Arbuscular Mycorrhizal Fungi and Tolerance of Salt Stress in Plants

Saxena, Bhawna; Shukla, Kamlesh Kumar; Giri, Bhoopander

doi:10.1007/978-981-10-4115-0_4

Cited by 48 publications

(30 citation statements)

References 163 publications

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“…Salinization of soil is one of the major factors that restrict plant growth and makes them remain unproductive (24,25). Though salinity exhibited inhibitory effects, inoculation of Gliricidia sepium seedlings with R. fasciculatus noticeably reduced injurious effects of salinity stress.…”

Section: Discussionmentioning

confidence: 99%

Mycorrhizal dependency and growth response of Gliricidia sepium (Jacq.) Kunth ex Walp. under saline condition

Giri

2017

Plant Sci. Today

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In pursuit of salinity-mycorrhiza interaction, a pot experiment was conducted to determine the dependence of Gliricidia sepium on arbuscular mycorrhizal association under salinity stress, which was imposed using different concentrations of sodium chloride solutions. The present study revealed that arbuscular mycorrhizal fungus; Rhizophagus fasciculatus significantly increased growth and biomass of G. sepium plants under saline condition. G. sepium showed a high degree of dependence on mycorrhizal symbiosis under saline as compared to non-saline condition. Under non-saline condition (SS0), G. sepium plants exhibited 23.9% dependence on R. fasciculatus, which increased with increase in the levels of salinity. At SS3 level, G. sepium plants showed 46.6% mycorrhizal dependency followed by SS2 and SS1 levels of salinity. However, there was no significant difference between mycorrhizal dependency of G. sepium at SS1 and SS2 levels of salinity. Improved growth of G. sepium under salinity stress revealed R. fasciculatus a promising inoculant for the reclamation of degraded saline soils. Keywords soil salinity; arbuscular mycorrhiza; nutrition uptake; biomass production; waste land reclamation Citation Giri B. Mycorrhizal dependency and growth response of Gliricidia sepium (Jacq.) Kunth ex Walp. under saline condition. Plant Science Today 2017;4(4):154-160.

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Section: Discussionmentioning

confidence: 99%

Mycorrhizal dependency and growth response of Gliricidia sepium (Jacq.) Kunth ex Walp. under saline condition

Giri

2017

Plant Sci. Today

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“…Nonspecific resistance phenomena, triggering the ROS neutralising mechanism or regulating the osmotic pressure or binding and localisation of damaging ions in plants, are being intensively studied now (Wang et al, 2003;Rejeb et al, 2014;Saxena et al, 2017). Earlier we found that redirection of the cytoplasmic enzyme of Fe-dependent superoxide dismutase 1 into the plastid results in increased resistance to chloride and sulphate salinity (Baranova et al, 2011) and to Phytophthora infestans (Baranova et al, 2017), which clearly indicates the formation of nonspecific protection.…”

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confidence: 93%

Targeted Protection of Mitochondria of Mesophyll Cells in Transgenic CYP11A1 CDNA Expressing Tobacco Plant Leaves After NaCl-Induced Stress Damage

Баранова

Khaliluev

Спивак

et al. 2018

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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Recently we have showed that the expression of the mammalian CYP11A1 cDNA in plants confers their resistance to abiotic and biotic stresses. To determine the role of heterologous expression of cytochrome P450scc cDNA in resistance to ROS (radical oxygen species) dependent abiotic stresses, the structural changes of mitochondria and peroxisomes were studied under 150 mM NaCl-induced 14-day salinity treatment on juvenile tobacco plants in in vitro culture. Ultrastructural analysis of mesophyll cells of transgenic tobacco leaves constitutively expressing CYP11A1 cDNA was performed. Under NaCl stress, a change in shape from rounded to elon-gated, reduced section area, formation of branched mitochondria, as well as the emergence of triangular and rhomboid cristae, densification of a mitochondrial matrix, increase in density of contrasting membranes and their thickness were observed in non-transgenic plants. Transgenic plants without stress applied had mitochondria with rounded and elongated shape, twice as small as in non-transgenic plants, with a dense matrix and sinuous cristae. Surprisingly, the effect of NaCl led to increase in size of mitochondria by 1.5 times, decomposition of matrix and the emergence in organelles of light zones presumably containing mitochondrial DNA strands. Thus, the structural organisation of transgenic plant mitochondria under salinity treatment was comparable to that of non-transgenic plants under native conditions. It was also noted that the transgenic plant peroxisomes differed in non-transgenic tobacco both in normal condition and under the action of NaCl. The observed differences in ultrastructural organisation of mitochondria not only support our earlier notion about successful incorporation of the mature P450scc into this organelle, but for the first time demonstrate that the mammalian CYP11A1 signal peptide sequence could be efficiently used in the formation of targeted mitochondria protection of plants from salinity-induced damage.

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“…There are many important salts which are soluble in soil solutions and could be considered as a very good media for the growth and development of crops [4]. These salts which are needed by plants to carry out various metabolic activities are absorbed by plant roots and are translocated to the different plants parts which they are required.…”

Section: Introductionmentioning

confidence: 99%

“…These salts which are needed by plants to carry out various metabolic activities are absorbed by plant roots and are translocated to the different plants parts which they are required. However, when these salts are present in excessive quantities in the soil, they hinder plant nutrient and water uptake which in turn disrupts the ion sharing at both the cellular and the whole-plant levels, thus prompting osmotic and ionic imbalances [4]. Changes of that magnitude usually results in reduced growth and development of plants, subsequently resulting in the whole plant death.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Salt Tolerance via <i>Glomus geosporum</i> Inoculation in <i>Telfairia occidentalis</i> Hook. F. Seedlings

Okon

Eneh

Uboh

et al. 2019

ILNS

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The leafy vegetable Telfairia occidentalis is a tropical vine grown in West Africa; it is indigenous to Southern Nigeria and is usually subjected to extreme salt stress in Southern Nigeria as well as in the world that results in significant loss of T. occidentalis production. Therefore, the present investigation was aimed at evaluating the response of T. occidentalis seedlings inoculated with arbuscular mycorrhizal fungi (Glomus geosporum) in saline soil and further to determine the threshold of T. occidentalis salinity tolerance in association with G. geosporum. The total photosynthetic pigments contents in saline soil treatment were significantly (p=0.05) reduced as well as percentage arbuscular mycorrhizal fungi colonization (53.97 to 22.41%). Mycorrhizal dependency was significantly (p=0.05) higher in saline soil treatments compared to control (100.00% to 15.13%). Mineral analysis of T. occidentalis leaves revealed increased uptake and accumulation of Na+ (500.00 mg/kg in control to 2920.13 mg/kg in saline soil treatment). Saline soil treatments significantly (p=0.05) reduced the K, Mg, N, P and Ca. AM Fungi significantly (p=0.05) increased the photosynthetic pigments and minerals both in saline and non-saline soil treatments. Using different mechanisms T. occidentalis by association with G. geosporum showed better salt tolerance thank the uninoculated plants. G. geosporum was able to impose some physiological and root morphological changes such as an extensive network of the mycorrhizal-plant roots to improve water and mineral nutrient uptake. Physiologically G. geosporum inoculation enriched T. occidentalis vigour, attuned the rate of K+/Na+ which restored nutrient and water balance in the plant and directly resulting in the enhancement of salt tolerance in T. occidentalis seedlings, thus improving growth and yield.

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Arbuscular Mycorrhizal Fungi and Tolerance of Salt Stress in Plants

Cited by 48 publications

References 163 publications

Mycorrhizal dependency and growth response of Gliricidia sepium (Jacq.) Kunth ex Walp. under saline condition

Mycorrhizal dependency and growth response of Gliricidia sepium (Jacq.) Kunth ex Walp. under saline condition

Targeted Protection of Mitochondria of Mesophyll Cells in Transgenic CYP11A1 CDNA Expressing Tobacco Plant Leaves After NaCl-Induced Stress Damage

Enhancement of Salt Tolerance via <i>Glomus geosporum</i> Inoculation in <i>Telfairia occidentalis</i> Hook. F. Seedlings

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