Arbuscular mycorrhizae improves low temperature stress in maize via alterations in host water status and photosynthesis

Zhu, Xiancan; Song, Fuqiang; Xu, Hua

doi:10.1007/s11104-009-0239-z

Cited by 184 publications

(107 citation statements)

References 38 publications

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“…Although root hairs contributed to the improvement of gas exchange, the influence of root hairs was not as significant as that of the AM fungus. Gas exchange has been reported to correlate with uptake and transport of water and nutrients (Zhu et al 2010). It can be speculated from the present study that, based on shoot P concentration, P uptake by both root hairs and R. intraradices was conducive to an increase in gas exchange.…”

Section: Discussionmentioning

confidence: 49%

Relative importance of an arbuscular mycorrhizal fungus (Rhizophagus intraradices) and root hairs in plant drought tolerance

et al. 2014

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Both arbuscular mycorrhizal (AM) fungi and root hairs play important roles in plant uptake of water and mineral nutrients. To reveal the relative importance of mycorrhiza and root hairs in plant water relations, a bald root barley (brb) mutant and its wild type (wt) were grown with or without inoculation of the AM fungus Rhizophagus intraradices under well-watered or drought conditions, and plant physiological traits relevant to drought stress resistance were recorded. The experimental results indicated that the AM fungus could almost compensate for the absence of root hairs under drought-stressed conditions. Moreover, phosphorus (P) concentration, leaf water potential, photosynthetic rate, transpiration rate, stomatal conductance, and water use efficiency were significantly increased by R. intraradices but not by root hairs, except for shoot P concentration and photosynthetic rate under the drought condition. Root hairs even significantly decreased root P concentration under drought stresses. These results confirm that AM fungi can enhance plant drought tolerance by improvement of P uptake and plant water relations, which subsequently promote plant photosynthetic performance and growth, while root hairs presumably contribute to the improvement of plant growth and photosynthetic capacity through an increase in shoot P concentration.

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Section: Discussionmentioning

confidence: 49%

Relative importance of an arbuscular mycorrhizal fungus (Rhizophagus intraradices) and root hairs in plant drought tolerance

et al. 2014

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“…Mycorrhizing decrease role of salt in chlorophyll synthesis (Giri and Mukerji, 2004). In Glomus etunicatum inoculated maize plant, increase in photosynthesis speed, transpiration and chlorophyll a, b density was reported under cold stress (Zhu et al, 2010). Also in Jatropha curcas mycorrhizal plants higher chlorophyll were reported than non-mycorrhizal plants under salt stress conditions (Ashwani et al, 2010).…”

Section: Chlorophyll Contentmentioning

confidence: 99%

Arbuscular mycorrhizal symbiosis and alleviation of salinity stress

Aggarwal

Kadian

Karishma

et al. 2012

JANS

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Several environmental factors adversely affect plant growth and development and final yield performance of a crop. Drought, salinity, nutrient imbalances (including mineral toxicities and deficiencies) and extremes of temperature are among the major environmental constraints to crop productivity worldwide. Development of crop plants with stress tolerance, however, requires, among others, knowledge of the physiological mechanisms and genetic controls of the contributing traits at different plant developmental stages. In the past two decades, biotechnology research has provided considerable insights into the mechanism of biotic stress tolerance in plants at the molecular level. Furthermore, different abiotic stress factors may provoke osmotic stress, oxidative stress and protein denaturation in plants, which lead to similar cellular adaptive responses such as accumulation of compatible solutes, induction of stress proteins, and acceleration of reactive oxygen species scavenging systems. Recently, various methods are adapted to improve plant tolerance to salinity injury through either chemical treatments (plant hormones, minerals, amino acids, quaternary ammonium compounds, polyamines and vitamins) or biofertilizers treatments (Asymbiotic nitrogen-fixing bacteria, symbiotic nitrogen-fixing bacteria) or enhanced a process used naturally by plants (mycorrhiza) to minimise the movement of Na+ to the shoot. Proper management of Arbuscular Mycorrhizal Fungi (AMF) has the potential to improve the profitability and sustainability of salt tolerance. In this review article, the discussion is restricted to the mycorrhizal symbiosis and alleviation of salinity stress.

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“…When maize plants were subject to low temperature stress, AM symbiosis could enhance stressed tolerance of maize plants via alterations in host water status, carbohydrate, protein, antioxidant enzyme activities (Zhu et al 2009(Zhu et al , 2010. However, other studies observed that the mycorrhizal benefit for the host plant (e.g.…”

mentioning

confidence: 99%

Mycorrhizal efficacy of trifoliate orange seedlings on alleviating temperature stress

Wu¹

2011

PLANT SOIL ENVIRON

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Citrus plants often suffer from temperature stress, which seriously inhibits tree growth and even results in tree death. The present experiment was conducted to evaluate the effects of Glomus mosseae on growth, root morphology, superoxide dismutase (SOD) and catalase (CAT) activities, and soluble protein content of trifoliate orange (Poncirus trifoliata) seedlings at low (15°C), optimum (25°C) and high (35°C) temperatures. Sixty-eight days after temperature stresses, mycorrhizal colonization and number of both entry points and vesicles were significantly inhibited by low or high temperature. Mycorrhizal seedlings recorded significantly higher growth characteristics than non-mycorrhizal seedlings at both optimum and high temperatures, but the beneficial effects were almost lost at low temperature. Generally, mycorrhizal seedlings presented notably higher root traits (projected area, surface area, number of forks and volume) than non-mycorrhizal seedlings regardless of temperature levels. Mycorrhizal colonization significantly increased SOD and CAT activities and soluble protein content at high temperature, increased only SOD activity at optimum temperature, and decreased only soluble protein content at low temperature. It suggests that mycorrhizal alleviation of temperature stress in trifoliate orange seedlings was at high temperature, but the alleviation was obviously weakened at low temperature.

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Arbuscular mycorrhizae improves low temperature stress in maize via alterations in host water status and photosynthesis

Cited by 184 publications

References 38 publications

Relative importance of an arbuscular mycorrhizal fungus (Rhizophagus intraradices) and root hairs in plant drought tolerance

Relative importance of an arbuscular mycorrhizal fungus (Rhizophagus intraradices) and root hairs in plant drought tolerance

Arbuscular mycorrhizal symbiosis and alleviation of salinity stress

Mycorrhizal efficacy of trifoliate orange seedlings on alleviating temperature stress

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