Hongos ectomicorrícicos y la tolerancia a la salinidad en plantas

Aguilar-Aguilar, Selene; Pérez‐Moreno, Jesús; Ferrera‐Cerrato, Ronald; Grimaldo-Juarez, Onecimo; Cervantes-Díaz, Lourdes; González-Mendoza, Daniel

doi:10.4067/s0716-078x2009000100011

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…The interactions between soil, plant roots, and different soil microbes play important roles in regulating metal movement from soil to edible parts of crops and may represent this way an important tool to increase the uptake of required essential elements and/or to decrease the uptake of toxic metals by the plants in soils with unbalanced metal concentrations (e.g., Islam et al 2007;Ma et al 2009; reviewed by Burleigh and Bechmann 2002;Hall 2002;Aguilar-Aguilar et al 2009;Lemanceau et al 2009;Wenzel 2009). Similarly, the way of irrigation and of course fertilization may also influence metal uptake by plants and their distribution between shoots and roots (Singh and Sinha 2005;Gupta and Sinha 2006;Nair et al 2008); therefore, it should be considered in sustainable agricultural practice.…”

Section: Discussionmentioning

confidence: 99%

Soil metals, chloroplasts, and secure crop production: a review

Solymosi

Bertrand²

2011

Agron. Sustain. Dev.

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with unbalanced metal concentrations are used worldwide for crop cultivation. Even though plants are able to develop strategies to cope with metal stress, either metal deficiency or excess, this unbalance affects the whole plant. Chloroplasts are key organelles for organic matter synthesis and biomass production. Under metal stress, chloroplasts suffer severe alterations of their ultrastructure, associated with profound molecular and metabolic damages. These alterations are accompanied by unbalanced metal distribution in plants, in particular in edible crop organs. Toxic metals get either accumulated or there is a deficiency of nutrients, resulting in a weak nutritional value. Nonetheless, there is more and more knowledge on the functioning and regulation of metal transporters in plants. Such knowledge will allow growing crops with well-balanced metal concentrations in edible parts even on metal unbalanced soils. This review shows that almost all vital functions of chloroplasts, such as photosynthesis, CO 2 fixation, nitrogen and sulfur assimilation, and protein and nucleic acid metabolism, require metals. Therefore, the uptake of essential metals is necessary for the proper functioning of chloroplasts and, in turn, for crop productivity. We describe nutrient uptake mechanisms of plants and processes that influence essential and non-essential metal concentrations in different plant organs. We present an overview of metal transporters in chloroplasts. Several questions still need to be elucidated about the uptake and the trafficking of essential and non-essential metals into and within chloroplasts. Similarly to transporters present in other cellular compartments, the carriers are often not metal-specific. Therefore, essential and non-essential metals may compete for carriers. As a result, unbalanced soil metal concentrations can be reflected in the plants and in the chloroplasts. Metal deficiency or excess causes reduced growth and decreased productivity of crops. It can lead to human malnutrition. Several complex physiological processes can be responsible for the reduced biomass observed in plants with unbalanced metal concentration. In this review, we have focused on the structural and functional alterations of chloroplasts under metal deficiency or excess. Interestingly, besides specific differences, our data indicate several similarities in the response of chloroplasts to metal deficiency or excess. Indeed, oxidative stress and several ultrastructural alterations, e.g., increase in the number and size of plastoglobuli, disorganized grana and disturbed thylakoids, and swelling of the intrathylakoidal space, are observed in both cases. This indicates that changes in chloroplast ion homeostasis rather than the specific effect of a metal are responsible for decreased plant productivity. Therefore, sustainable agriculture has to take into consideration solutions that enable undisturbed metal and ion homeostasis in chloroplasts of crop plants grown even in soils with unbalanced metal concentrations.Abstract An incr...

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Section: Discussionmentioning

confidence: 99%

Soil metals, chloroplasts, and secure crop production: a review

Solymosi

Bertrand²

2011

Agron. Sustain. Dev.

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“…Also, similar findings were mentioned by Bano and Fatima (2009) on Zea Maize, Karlidag et al (2013) on strawberry and Ullah et al (2016) on tomato, who observed that PGPR decreased EL in cells of plants suffer from salinity stress. Among the roles of biofertilizers (particularly AM) as salinity alleviation treatment used in this study is to enhance the synthesis of antioxidant enzymes (Aguilar-Aguilar et al, 2009) and also increase their activity (Heikham et al, 2009) for scavenging of ROS. Also, Rady et al (2016) found that application of organo-mineral fertilizer compost significantly reduced EL in bean plants which grown in saline soil.…”

Section: -Electrolyte Leakage (El)mentioning

confidence: 99%

Alleviation Salinity Stress On Tomato Plants By Some Organic and Bio-Fertilizers Application

Malash

Khalil

Midan

et al. 2023

Menoufia Journal of Plant Production

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A pot experiment was carried out in two summer seasons of 2020 and 2021, to study the effect of organic {compost (COM) and humic acid (HA)} and biological {arbuscular mycorrhizal (AM) and plant growth promotion rizobacteria (PGPB)} fertilization on mitigation salinity hazard of tomato plants. Saline solutions were prepared by using NaCl to induce an EC of 3 and 6 dSm -1 , in addition to tap water (0.56 dSm -1 ) as a control. Data on plant growth and development, and leaf water, mineral and chemical contents, and fruit yield and quality were determined. Comparable to un-saline treatment (tap water), salinity (at 3.00 and 6.00 dSm -1 ) decreased plant growth, fruit set (%), water, and mineral nutrition contents in leaves, as well as fruit yield. However, salinity increased water use efficiency, leaf proline content, electrolyte leakage in leaves, and fruit contents of TSS and Vit.C. Also, salinity enhanced Na and Cl contents in all leaves, particularly old ones. Treatments of alleviation salinity all mitigated salinity detrimental effect as they enhanced growth, fruit set (%), water, N, P, K and Ca contents in leaves as well as fruit yield. Also, these treatments reduced Na and Cl contents in both young and old leaves particularly in former ones, beside leaf proline content and leaf electrolyte leakage. The combined treatments i.e., AM+PGPR and COM+HA both seems to be of a synergistic effect as they were the most effective treatments in terms of alleviation salinity hazards on plants followed by AM and COM applied alone.

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“…6 "Los hongos ectomicorrícicos son organismos que proporcionan amplios beneficios a la planta, debido a una compleja red de mecanismos que le confieren la capacidad de suministrar nutrientes y crecer en ambientes salinos, en plantas que habitan los bosques templados o boreales" (Aguilar et al 2009:1) 7 "El cepario de INECOL fue fundado en 1982 y está registrado en el World Data Centre for Microorganisms con el número 782 y las siglas IE". (Mata et al, 2016: 697).…”

Section: Investigación Fúngica En Méxicounclassified

Dilemas en la construcción de redes de conocimiento entre investigadores del Colegio de Postgraduados y productores de huitlacoche en el Valle de Puebla

Canchola¹

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This research locates and analyzes the strategies generated by the Public Research Center of the Postgraduate College, Campus, Puebla to link with social groups in its environment to transmit a process of biotechnological innovation. The Huitlacoche, unique food in the world, represents the combination of an edible mushroom and the corn plant, a basic and emblematic food for the agri-food system of our country, which has traditional knowledge for use in food and health. It is obtained and consumed in the rainy season. Exotic product, with commercial importance in European countries. Despite its commercialization potential, it is not a profitable product for local producers. The Public Research Center presented an important advance in biotechnology for the production of huitlacoche in a controlled way, and to encourage collaboration, it proposed the Linking Strategy: "Controlled production of huitlacoche" to be developed with producers in the Puebla Valley and contribute to the transmission of technology to form regional spaces of knowledge and social inclusion. The approach of networks and knowledge flows served to locate processes, build interactions and the type of exchange between academia and productive sectors. The methodology was of a mixed type: qualitative and quantitative, with interviews and the use of UNICET 6 software. It is concluded that the linkage and production strategies proposed by the Center of were effective, since they generated in the Puebla Valley producers high expectations of technical and economic improvement, but the organization within the public research center and the prevailing political and economic conditions In the context, they led to this project not having the expected results, it did not cover the needs and problems existing in the surrounding rural communities. The general result is that in the first stage a collaboration network was formed, which as the linking strategy progressed was interrupted as there was no common objective to follow. These are the dilemmas of building knowledge networks.

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Hongos ectomicorrícicos y la tolerancia a la salinidad en plantas

Cited by 5 publications

References 23 publications

Soil metals, chloroplasts, and secure crop production: a review

Soil metals, chloroplasts, and secure crop production: a review

Alleviation Salinity Stress On Tomato Plants By Some Organic and Bio-Fertilizers Application

Dilemas en la construcción de redes de conocimiento entre investigadores del Colegio de Postgraduados y productores de huitlacoche en el Valle de Puebla

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