Differential Transcript Expression of Wall-loosening Candidates in Leaves of Maize Cultivars Differing in Salt Resistance

Geilfus, Christoph‐Martin; Zörb, Christian; Neuhaus, Christina; Hansen, Tim; Lüthen, Hartwig; Mühling, Karl H.

doi:10.1007/s00344-011-9201-4

Cited by 35 publications

(27 citation statements)

References 39 publications

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“…Another identified protein whose expression decreased in triticale roots under moderate osmotic stress was endoglucanase 10, which is capable of degradation of cell wall components and thus involved in cell elongation (Biswas et al 2006;Geilfus et al 2011). Studies performed on maize showed that the decrease of cellulases in the leaves may be associated with a lower tolerance to salt stress and inhibition of plant growth (Geilfus et al 2011).…”

Section: Discussionmentioning

confidence: 99%

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Changes in the root proteome of Triticosecale grains germinating under osmotic stress

2013

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Osmotic stress causes many adverse symptoms in plants, which include, for example, growth limitation and decrease or even absence of yield. Proteomic analyses of plant responses to stressors could lead to the introduction of crops with high resistance to osmotic stress. Such plants would be characterized by high yield even under unfavorable environmental conditions. In this article we describe changes in the protein profiles occurring in response to mild and moderate osmotic stress in triticale roots. Analysis of the protein profiles of these roots showed an increased abundance of 14 and a decreased abundance of 11 proteins under mild osmotic stress conditions while a moderate osmotic stress caused an increased abundance of 18 and a decreased abundance of 33 proteins. Twenty-five proteins, whose quantity altered under stress were identified using MALDI-TOF mass spectrometry. The identified proteins were classified into the categories of proteins associated with: defense mechanisms, metabolism, transcription, cell structure, protein synthesis, transport and signal transduction. The functions of identified proteins were discussed in relation to osmotic stress. Some of the identified proteins may be responsible for the adaptation of plants to adverse conditions.

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Section: Discussionmentioning

confidence: 99%

“…Studies performed on maize showed that the decrease of cellulases in the leaves may be associated with a lower tolerance to salt stress and inhibition of plant growth (Geilfus et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Changes in the root proteome of Triticosecale grains germinating under osmotic stress

2013

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“…It is suggested that maize leaf expansion under first phase of salt stress (osmotic phase) is restrictively limited due to the irreversible modification in cell wall that resists turgor driven expansion (Cramer and Bowman, 1991). Growth inhibition of maize cells under first phase of salt stress is associated with the reduced cell wall extensibility (Geilfus et al, 2011). For instance, increased cell wall thickness of vessels in sorghum (Baum et al, 2000) as well as increased thickness of Casparian strip in maize roots (Karahara et al, 2004) under salt stress have been previously reported as effective acclimation strategies to salinity.…”

Section: Introductionmentioning

confidence: 99%

Drought and salinity affect leaf and root anatomical structures in three maize genotypes

Hoque

Uddin

Fakir

et al. 2018

J Bangladesh Agric Univ

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Salt and drought stresses are being quite similar considered as two major constraints in maize production. To explore the anatomical bases of resistance to salt and drought stresses, 14 days old seedlings of three maize hybrid genotypes were subjected to salt (100 mM NaCl) and drought stress (equiosmotic PEG-6000) under hydroponic conditions. The experiment was laid out following a completely randomized design having four replicates. Root protoxylem and metaxylem thickness and root diameter were found to be unaffected in both of the drought resistant genotypes in response to salt and drought stresses whereas root protoxylem thickness increased (33.8 and 112.8% by salt and drought stress, respectively) in sensitive genotype (BARI hybrid maize-7). Bundle sheath thickness was found to increase in response to stresses (58.4 and 59.3% by salt and drought stress, respectively) in BARI hybrid maize-12. BARI hybrid maize-12 showed unaffected response in leaf epidermal thickness, phloem area, xylem area and total leaf thickness under both salt and drought stresses.

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“…For example, they have been identified as being involved in the salinity stress response in wheat (18), maize (19), Arabidopsis (20), roses (21), and sorghum (22) or under conditions of water deficit (23)(24)(25)(26)(27) or water excess and anoxia (28 -31). Recently, genotypic differences in ␤-expansin abundance have been demonstrated to occur between salt-stressed leaves of two maize cultivars that differ in their ability to grow under saline conditions (19,32). In leaves of the maize cultivar named Lector that was used in the present study, reduced ␤-expansin protein abundance has been found to correlate positively with reduced growth.…”

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confidence: 56%

“…Upon salt stress, the expansin transcripts ZmEXPA1, ZmEXPB2, ZmEXPB6, and ZmEXPB8 proved to be oppositionally regulated within both maize genotypes, viz. down-regulated in the stunted leaves of the maize hybrid Lector (this hybrid was used for this study) but, in contrast, up-regulated in the hybrid that almost maintained full growth (19,32). This down-regulation of ␤-expansin transcripts in Lector might contribute to the decrease in the corresponding ␤-expansin protein abundance previously shown by one-dimensional Western blotting (one-dimensional WB; Ref.…”

Section: Salt Stress Decreases the Abundance Of ␤-Expansin 6 Inmentioning

confidence: 96%

Down-Regulation of ZmEXPB6 (Zea mays β-Expansin 6) Protein Is Correlated with Salt-mediated Growth Reduction in the Leaves of Z. mays L.

Geilfus

Ober²,

Eichacker

et al. 2015

Journal of Biological Chemistry

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Background: Maize shows a rapid leaf growth reduction upon salinity, being a thread to global food security. Results: Exogenous application of Zea mays ␤-expansin 6 partially restores growth. Conclusion: ZmEXPB6 improves growth by acting on the capacities of cell walls to extend. Significance: A strategy to improve growth under saline conditions was shown. This knowledge can be useful for developing crops with a better performance under salinity.

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Differential Transcript Expression of Wall-loosening Candidates in Leaves of Maize Cultivars Differing in Salt Resistance

Cited by 35 publications

References 39 publications

Changes in the root proteome of Triticosecale grains germinating under osmotic stress

Changes in the root proteome of Triticosecale grains germinating under osmotic stress

Drought and salinity affect leaf and root anatomical structures in three maize genotypes

Down-Regulation of ZmEXPB6 (Zea mays β-Expansin 6) Protein Is Correlated with Salt-mediated Growth Reduction in the Leaves of Z. mays L.

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