Different effects of arbuscular mycorrhizal fungal isolates from saline or non-saline soil on salinity tolerance of plants

Chen, Tian; Feng, Gu; Li, X.L; Zhang, F.S

doi:10.1016/j.apsoil.2003.10.010

Cited by 164 publications

(108 citation statements)

References 24 publications

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“…Al-Karaki et al (2001) reported that mycorrhizal colonization was negatively affected by salinity stress and they concluded that it was possibly due to the effect of salt on initial colonization. Several other researchers have also shown that salinity reduces mycorrhizal colonization through inhibiting the germination of spores (Hirrel and Gerdemann 1980), inhibiting growth of hyphae in soil and hyphal spreading after initial infection had occurred (McMillen et al 1998), and reducing the number of arbuscules (Tian et al 2004).…”

Section: Mycorrhizaementioning

confidence: 99%

Co-inoculations of arbuscular mycorrhizal fungi and rhizobia under salinity in alfalfa

Ashrafi

Zahedi

Razmjoo

2014

Soil Science and Plant Nutrition

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Alfalfa (Medicago sativa L.) is cultivated in arid and semi-arid regions where salinity is one of the main limiting factors for its production. Thus, this experiment was conducted to evaluate the efficacy of arbuscular mycorrhizal fungus (AMF), Glomus mosseae, alfalfa rhizobia Sinorhizobium meliloti (R) seed inoculation in the development of salinity tolerance of different alfalfa cultivars (Rehnani, Pioneer and Bami) under a variety of salinity levels. The results revealed that under non-stress condition, root mycorrhizal infection, nodulation (the number and weight of nodules per plant), potassium (K), calcium (Ca), phosphorus (P), zinc (Zn), copper (Cu) and magnesium (Mg) contents of the root and shoot, the value of the K/ Na ratio, protein [calculated from the nitrogen (N) content] and proline contents of the shoot and the alfalfa yield were found to be the highest while Na contents of the root and shoot were seen to be the lowest when seeds were double inoculated followed by mycorrhizae, rhizobium and control treatments, respectively. Similarly, under salinity condition, the greatest amounts of mycorrhizal infection, nodulation, root and shoot P contents, the value of K/Na ratio, the shoot proline content and the root Ca content were enhanced with the least amount of leaf Na content related to the cases of seeds which were double inoculated, followed by mycorrhizae, rhizobium and control treatments respectively. The results suggested that inoculation of alfalfa seed with AMF or R, especially double inoculation, causes a considerable increase in alfalfa yield under both saline and non-saline conditions by increasing colonization, nodulation and nutrient uptake.

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Section: Mycorrhizaementioning

confidence: 99%

Co-inoculations of arbuscular mycorrhizal fungi and rhizobia under salinity in alfalfa

Ashrafi

Zahedi

Razmjoo

2014

Soil Science and Plant Nutrition

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“…Esto debido a que la red de hifas facilita la absorción de nutrientes como P y K ya que existe una mayor área de exploración del sustrato (Munn & Mosse 1980, Giri & Mukerji 2004, Tain et al 2004.…”

Section: Mejora En La Economía De Nutrientesunclassified

Hongos ectomicorrícicos y la tolerancia a la salinidad en plantas

Aguilar-Aguilar¹,

Pérez‐Moreno²,

Ferrera‐Cerrato³

et al. 2009

Rev. chil. hist. nat.

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RESUMENEl proceso de salinización de los suelos constituye un problema generalizado a nivel global. En este sentido, los hongos ectomicorrícicos tienen una importante participación en la recuperación de suelos forestales ya que involucran una serie de mecanismos celulares que pueden contribuir a la tolerancia a la salinidad en plantas que habitan los bosques templados o boreales. La participación de los hongos ectomicorrícicos en la tolerancia a la salinidad involucra la regulación homeostática de los iones, la mejora de captación de agua y la inducción de genes específicos en las raíces colonizadas. Los hongos ectomicorrícicos pueden estimular la presencia de osmolitos como la prolina, azúcares y polioles que contribuyen en la protección de las células vegetales. Además, estos organismos inducen la síntesis de enzimas antioxidantes y glutatión que participan en la disminución de especies reactivas de oxígeno. Esta revisión ofrece una descripción de la participación de los hongos ectomicorrícicos en la tolerancia a la salinidad en plantas.Palabras clave: salinidad, hongos ectomicorrícicos, tolerancia. ABSTRACTThe process of salinization of the soil is a widespread problem at the global level. In this sense, ectomycorrhizal fungi have an important role in the recovery of forest soil, as it involves a number of cellular mechanisms that may contribute to the salinity tolerance in plants that inhabit temperate and boreal forests. The participation of ectomycorrhizal fungi on the salinity tolerance involves the ion-homeostasis regulation, improving uptake water and inducing specific gene in roots colonized. Likewise ectomycorrhizal fungi can stimulate the presence of osmolytes as proline, sugars and polyols that contribute to the protection of plant cells. Additionally, these organisms stimulate the synthesis of glutathione and antioxidant enzymes involved in the decrease of reactive oxygen species. This review provides an overview of participation of ectomycorrhizal fungi in the salinity tolerance in plants.

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“…The higher fungal spore density in saline soils represent that the sporulation is stimulated under salt stress (Tresner and Hayes, 1971) it concludes that AMF may produce spores at low root-colonization levels in severe saline conditions (Aliasgharzadeh et al, 2001). Though many reports (Al-Khaliel, 2010;Tian et al, 2004;Sannazzaro et al, 2006;Giri and Mukerji, 2004) reveals that AMF spores are sustainable under salinity stress, few states that high saline content present in the soil (150 mM NaCl) may inhibit the AMF spore germination, hyphae growth, and hyphal spreading after initial infection (McMillen et al, 1998). Tian et al (2004) …”

Section: Amf and Stressmentioning

confidence: 99%

“…Among 1.5 billion hectares of cultivable land present in the world, 77 million hectares (5%) are not favorable for good yield because of high salt content (Abdel Latef and Chaoxing, 2011) and 20% of the irrigated agricultural land is adversely affected by salinity (Wu et al, 2010). Salt-affected soils are increasing steadily in all continents, in particular arid and semi-arid areas and they cover more than 7% of the total land surface in earth (Evelin et al, 2009;Tian et al, 2004), it represents that salt stress is a major limiting factor in crop production. Soil salinity increases the osmotic stress in plants and hence the crop yield decreases, high concentration of Na + and Cl -present in the saline soil results nutrient imbalance, reduce nutrient uptake including P, and ion toxicity of plants (Daei et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Spore Associated Bacteria (SAB) of Arbuscular Mycorrhizal Fungi (AMF) and Plant Growth Promoting Rhizobacteria (PGPR) Increase Nutrient Uptake and Plant Growth Under Stress Conditions

Selvakumar¹,

Chandrasekaran²,

Shagol³

et al. 2012

Korean Journal of Soil Science and Fertilizer

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Microorganisms present in the rhizosphere soil plays a vital role in improving the plant growth and soil fertility. Many kinds of fertilizers including chemical and organic has been approached to improve the productivity. Though some of them showed significant improvement in yield, they failed to maintain the soil properties. Rather they negatively affected soil eventually, the land became unsuitable for agricultural. To overcome these problems, microorganisms have been used as effective alternative. For past few decades, plant growth promoting rhizobacteria (PGPR) and arbuscular mycorrhizal fungi (AMF) have been used as effective inoculants to enhance the plant growth and productivity. PGPR improves the plant growth and helps the plant to withstand biotic and abiotic stresses. AM fungi are known to colonize roots of plants and they increase the plant nutrient uptake. Spore associated bacteria (SAB) are attached to spore wall or hyphae and known to increase the AMF germination and root colonization but their mechanism of interaction is poorly known. Better understanding the interactions among AMF, SAB and PGPR are necessary to enhance the quality of inoculants as a biofertilizers. In this paper, current knowledge about the interactions between fungi and bacteria are reviewed and discussed about AMF spore associated bacteria.

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Different effects of arbuscular mycorrhizal fungal isolates from saline or non-saline soil on salinity tolerance of plants

Cited by 164 publications

References 24 publications

Co-inoculations of arbuscular mycorrhizal fungi and rhizobia under salinity in alfalfa

Co-inoculations of arbuscular mycorrhizal fungi and rhizobia under salinity in alfalfa

Hongos ectomicorrícicos y la tolerancia a la salinidad en plantas

Spore Associated Bacteria (SAB) of Arbuscular Mycorrhizal Fungi (AMF) and Plant Growth Promoting Rhizobacteria (PGPR) Increase Nutrient Uptake and Plant Growth Under Stress Conditions

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