Arbuscular mycorrhizal fungi (AMF) improved water deficit tolerance in two different sweet potato genotypes involves osmotic adjustments via soluble sugar and free proline

Yooyongwech, Suravoot; Samphumphuang, Thapanee; Tisarum, Rujira; Theerawitaya, Cattarin; Cha–um, Suriyan

doi:10.1016/j.scienta.2015.11.002

Cited by 132 publications

(74 citation statements)

References 42 publications

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“…The relative low RWC at drought might also explain the increase of the chlorophyll content because of shrinkage of the tissues. However, it stands in clear contrast to the results of Yooyongwech et al (2016) who found a reduction in chlorophyll content, but at more moderate conditions. The increase of chlorophyll content in all three cultivars in combination with the reduced transpiration and increased stomatal resistance gives evidence for oxidative stress because sweetpotato can sustain a relatively high photosynthetic activity under drought and alleviates functional deterioration (Kubota, 2003).…”

Section: Droughtcontrasting

confidence: 99%

“…1). This might be explained by the possible cheap osmotic adjustment with Na + and Clin case of salinity instead of a more energy consuming adjustment with sugars and proline in case of drought (Yooyongwech et al, 2016). The relative low RWC at drought might also explain the increase of the chlorophyll content because of shrinkage of the tissues.…”

Section: Droughtmentioning

confidence: 99%

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Diverse response of three sweetpotato cultivars to abiotic stresses and adjustment of free polyamine levels

El-Far

Berberich²,

Koyro

2019

Egypt. J. Bot.

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T HREE SWEETPOTATO cultivars, Abees, Mogamba and Santo Amaro, were subjected to moderate (-0.5MPa) and severe drought stress (-2.5MPa) or to salt treatments up to 200mM NaCl, respectively. Patterns of leaf polyamine contents were analyzed to verify whether these metabolites could be used as early traits of tolerance. Physiological parameters like leaf relative water content, total chlorophyll content, leaf electron conductance, stomata resistance and transpiration rate were used to indicate stress conditions of the plants and growth parameters were applied to identify the level of tolerance among the used cultivars. In all three cultivars, drought led to an increase of putrescine (Put) and decrease of spermidine (Spd) concentrations while spermine (Spm) was decreased only in the Santo Amaro cultivar. The most tolerant cultivar was Mogamba followed by Santo Amaro and Abees. However, this descending order was not reflected by the specific changes in polyamine levels but it is altered under drought as well as under salinity in both sensitive and tolerant cultivars. More investigations are needed to figure out if polyamines behave as a response of stress and/or a protective mechanism.

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Section: Droughtcontrasting

confidence: 99%

Section: Droughtmentioning

confidence: 99%

Diverse response of three sweetpotato cultivars to abiotic stresses and adjustment of free polyamine levels

El-Far

Berberich²,

Koyro

2019

Egypt. J. Bot.

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“…The previous investigation has shown that water deficit can reduce AMF colonization by causing adverse conditions for spore germination and hyphae growth and spread (Zhang et al, 2014;Khalil, 2015;Yooyongwech et al, 2016). Moreover, Meddich et al (2000) suggested that the reduction in the development and branching of the hyphae due to a reduction in plant photosynthesis was induced by drought stress.…”

Section: Discussionmentioning

confidence: 98%

“…German Society for Horticultural Science leave area and number, slowing growth rate, increasing root density and increasing root-to-shoot ratio (Gowda, 1998;Celano et al, 1999;Magliulo et al, 1999;Guerfel et al, 2009;Ben-Gal et al, 2010). Physiological adaptations to water deficit involved leaf water potential maintenance, osmotic adjustment of cell content, stomatal conductance control to regulate photosynthetic carbon fixation (Petridis et al, 2012;Toscano et al, 2014;Yooyongwech et al, 2016) which ultimately enhance water use efficiency. The very early response to water deficit is stomatal closure, which targets decreasing transpiration losses of water (Fernandez et al, 1997).…”

Section: What Are the New Findings?mentioning

confidence: 99%

Morphological, physiological and anatomical responses of two olive cultivars to deficit irrigation and mycorrhizal inoculation

Khalil¹,

El-Ansary²

2020

Europ.J.Hortic.Sci

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“…This adverse conditions as not only a constraint on the vegetation, but also impede the development of the microbial flora of the soil essential for plant nutrition and growth. However, it is well established that the association of legumes with arbuscular mycorrhizal fungi (AMF) can increase hydro mineral nutrition and significantly reducing parasitic infection and therefore allows to increase their productivity even when these plants grow on soils relatively poor (Hadiarto & Tran, 2011;Rooney et al, 2011;Zhao et al, 2015;Frosi et al, 2016;Yooyongwech et al, 2016). Moreover, the competitiveness with native strains of microorganisms makes inefficient inoculation with exotic AMF.…”

Section: Introductionmentioning

confidence: 99%

Effect of native arbuscular mycorrhiza fungi inocula on the growth of Cowpea [<i>Vigna unguiculata</i> (L.) Walp.] in three differents agro ecological zones in Burkina Faso

Haro¹,

Kadidia²,

Blagna³

et al. 2017

J. App. Bioscience.

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Objective: The use of symbiotic microorganisms as mycorrhizal fungi to improve the availability of nutrients to plants is of great importance in agriculture. In this study, we were interested in the response of cowpea, variety KVX 396-4-5-2D, to mycorrhizal inoculation in the context of selection of effective Arbuscular Mycorrhizal Fungi (AMF) to improve cowpea productivity. Methodology and results: Six native AMF inocula (Talé Mossi, Pissila, Worou 1, Worou 2, Yakouta 1 and Yakouta 2), composed of spores contained in cowpea crop soils, were tested in cowpea plants under greenhouse conditions. Microscopic assessment of mycorrhizal colonization and biomass production were evaluated at the flowering/fruiting stage. Results showed variability among inocula regarding their response to cowpea growth. The frequency of mycorrhizal colonization of inoculated plants was generally high (92%), but the intensities remained low (57.65%). However, Yakouta 2 inoculum has recorded the best frequency (92%) and intensity (57.65%) of mycorrhizal colonization. Inoculation of cowpea with Yakouta 2 inoculum resulted in a significant increase (4 folds) in shoot (3.33 g) and root (1.5 g) biomass compared to control plants (0.5 and 0.3 g respectively for shoot and root biomass). Conclusion and application of findings: From these results, it appears that Yakouta 2 seems to be the most efficient for the growth of cowpea. This generally showed a beneficial effect of inoculation of cowpea suggesting that an endomycorrhizal strain selection could be carried on for cowpea inoculation in situ.

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Arbuscular mycorrhizal fungi (AMF) improved water deficit tolerance in two different sweet potato genotypes involves osmotic adjustments via soluble sugar and free proline

Cited by 132 publications

References 42 publications

Diverse response of three sweetpotato cultivars to abiotic stresses and adjustment of free polyamine levels

Diverse response of three sweetpotato cultivars to abiotic stresses and adjustment of free polyamine levels

Morphological, physiological and anatomical responses of two olive cultivars to deficit irrigation and mycorrhizal inoculation

Effect of native arbuscular mycorrhiza fungi inocula on the growth of Cowpea [<i>Vigna unguiculata</i> (L.) Walp.] in three differents agro ecological zones in Burkina Faso

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