Response of mycorrhizal hybrid tomato cultivars under saline stress

Huang, Juying; Lai, Wei-An; Singh, Satnam; Hameed, Asif; Young, Chiu-Chung

doi:10.4067/s0718-95162013005000037

Cited by 6 publications

(7 citation statements)

References 27 publications

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“…We observed that salt stress had not significantly reduced RGR Plant in AM-inoculated tomato plants immediately after transplanting while in non-inoculated AMF´plants the growth rate was significantly lower. Our results are in accordance with previous studies on other vegetable crops [14,17,42] and tomato itself [16,[43][44][45]. Considering the differences between AMF+ and AMF´plants regarding RGR Plant changes within seven days after transplanting into saline substrate, differences in plant dry matter are expected to become larger over time.…”

Section: Discussionsupporting

confidence: 82%

“…Although AMF can themselves be negatively affected by soil salinity [9,10], several studies report improved growth and performance of mycorrhizal plants under salt stress [9,[11][12][13][14][15][16]. The symbiosis of plants with AMF often results in increased nutrient uptake, accumulation of osmoregulatory compounds, an increase in photosynthetic rates, and an decrease in root respiration and water use, suggesting that salt stress alleviation by AMF results from a combination of effects ranging from nutritional to molecular levels [11,17,18].…”

Section: Introductionmentioning

confidence: 99%

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AMF Inoculation Enhances Growth and Improves the Nutrient Uptake Rates of Transplanted, Salt-Stressed Tomato Seedlings

2015

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Abstract:The study aimed to investigate the effects of commercially available AMF inoculate (Glomus sp. mixture) on the growth and the nutrient acquisition in tomato (Solanumlycopersicum L.) plants directly after transplanting and under different levels of salinity. Inoculated (AMF+) and non-inoculated (AMF´) tomato plants were subjected to three levels of NaCl salinity (0, 50, and 100 mM¨NaCl). Seven days after transplanting, plants were analyzed for dry matter and RGR of whole plants and root systems. Leaf tissue was analyzed for mineral concentration before and after transplanting; leaf nutrient content and relative uptake rates (RUR) were calculated. AMF inoculation did not affect plant dry matter or RGR under fresh water-irrigation. The growth rate of AMF´plants did significantly decline under both moderate (77%) and severe (61%) salt stress compared to the fresh water-irrigated controls, while the decline was much less (88% and 75%,respectively)and statistically non-significant in salt-stressed AMF+ plants. Interestingly, root system dry matter of AMF+ plants (0.098 g plant -1 ) remained significantly greater under severe soil salinity compared to non-inoculated seedlings (0.082 g plant -1 ). The relative uptake rates of N, P, Mg, Ca, Mn, and Fe were enhanced in inoculated tomato seedlings and remained higher under (moderate) salt stress compared to AMF´plants This study suggests that inoculation with commercial AMF during nursery establishment contributes to alleviation of salt stress by maintaining a favorable nutrient profile. Therefore, nursery inoculation seems to be a viable solution to attenuate the effects of increasing soil salinity levels, especially in greenhouses with low natural abundance of AMF spores.

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Section: Discussionsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

AMF Inoculation Enhances Growth and Improves the Nutrient Uptake Rates of Transplanted, Salt-Stressed Tomato Seedlings

2015

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“…This is the case of cucumber cultivated under saline conditions: fruits produced by mycorrhizal plants had higher amounts of soluble proteins, sugars and vitamin C and lower levels of nitrate than those from non-mycorrhizal plants ( Han et al, 2012 ). Likewise, Huang et al (2013) measured higher contents of N, P, K, and Ca in tomato fruits of hybrid cultivars associated with AMF than in those of non-inoculated ones. Beneficial effects of mycorrhizal symbiosis on yield and fruit quality of crops under salty conditions, however, can vary depending on plant cultivars and fungal strains, as demonstrated by results of Huang et al (2013) in tomato and those obtained by Sinclair et al (2014) working with strawberry.…”

Section: Impact Of Amf On the Quality Of Crops And Fruits Undergoing mentioning

confidence: 87%

Arbuscular Mycorrhizal Symbiosis as a Promising Resource for Improving Berry Quality in Grapevines Under Changing Environments

2018

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Climate change and their resulting impacts are becoming a concern for winegrowers due to the high socioeconomic relevance of the winemaking sector worldwide. In fact, the projected climate change is expected to have detrimental impacts on the yield of grapevines, as well as on the quality and properties of grapes and wine. It is well known that arbuscular mycorrhizal fungi (AMF) can improve the nutritional quality of edible parts of crops and play essential roles in the maintenance of host plant fitness under stressed environments, including grapevines. The future scenarios of climate change may also modify the diversity and the growth of AMF in soils as well as the functionality of the mycorrhizal symbiosis. In this review, we summarize recent research progress on the effects of climate change on grapevine metabolism, paying special attention to the secondary compounds involved in the organoleptic properties of grapes and wines and to the levels of the phytohormones implied in the control of berry development and fruit ripening. In this context, the potential role of AMF for maintaining fruit quality in future climate change scenarios is discussed.

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“…A large number of studies have shown that growth responses to AMF colonization depend both on the host plant and fungal species, as well as on the experimental conditions (Huang et al, 2013). Evidences indicate that AMF induce changes in the primary me-tabolism, including photosynthesis, water uptake and drought tolerance (Ruiz-Lozano, 2003).…”

Section: Discussionmentioning

confidence: 99%

The effect of inoculation with mycorrhiza: AM on growth, phenolics, tannins, phenolic composition and antioxidant activity in Valeriana jatamansi Jones

Jugran

Bahukhandi

Dhyani

et al. 2015

J. Soil Sci. Plant Nutr.

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The mycorrhizal inoculation often reported to increase plant growth and secondary metabolites production, however, little is known on the effect of arbuscular mycorrhizal fungi (AMF) on different growth parameters in Valeriana jatamansi, an important Himalayan medicinal herb. To evaluate mycorrhizal effect, V. jatamansi collected from natural population were planted and growth parameters, phytochemicals, antioxidant and phenylalanine ammonia lyase (PAL) activities were determined. Significantly (p<0.05) higher above ground fresh weight (AGFW), above ground dry weight (AGDW), below ground fresh weight (BGFW), below ground dry weight (BGDW) were recorded in plants after the 2 nd year. The total phenolics were maximum in aerial [18.03±0.05 (1 st year) and 10.88±0.52mg GAE/g (2 nd year)] and root portions [(14.30±0.04 (1 st year) 7.92±0.27 (2 nd year)] of the treated plants as compared to corresponding portions of control plants in both the years. Similarly, the tannin content was higher in treated plants as compared to untreated controls. Variation in different phenolic compounds was also recorded and significantly higher contents of gallic acid, chlorogenic acid, Catechin, and Hydroxy benzoic acid during 1 st year was observed. Antioxidant activity of aerial and root pprtion measured by three in vitro assays, showed significant variation (p<0.05) among plants of both the years. Significantly (p<0.05) higher PAL activity was recorded in treated over control plants in 2 nd year. The results demonstrated that inoculation with AMF enhances both phenolics and tannins as well as stimulates antioxidant activity suggesting a positive influence of AMF inoculation on yield and for the production of nutraceuticals.

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Response of mycorrhizal hybrid tomato cultivars under saline stress

Cited by 6 publications

References 27 publications

AMF Inoculation Enhances Growth and Improves the Nutrient Uptake Rates of Transplanted, Salt-Stressed Tomato Seedlings

AMF Inoculation Enhances Growth and Improves the Nutrient Uptake Rates of Transplanted, Salt-Stressed Tomato Seedlings

Arbuscular Mycorrhizal Symbiosis as a Promising Resource for Improving Berry Quality in Grapevines Under Changing Environments

The effect of inoculation with mycorrhiza: AM on growth, phenolics, tannins, phenolic composition and antioxidant activity in Valeriana jatamansi Jones

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