Influence of arbuscular mycorrhizae on biomass production, nutrient uptake and physiological changes in Ziziphus mauritiana Lam. under water stress

Mathur, Nupur; Vyas, Anil

doi:10.1006/jare.2000.0644

Cited by 52 publications

(34 citation statements)

References 12 publications

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“…The increase in total chlorophyll content in inoculated plants may be due to increased uptake of phosphorus, which will increase the photosynthetic activity of Catharanthus roseus plants and ultimately the chlorophyll content. The present results are in agreement with several authors who found increased chlorophyll content in mycorrhizal inoculated plants as compared to non inoculated plants (Allen et al, 1981;Morte et al, 2000;Mathur and Vyas, 2000). The mutuality of symbiotic fungi stimulated the production of more leaf chlorophyll that consequently may lead to an increase in photosynthetic potential of inoculated plants and hence enhanced growth (Ekanayake et al, 2004).…”

Section: Physiological and Biochemical Parameterssupporting

confidence: 93%

Interaction Effects of Arbuscular Mycorrhizal Fungi and Different Phosphate Levels on Growth Performance of Catharanthus roseus Linn.

2011

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Catharanthus roseus L. (Apocynaceae), a valuable medicinal plant with potential therapeutic value was inoculated with AM fungi Glomus fasciculatum under three different phosphate conditions. Catharanthus roseus plants raised in presence of the AM fungi showed increased growth in terms of (shoot length, root length, leaf number, fresh weight and dry weight). Total chlorophyll content and phosphate content of the shoot was found to be significantly higher in AM inoculated plants as compared to non AM Catharanthus plants. The activities of phosphatase enzymes were found to be increased in AM inoculated plants as compared to non AM plants. Root colonization percent was significantly higher in AM inoculated plants at zero and at all three phosphate levels after 60, 90 and 120 days of AM inoculation, but decreased at third phosphate level after 120 days of AM inoculation. The study suggests that Catharanthus roseus is dependent on the mycorrhizal fungi to a large extent for its growth and survival and also shows the potential of AM fungi Glomus fasciculatum in increasing growth and biomass of Catharanthus roseus L.

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Section: Physiological and Biochemical Parameterssupporting

confidence: 93%

Interaction Effects of Arbuscular Mycorrhizal Fungi and Different Phosphate Levels on Growth Performance of Catharanthus roseus Linn.

2011

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“…These results are in agreement with those previously found by Sánchez-Blanco et al (2004) and Morte et al (2001) who detected higher chlorophyll concentrations in mycorrhizal plants subjected to drought stress. In addition, Mathur and Vyas (2000) concluded that arbuscular mycorrhizal root colonization increased chlorophyll synthesis, which could be associated with higher photosynthesis rates and plant growth. Furthermore, our data demonstrate that rewatered inoculated plants maintained the leaf chlorophyll concentration.…”

Section: Discussionmentioning

confidence: 99%

Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: effect on growth and cell membrane stability

Beltrano

Ronco

2008

Braz. J. Plant Physiol.

111

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The aim of this paper was to investigate the contribution of the arbuscular mycorrhizal fungus Glomus claroideum to drought stress tolerance in wheat plants grown under controlled conditions in a growth chamber, and subjected to moderate or severe water stress and rewatering. Water stress tolerance was determined through total dry weight, leaf relative water content, leakage of solutes and leaf chlorophyll and protein concentrations in mycorrhizal and nonmycorrhizal wheat plants. Total dry weight and leaf chlorophyll concentrations were significantly higher in mycorrhizal plants after moderate or severe water stress treatments compared with non-mycorrhizal ones. Electrolyte leakage was significantly lower in water-stressed inoculated plants. Compared to non-inoculated plants, leaf relative water content and total protein concentration of inoculated individuals increased only under severe water stress. When irrigation was re-established, mycorrhizal plants increased their total dry weight and leaf chlorophyll concentration, and recovered cell membrane permeability in leaves compared with non-mycorrhizal plants. In conclusion, root colonization by G. claroideum could be an adequate strategy to alleviate the deleterious effects of drought stress and retard the senescence syndrome in wheat. Key words: mycorrhizae, relative water content, rewatering, solute leakage, water deficit A melhoria da tolerância do trigo (Triticum aestivum L.) ao estresse hídrico e à reidratação pelo fungo micorrízico arbuscular (Glomus claroideum): Efeito sobre o crescimento e estabilidade das membranas celulares: O objetivo do trabalho foi pesquisar a contribuição do fungo micorrízico arbuscular Glomus claroideum à tolerância ao déficit hídrico em plantas de trigo cultivadas sob condições controladas em uma câmara de crescimento, submetidas ao estresse hídrico moderado ou severo e reidratação. A tolerância das plantas ao estresse hídrico foi determinada mediante o peso seco total, conteúdo relativo de água foliar, extravasamento de solutos e concentrações foliares de clorofilas e proteínas totais nas plantas de trigo micorrizadas e não-micorrizadas. O peso seco total e a concentração de clorofila foram significativamente maiores nas plantas micorrizadas sob estresse hídrico moderado ou severo, quando comparadas com as não-micorrizadas. O extravasamento de solutos foi significativamente menor nas plantas inoculadas estressadas. O conteúdo relativo de água foliar e a concentração de proteínas totais nas plantas inoculadas aumentaram apenas em condições de estresse hídrico severo. Após a re-irrigação, nas plantas micorrizadas, houve aumento do peso seco total e da concentração de clorofilas, além da recuperação da integridade das membranas celulares, quando comparadas com as plantas não-micorrizadas. Em suma, a colonização das raízes por G. claroideum poderia ser uma estratégia adequada para reduzir os efeitos deletérios do estresse hídrico e retardar a síndrome da senescência em trigo. Palavras-chave: conteúdo relativo de água, déficit hídri...

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“…Root colonization with mycorrhizal fungi generally has positive effects on plant growth (Chalk et al, 2006) and mycorrhizal inoculation is frequently applied to increase crop plant productivity in agricultural systems (li et al, 2000oRtaS et al, 2003;oRtaS, 2010). Positive effects of mycorrhiza on plants include increases in height (hayman, 1986;hoekSema et al, 2010;SafapouR et al, 2011), biomass (VejSadoVa et al, 1993;mathuR and VyaS, 2000;Ramana et al, 2010), shoot:root ratio (gaVito et al, 2000;VeReSoglou et al, 2012), production of flowers (dodd et al, 1983;CaRey et al, 1992), and yield in crop plants such as Phaseolus vulgaris, Glycine max, and Triticum aestivum (VejSadoVa et al, 1993;BethlenfalVay et al, 1997;aBdel-fattah, 1997;li et al, 2005;Ramana et al, 2010;SafapouR et al, 2011). There is an extensive body of literature on the effects of mycorrhizal fungi in a broad range of plant families including legumes (BaRea and azConaguilaR, 1983;yang et al, 1994;olSen et al, 1999a;1999b;liu et al, 2003;SCheuBlin and Ridgway, 2004;oRtaS, 2008;muleta, 2010) but a detailed understanding of costs and benefits arising from the mycorrhizal symbiosis under different abiotic conditions is often lacking.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mycorrhizal Colonization and Light Limitation on Growth and Reproduction of Lima Bean (Phaseolus lunatus L.)

Millar¹

2014

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SummaryPlants can respond with sink stimulation of photosynthesis when colonized with fungal or bacterial root symbionts, compensating costs of carbohydrate allocation to the microbes. However, constraints may arise under light limitation when plants cannot extensively increase photosynthesis. We hypothesize that under such conditions the costs for maintaining the symbiosis outweigh the benefits, ultimately turning the mutualist microbes into parasites, resulting in reduced plant growth and reproduction. Using lima bean (Phaseolus lunatus) as an experimental plant, we applied two levels of light (full light, 75% shading) and microbial inoculation (sterile soil, mycorrhizal fungi) and quantified both vegetative and generative plant traits. As expected, shaded plants produced less vegetative biomass and seeds than non-shaded plants. However, individual seeds were significantly heavier in shaded plants and required less time for germination. While under both light conditions mycorrhizal plants showed a significantly reduced belowground biomass, mycorrhizal fungi neither enhanced overall plant performance in terms of total biomass and seed production nor resulted in measurable costs in either light condition. Our study suggests that mycorrhizal colonization neither provided benefits to lima bean plants grown under full light, nor created costs when photosynthesis was limited.

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Influence of arbuscular mycorrhizae on biomass production, nutrient uptake and physiological changes in Ziziphus mauritiana Lam. under water stress

Cited by 52 publications

References 12 publications

Interaction Effects of Arbuscular Mycorrhizal Fungi and Different Phosphate Levels on Growth Performance of Catharanthus roseus Linn.

Interaction Effects of Arbuscular Mycorrhizal Fungi and Different Phosphate Levels on Growth Performance of Catharanthus roseus Linn.

Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: effect on growth and cell membrane stability

Effect of Mycorrhizal Colonization and Light Limitation on Growth and Reproduction of Lima Bean (Phaseolus lunatus L.)

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