Arbuscular mycorrhizal inoculation increases drought tolerance and survival of Cenostigma microphyllum seedlings in a seasonally dry tropical forest

Pereira, Silvia; Santos, Mariana Luiza de Oliveira; Leal, Inara R.; Tabarelli, Marcelo

doi:10.1016/j.foreco.2021.119213

Cited by 8 publications

(7 citation statements)

References 42 publications

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“…However, the variation in the survival rate of plants under drought stress and inoculated with AMF has already been reported on species such as Cenostigma microphyllum Mart. Ex G. Don [ 46 ] and the common myrtle ( Myrtus communis L.) [ 47 ].…”

Section: Discussionmentioning

confidence: 99%

Arbuscular Mycorrhizal Symbiosis Improves Ex Vitro Acclimatization of Sugarcane Plantlets (Saccharum spp.) under Drought Stress Conditions

Spinoso-Castillo¹,

Moreno-Hernández²,

Mancilla-Álvarez³

et al. 2023

Plants

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The symbiotic associations between arbuscular mycorrhizal fungi (AMF) and plants can induce drought stress tolerance. In this study, we evaluated the effect of Glomus intraradices, a mycorrhizal fungus, on the ex vitro development and survival of sugarcane plantlets subjected to drought stress during the acclimatization stage of micropropagation. In vitro obtained sugarcane plantlets (Saccharum spp. cv Mex 69–290) were inoculated with different doses of G. intraradices (0, 100, and 200 spores per plantlet) during greenhouse acclimatization. Sixty days after inoculation, plantlets were temporarily subjected to drought stress. We evaluated the survival rate, total chlorophyll, total protein, carotenoids, proline, betaine glycine, soluble phenolic content, and antioxidant capacity every 3 days for 12 days. Symbiotic interaction was characterized by microscopy. Our results showed that the survival rate of inoculated plants was higher in 45% than the treatment without mycorrhizae. Total chlorophyll, protein, proline, betaine glycine content, and antioxidant capacity were increased in AMF inoculated plants. The soluble phenolic content was higher in non-inoculated plants than the treatment with mycorrhizae during the drought stress period. Microscopy showed the symbiotic relationship between plant and AMF. The early inoculation of 100 spores of G. intraradices per sugarcane plantlet during the acclimatization stage could represent a preconditioning advantage before transplanting into the field and establishing basic seedbeds.

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Section: Discussionmentioning

confidence: 99%

Arbuscular Mycorrhizal Symbiosis Improves Ex Vitro Acclimatization of Sugarcane Plantlets (Saccharum spp.) under Drought Stress Conditions

Spinoso-Castillo¹,

Moreno-Hernández²,

Mancilla-Álvarez³

et al. 2023

Plants

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“…seedlings' productivity, and they found that AMF inoculation had a significant effect on plant resistance to drought stress and maintaining productivity. Pereira et al (2021) investigated the effects of AMF inoculation on drought tolerance and survival of Cenostigma microphyllum Tul. seedlings, and they found that AMF-inoculated plants easily rehabilitate from rehydration under water stress.…”

Section: Introductionmentioning

confidence: 99%

“…These investigations may indicate that AMF could be of more benefit under drought stress because plants with short, thick, and less fine root hairs benefit better, and AMF can replace the fine root hairs and serve in the absorption and transport of minerals and water from the soil micro-pores (Brundrett et al, 1996). AMF improves the morphological performance mainly biomass production of host plants by facilitating increased growth, root collar diameter, root length, number of leaves, and leaf area (Birhane et al, 2012;Andrino et al, 2020;Pereira et al, 2021). It also helps to improve physiological performance by increasing photosynthesis rate and water use efficiency (Birhane et al, 2012;Andrino et al, 2020;Pereira et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…AMF improves the morphological performance mainly biomass production of host plants by facilitating increased growth, root collar diameter, root length, number of leaves, and leaf area (Birhane et al, 2012;Andrino et al, 2020;Pereira et al, 2021). It also helps to improve physiological performance by increasing photosynthesis rate and water use efficiency (Birhane et al, 2012;Andrino et al, 2020;Pereira et al, 2021). Increases in morpho-physiological performance are ensured by the combinations of nutritional, morphological, and physiological (Birhane et al, 2012), nutritional and non-nutritional (Auge et al, 2016), and physiological and metabolic mechanisms (Hu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Increases in morpho-physiological performance are ensured by the combinations of nutritional, morphological, and physiological (Birhane et al, 2012), nutritional and non-nutritional (Auge et al, 2016), and physiological and metabolic mechanisms (Hu et al, 2020). These microbes are also significantly important in increasing photosynthetic water use efficiency through decreased transpiration rates (Birhane et al, 2012;Pereira et al, 2021). AMF colonization also increases the morpho-physiological performance of plants through improved soil physical and chemical properties (Hailemariam et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Arbuscular mycorrhizal fungi improve biomass, photosynthesis, and water use efficiency of Opuntia ficus-indica (L.) Miller under different water levels

Kebede,

Birhane,

Ayimut

et al. 2023

J. Arid Land

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Opuntia ficus-indica (L.) Miller is a CAM (crassulacean acid metabolism) plant with an extraordinary capacity to adapt to drought stress by its ability to fix atmospheric CO 2 at nighttime, store a significant amount of water in cladodes, and reduce root growth. Plants that grow in moisture-stress conditions with thick and less fine root hairs have a strong symbiosis with arbuscular mycorrhizal fungi (AMF) to adapt to drought stress. Water stress can limit plant growth and biomass production, which can be rehabilitated by AMF association through improved physiological performance. The objective of this study was to investigate the effects of AMF inoculations and variable soil water levels on the biomass, photosynthesis, and water use efficiency of the spiny and spineless O. ficus-indica. The experiment was conducted in a greenhouse with a full factorial experiment using O. ficus-indica type (spiny or spineless), AMF (presence or absence), and four soil water available (SWA) treatments through seven replications. Water treatments applied were 0%-25% SWA (T1), 25%-50% SWA (T2), 50%-75% SWA (T3), and 75%-100% SWA (T4). Drought stress reduced biomass and cladode growth, while AMF colonization significantly increased the biomass production with significant changes in the physiological performance of O. ficus-indica. AMF presence significantly increased biomass of both O. ficus-indica plant types through improved growth, photosynthetic water use efficiency, and photosynthesis. The presence of spines on the surface of cladodes significantly reduced the rate of photosynthesis and photosynthetic water use efficiency. Net photosynthesis, photosynthetic water use efficiency, transpiration, and stomatal conductance rate significantly decreased with increased drought stress. Under drought stress, some planted mother cladodes with the absence of AMF have not established daughter cladodes, whereas AMF-inoculated mother cladodes fully established daughter cladodes. AMF root colonization significantly increased with the decrease of SWA. AMF caused an increase in biomass production, increased tolerance to drought stress, and improved photosynthesis and water use efficiency performance of O. ficus-indica. The potential of O. ficus-indica to adapt to drought stress is controlled by the morpho-physiological performance related to AMF association.

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Phenotypic plasticity of trichomes and stomatal density in Cenostigma microphyllum (Mart. ex G. Don) E. Gagnon and G. P. Lewis (Fabaceae) in a seasonally dry tropical forest, Brazil

Accioly

Corte-Real²,

Farias

et al. 2022

Braz. J. Bot

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Arbuscular mycorrhizal inoculation increases drought tolerance and survival of Cenostigma microphyllum seedlings in a seasonally dry tropical forest

Cited by 8 publications

References 42 publications

Arbuscular Mycorrhizal Symbiosis Improves Ex Vitro Acclimatization of Sugarcane Plantlets (Saccharum spp.) under Drought Stress Conditions

Arbuscular Mycorrhizal Symbiosis Improves Ex Vitro Acclimatization of Sugarcane Plantlets (Saccharum spp.) under Drought Stress Conditions

Arbuscular mycorrhizal fungi improve biomass, photosynthesis, and water use efficiency of Opuntia ficus-indica (L.) Miller under different water levels

Phenotypic plasticity of trichomes and stomatal density in Cenostigma microphyllum (Mart. ex G. Don) E. Gagnon and G. P. Lewis (Fabaceae) in a seasonally dry tropical forest, Brazil

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