Variations in water status, gas exchange, and growth in Rosmarinus officinalis plants infected with Glomus deserticola under drought conditions

Sánchez-Blanco, María Jesús; Ferrández, Trinitario; Jiménez, M.N.; Morte, Asunción; Alarcón, Juan José

doi:10.1078/0176-1617-01191

Cited by 137 publications

(81 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is possibly due to the fact that at low soil water potential mycorrhizal plants can absorb more water than non-mycorrhizal ones, as mentioned by Porcel and Ruiz-Lozano (2004). 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.…”

Section: Discussionsupporting

confidence: 83%

“…As soil water content decreases, the relative importance of these factors would increase. Our results show that mycorrhizal symbiosis did not affect the leaf water status of well-watered plants, confirming other results obtained by Sánchez-Blanco et al (2004) and Goicoechea et al (2005).…”

Section: Discussionsupporting

confidence: 82%

“…Sánchez-Blanco et al (2004) found that under drought conditions leaf water potential decreased in both non-mycorrhizal and mycorrhizal plants, although this decrease was lower in water-stressed mycorrhizal plants. Symbiosis (AMF) has been shown to increase water deficit tolerance, although the mechanisms involved are contentious (Augé, 2001;Ruiz-Lozano, 2003).…”

Section: Discussionmentioning

confidence: 95%

“…Porcel and Ruiz-Lozano (2004) found that leaf water potential was higher in stressed mycorrhizal plants (-1.9 MPa) than in non-mycorrhizal stressed ones (-2.8 MPa). The mechanisms involved in water uptake by the AMF symbiosis include regulation of stomatal conductance, an increase in stomatal sensitivity to leafair vapor pressure deficit, and lowering leaf osmotic potential for turgor maintenance (Sánchez-Blanco et al, 2004). Arbuscular mycorrhizal fungi colonization has been shown to increase wheat drought resistance (AlKaraki et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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.

115

View full text Add to dashboard Cite

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...

show abstract

Section: Discussionsupporting

confidence: 83%

Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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.

115

View full text Add to dashboard Cite

show abstract

“…The tolerance index of AM plants at 0.3 and 0.5M NaCl were 55% and 42.3% compared to the T i of non-AM plants (51% and 32%) at the same level of salinity. The beneficial effects of mycorrhiza on the growth under saline conditions have been studied in various plant species and families (Sánchez-Blanco 2004). But when the plants were exposed to the higher concentrations of sodium chloride, the biomass of the plants was substantially reduced irrespective of the presence or absence of the mycorrhizal fungi.…”

Section: Discussionmentioning

confidence: 99%

Effect of salinity stress on mycorrhizal association and growth response of peanut infected by Glomus mosseae

Al-Khaliel¹

2010

Plant Soil Environ.

View full text Add to dashboard Cite

Arbuscular mycorrhiza is a mutualistic association between fungi and higher plants, and play a critical role in nutrient cycling and stress tolerance. However, much less is known about the mycorrhiza-mediated enhancement in growth and salinity tolerance of the peanuts (Arachis hypogaea L.) growing in the arid and semi-arid areas. Therefore, mycorrhizal status of Glomus mosseae in diverse salinity levels on original substrate soil conditions was investigated. Different growth parameters, accumulation of proline content and salt stress tolerance were studied. These investigations indicated that the arbuscular mycorrhizal fungi could improve growth of peanuts under salinity through enhanced nutrient absorption and photosynthesis. Chlorophyll content and leaf water content were increased significantly under salinity stress by the inoculation with mycorrhizal fungi. Tolerance of the plants to salinity was increased and the mycorrhizal association was found highly effective in enhancing peanut growth and establishment in soils under salinity and deficient in phosphorus.

show abstract

Mitigation of alkaline stress by arbuscular mycorrhiza in zucchini plants grown under mineral and organic fertilization

Cardarelli

Rouphael

Rea³

et al. 2010

Z. Pflanzenernähr. Bodenk.

View full text Add to dashboard Cite

A greenhouse experiment was carried out during the spring–summer 2009 to test the hypotheses that: (1) arbuscular-mycorrhizal (AM) inoculation with a biofertilizer containing Glomus intraradices gives an advantage to overcome alkalinity problems, (2) mineral fertilization is more detrimental to AM development than organic fertilization on an equivalent nutrient basis. Arbuscular mycorrhizal (AM) and non-AM of zucchini (Cucurbita pepo L.) plants were grown in sand culture with two pH levels in the nutrient solution (6.0 or 8.1) and two fertilization regimes (organic or mineral). The high-pH nutrient solution had the same basic composition as the lowpH solution, plus an additional 10 mM NaHCO3 and 0.5 g L–1 CaCO3. Increasing the concentration of NaHCO3 from 0 to 10 mM in the nutrient solution significantly decreased yield, plant growth, SPAD index, net assimilation of CO2 (ACO2 ), N, P, Ca, Mg, Fe, Mn, and Zn concentration in leaf tissue. The +AM plants under alkaline conditions had higher total, marketable yield and total biomass compared to –AM plants. The higher yield and biomass production in +AM plants seems to be related to the capacity of maintaining higher SPAD index, net ACO2 , and to a better nutritional status (high P, K, Fe, Mn, and Zn and low Na accumulation) in response to bicarbonate stress with respect to –AM plants. The percentage root colonization was significantly higher in organic-fertilized (35.7%) than in mineral-fertilized plants (11.7%). Even though the AM root colonization was higher in organic-fertilized plants, the highest yield and biomass production were observed in mineral-fertilized plants due to the better nutritional status (higher N, P, Ca, and Mg), higher leaf area, SPAD index, and ACO2

show abstract

Variations in water status, gas exchange, and growth in Rosmarinus officinalis plants infected with Glomus deserticola under drought conditions

Cited by 137 publications

References 33 publications

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

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 salinity stress on mycorrhizal association and growth response of peanut infected by Glomus mosseae

Mitigation of alkaline stress by arbuscular mycorrhiza in zucchini plants grown under mineral and organic fertilization

Contact Info

Product

Resources

About