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Impacts of Paraburkholderia Phytofirmans Strain Psjn on Tomato

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Impacts of Paraburkholderia Phytofirmans Strain Psjn on Tomato Impacts of Paraburkholderia phytofirmans Strain PsJN on Tomato (Lycopersicon esculentum L.) Under High Temperature Alaa Issa, Qassim Esmaeel, Lisa Sanchez, Barbara Courteaux, Jean-Francois Guise, Yves Gibon, Patricia Ballias, Christophe Clément, Cedric Jacquard, Nathalie Vaillant-Gaveau, et al. To cite this version: Alaa Issa, Qassim Esmaeel, Lisa Sanchez, Barbara Courteaux, Jean-Francois Guise, et al.. Impacts of Paraburkholderia phytofirmans Strain PsJN on Tomato (Lycopersicon esculentum L.) Under High Temperature. Frontiers in Plant Science, Frontiers, 2018, 9, pp.1397. 10.3389/fpls.2018.01397. hal- 02620887 HAL Id: hal-02620887 https://hal.inrae.fr/hal-02620887 Submitted on 26 May 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributed under a Creative Commons Attribution| 4.0 International License fpls-09-01397 October 16, 2018 Time: 14:57 # 1 ORIGINAL RESEARCH published: 18 October 2018 doi: 10.3389/fpls.2018.01397 Impacts of Paraburkholderia phytofirmans Strain PsJN on Tomato (Lycopersicon esculentum L.) Under High Temperature Alaa Issa1, Qassim Esmaeel1, Lisa Sanchez1, Barbara Courteaux1, Jean-Francois Guise1, Yves Gibon2, Patricia Ballias2, Christophe Clément1, Cédric Jacquard1, Nathalie Vaillant-Gaveau1 and Essaïd Aït Barka1* 1 SFR Condorcet FR CNRS 3417, Unité de Recherche Résistance Induite et BioProtection des Plantes, UFR Sciences Exactes et Naturelles, Université de Reims Champagne-Ardenne, Reims, France, 2 UMR 1332 Biologie du Fruit et Pathologie, INRA, Villenave-d’Ornon, France Abnormal temperatures induce physiological and biochemical changes resulting in the loss of yield. The present study investigates the impact of the PsJN strain of Paraburkholderia phytofirmans on tomato (Lycopersicon esculentum Mill.) in response Edited by: to heat stress (32◦C). The results of this work showed that bacterial inoculation with Ivan Baccelli, Consiglio Nazionale delle Ricerche P. phytofirmans strain PsJN increased tomato growth parameters such as chlorophyll ◦ (CNR), Italy content and gas exchange at both normal and high temperatures (25 and 32 C). At ◦ Reviewed by: normal temperature (25 C), the rate of photosynthesis and the photosystem II activity Bernardo González, increased with significant accumulations of sugars, total amino acids, proline, and Adolfo Ibáñez University, Chile Mayank Anand Gururani, malate in the bacterized tomato plants, demonstrating that the PsJN strain had a United Arab Emirates University, positive effect on plant growth. However, the amount of sucrose, total amino acids, United Arab Emirates proline, and malate were significantly affected in tomato leaves at 32◦C compared to *Correspondence: ◦ Essaïd Aït Barka that at 25 C. Changes in photosynthesis and chlorophyll fluorescence showed that ◦ [email protected] the bacterized tomato plants were well acclimated at 32 C. These results reinforce the current knowledge about the PsJN strain of P. phytofirmans and highlight in particular Specialty section: This article was submitted to its ability to alleviate the harmful effects of high temperatures by stimulating the growth Plant Microbe Interactions, and tolerance of tomato plants. a section of the journal Frontiers in Plant Science Keywords: Paraburkholderia phytofirmans strain PsJN, high temperature, chlorophyll fluorescence, gas exchange, tomato (Lycopersicon esculentum L.) Received: 06 June 2018 Accepted: 03 September 2018 Published: 18 October 2018 Citation: INTRODUCTION Issa A, Esmaeel Q, Sanchez L, Courteaux B, Guise J-F, Gibon Y, The biggest challenge facing the world at present is climate change as it will affect the geographical Ballias P, Clément C, Jacquard C, distribution of vegetation types, ecosystem processes, primary production, and abundance of plant Vaillant-Gaveau N and Aït Barka E species (Malcolm et al., 2006; Lesk et al., 2016). High temperature is a main environmental factor (2018) Impacts of Paraburkholderia that often limits the growth and productivity of important crop species and also lead to a great phytofirmans Strain PsJN on Tomato (Lycopersicon esculentum L.) Under Abbreviations: Ci, intercellular CO2 concentration; Tr, transpiration rate; Fv/Fm, maximum efficiency of PSII; gw, High Temperature. stomatal conductance; P. phytofirmans PsJN, Paraburkholderia phytofirmans strain PsJN; PGPR, plant growth-promoting Front. Plant Sci. 9:1397. rhizobacteria; Pn, net photosynthesis; PSII, photosystem II; RbcL, RuBisCO large subunit; RbcS, RuBisCO small subunit; doi: 10.3389/fpls.2018.01397 RuBisCO, ribulose-1,5-bisphosphate carboxylase/oxygenase; PSII, effective quantum yield of PSII. Frontiers in Plant Science| www.frontiersin.org 1 October 2018| Volume 9| Article 1397 fpls-09-01397 October 16, 2018 Time: 14:57 # 2 Issa et al. Impacts of P. phytofirmans on Tomato extent a series of morphological, biochemical, and physiological (Frommel et al., 1991). As an endophyte, the PsJN strain of changes (Wahid et al., 2007; Barnabás et al., 2008). Rising P. phytofirmans contributes to the fitness and development of temperature can cause a change in growth periods and crops, the plants, presenting beneficial traits that can be exploited leading to a high risk of survival of specific species (Mendelsohn in agricultural biotechnology (Ait Barka et al., 2000, 2002, et al., 2016). High temperatures may benefit some crops but harm 2006; Compant et al., 2005b; Miotto-Vilanova et al., 2016; Su others owing to the increased evapotranspiration and thermal et al., 2016; Timmermann et al., 2017). The PsJN strain of damage. In general, plants can develop different adaptation P. phytofirmans is capable of colonizing the rhizosphere and mechanisms to avoid heat stress (Bita and Gerats, 2013). To several organs of several plant species (Compant et al., 2011), satisfy the demand for food, it is necessary to develop crops and induces resistance to biotic stress (Ait Barka et al., 2000, with high resistance to heat stress. Extreme temperature is one 2002; Pinedo et al., 2015; Miotto-Vilanova et al., 2016; Su of the most severe and damaging environmental factors that et al., 2017). In addition, the PsJN strain of P. phytofirmans affect the integrity of plant cells. The increase in temperature can improve the performance of plants under abiotic stress adversely affects the quantity and quality of all plant species, through a series of physiological and biochemical changes. including tomatoes (Rodriguez-Ortega et al., 2016). The exposure Under stress due to drought, P. phytofirmans strain PsJN has of plants to long- or short-term high temperatures has a significant effects on agronomic and physiological parameters negative impact on the fruits by altering specific physiological such as shoot and root biomass, chlorophyll content, gas processes in male reproductive development (Sato et al., 2000, exchange, photochemical efficiency (Fv/Fm), and maize and 2006) and reducing crop production (Mohammed and Tarpley, wheat yield (Naveed et al., 2014a,b). In addition, in short-term 2011). and constant salt stress, Pinedo et al.(2015) have reported Photosynthesis is one of the key physiological heat-sensitive that Arabidopsis thaliana plants bacterized with the PsJN processes in plants affected by thermal stress and can be strain have significantly improved the number of siliques, fresh completely inhibited before any other symptom is detected weight, plant height, and proline content. When potato plants (Berry and Bjorkman, 1980; Camejo et al., 2005). Photosynthesis (Solanum tuberosum L.) were inoculated with the PsJN strain, is mainly affected by the reduction of foliar expansion, the they showed a greater number of tubers and tuber weight inadequate functioning of the photosynthetic machinery, and under heat stress (Bensalim et al., 1998). In grapevine seedlings leaf senescence (Wahid et al., 2007; Gururani et al., 2015a,b). (Vitis vinifera L.), Ait Barka et al.(2006) found that the PsJN High temperatures damage the process of photosynthesis by strain improved the photosynthetic activity and the level of altering the photosynthetic pigments (Camejo et al., 2006), photosynthesis, the growth of the plant, and the biomass at reducing the activity of the PSII (Camejo et al., 2005), and 4◦C. The grapevine seedlings showed a balance of carbohydrates damaging the regeneration capacity of RuBP (Wise et al., 2004). favorable to cold tolerance and also significantly improved Yamori et al.(2014) reported that the photosynthetic reactions the levels of starch, proline, and phenolics (Fernandez et al., in C3 plants showed a higher temperature homeostasis than 2012). photosynthesis under high growth temperatures. The same The consequences of abiotic stress on pigments, electron authors reported that C3 plants generally have a greater capacity transport systems, photosystems, enzymatic activities related to of acclimatization of the temperature of photosynthesis in a photosynthesis, fluorescence of chlorophyll, and gas exchange wide range of temperatures: CAM plants acclimated the day in plants have been reported. However, these studied (Wise and night photosynthetic
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