also in leaf age until autumn (Anjum, Xie, & Wang, 2011). It is caused by reducing production due to delays in the process of photosynthesis assimilate because of the lack of water, so these impact on the reduction of the volume and size of organs in plants.…”

Section: Introductionmentioning

confidence: 99%

“…Increased grain filling rate occurs during drought stress conditions. However, it resulted a decrease in crop yields and caused disruption of assimilate into the grain filling process (Ma, Huang, Yang, & Chai, 2013). However, in order to adapt to the gripped condition, the plant is known to have a physiological response by producing certain compounds to reduce the impact of non-availability of water, such as a decreasein the content of proline.…”

Section: Introductionmentioning

confidence: 99%

PROLINE AND SPECIFIC ROOT LENGHT AS RESPONSE TO DROUGHT OF WHEAT LINES (Triticum aestivum L.)

Barunawati

Maghfoer²,

Kendarini³

et al. 2016

Agrivita.J.Agr.Sci

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The national wheat imported reaches approx.-imately 7 million ton per year, recently. The wheat plantation in Indonesia is strongly affected by the high temperature which triggers the stunned roots. Thus the plan wheat growth and production reduced. The experiment to investigate of selectedlocal wheat lines which were already established in Indonesia and resistant to drought effect. The level of drought influence on several growth parameters of vegetative plant and thus affected to seeds production as well as on total yield. The results show that the introduced-variety of wheat line, SO3 shows the significant tolerant to drought and able to maintain the SRL (specific root length) and increase the proline contents to with stand the drought condition compare to other lines (M7 and M8). The proline as amino acid climbed extremely effected by drought, in contrast the root growth in particular their length reduced. Those plant conditions influence the plant vegetative growth and generative phases, especially for seed production. Additionally, the M8 and SO3 selected-line presents the stability on yield production compare to other varieties, since it able maintain the content of proline and ratio of root length. Therefore, those selected lines are appropriate to grow in Indonesia which produces at approximately 3.5 t ha -1 .

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“…However, there is also an inconsistent correlation between high stem WSC and grain yield, indicating that the key components of FEH-mediated WSC remobilization related to yield are not yet sufficiently defined (U z ık & Zofajov a, 2006;Dreccer et al, 2009). The stem WSC remobilization clearly differs between genotypes (Evans & Wardlaw, 1996;Ehdaie et al, 2006;Ruuska et al, 2006;Ma et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

A wheat 1‐FEH w3 variant underlies enzyme activity for stem WSC remobilization to grain under drought

Zhang

Chen

et al. 2014

New Phytologist

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In wheat stems, the levels of fructan-dominated water-soluble carbohydrates (WSC) do not always correlate well with grain yield. Field drought experiments were carried out to further explain this lack of correlation. Wheat (Triticum aestivum) varieties, Westonia, Kauz and c. 20 genetically diverse double haploid (DH) lines derived from them were investigated. Substantial genotypic differences in fructan remobilization were found and the 1-FEH w3 gene was shown to be the major contributor in the stem fructan remobilization process based on enzyme activity and gene expression results. A single nucleotide polymorphism (SNP) was detected in an auxin response element in the 1-FEH w3 promoter region, therefore we speculated that the mutated Westonia allele might affect gene expression and enzyme activity levels. A cleaved amplified polymorphic (CAP) marker was generated from the SNP. The harvested results showed that the mutated Westonia 1-FEH w3 allele was associated with a higher thousand grain weight (TGW) under drought conditions in 2011 and 2012. These results indicated that higher gene expression of 1-FEH w3 and 1-FEH w3 mediated enzyme activities that favoured stem WSC remobilization to the grains. The CAP marker residing in the 1-FEH w3 promoter region may facilitate wheat breeding by selecting lines with high stem fructan remobilization capacity under terminal drought.

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Dry Matter Remobilization and Compensatory Effects in Various Internodes of Spring Wheat under Water Stress

Cited by 45 publications

References 37 publications

Wheat stem reserves and salinity tolerance: molecular dissection of fructan biosynthesis and remobilization to grains

Wheat stem reserves and salinity tolerance: molecular dissection of fructan biosynthesis and remobilization to grains

PROLINE AND SPECIFIC ROOT LENGHT AS RESPONSE TO DROUGHT OF WHEAT LINES (Triticum aestivum L.)

A wheat 1‐FEH w3 variant underlies enzyme activity for stem WSC remobilization to grain under drought

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