Improved photosynthetic efficacy of maize ( Zea mays ) plants with arbuscular mycorrhizal fungi (AMF) under high temperature stress

Mathur, Sonal; Sharma, Mahaveer P.; Jajoo, Anjana

doi:10.1016/j.jphotobiol.2018.02.002

Cited by 182 publications

(80 citation statements)

References 36 publications

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“…Here, chlorophyll content was higher in mycorrhizal plants. Increased chlorophyll content in the leaves of mycorrhizal plant [87] indicates higher nitrogen content [88]. While photosynthetic activity and nitrogen content are generally positively correlated with SLA [89], we observed that when mycorrhized, plants decrease SLA levels.…”

Section: Interactive Effects Of Ja and Am Fungi On Plant Growth And Rmentioning

confidence: 53%

Mycorrhizal Fungi Enhance Resistance to Herbivores in Tomato Plants with Reduced Jasmonic Acid Production

Formenti

Rasmann

2019

Agronomy

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Arbuscular mycorrhizal (AM) fungi favor plant growth by improving nutrient acquisition, but also by increasing their resistance against abiotic and biotic stressors, including herbivory. Mechanisms of AM fungal mediated increased resistance include a direct effect of AM fungi on plant vigor, but also a manipulation of the hormonal cascades, such as the systemic activation of jasmonic acid (JA) dependent defenses. However, how AM fungal inoculation and variation in the endogenous JA production interact to produce increased resistance against insect herbivores remains to be further elucidated. To address this question, three genotypes of Solanum lycopersicum L., a JA-biosynthesis deficient mutant, a JA over-accumulating mutant, and their wild-type were either inoculated with AM fungi or left un-inoculated. Plant growth-related traits and resistance against Spodoptera littoralis (Boisduval) caterpillars, a major crop pest, were measured. Overall, we found that deficiency in JA production reduced plant development and were the least resistant against S. littoralis. Moreover, AM fungi increased plant resistance against S. littoralis, but such beneficial effect was more pronounced in JA-deficient plant than on JA over-accumulating plants. These results highlight that AM fungi-driven increased plant resistance is negatively affected by the ability of plants to produce JA and that AM fungi complement JA-mediated endogenous plant defenses in this system.

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Section: Interactive Effects Of Ja and Am Fungi On Plant Growth And Rmentioning

confidence: 53%

Mycorrhizal Fungi Enhance Resistance to Herbivores in Tomato Plants with Reduced Jasmonic Acid Production

Formenti

Rasmann

2019

Agronomy

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“…We observed that the decrease in photosynthesis caused by HT was accompanied by damage to the chloroplast and other organellar structures (Figure 4). Structural damage takes a long time to repair or may be irreparable, and damaged leaves cannot be replaced by newly grown leaves after Mathur et al, 2018;Ruiz-Vera et al, 2015;Sinsawat et al, 2004;Tiwari & Yadav, 2019;Yang, Huang, et al, 2017;Yang, Ma, et al, 2017). However, the detailed mechanism of HT damage to the photosynthetic apparatus in maize leaves has not been analysed systematically under field conditions.…”

Section: Discussionmentioning

confidence: 99%

“…Photosynthesis is not only the basis of yield (Long, Marshall-Colon, & Zhu, 2015;Murchie, Pinto, & Horton, 2009;Parry et al, 2010;Wu, Hammer, Doherty, Caemmerer, & Farquhar, 2019), but is also highly sensitive to HT (Gao, Guo, Dai, Sun, & Bai, 2011;Mathur, Agrawal, & Jajoo, 2014;Mathur, Sharma, & Jajoo, 2018;Mittler, 2006;Sinsawat, Leipner, Stamp, & Fracheboud, 2004;Yang et al, 2015). Exposure of leaves to HT and strong light simultaneously seriously damages the photosynthetic apparatus (Carmo-Silva & Salvucci, 2012;Li, Cheng, Gao, Jiang, & Peng, 2009;Sharma, Andersen, Ottosen, & Rosenqvist, 2015;Yang, Liang, & Lu, 2005;Yang et al, 2007).…”

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confidence: 99%

“…Exposure of leaves to HT and strong light simultaneously seriously damages the photosynthetic apparatus (Carmo-Silva & Salvucci, 2012;Li, Cheng, Gao, Jiang, & Peng, 2009;Sharma, Andersen, Ottosen, & Rosenqvist, 2015;Yang, Liang, & Lu, 2005;Yang et al, 2007). HT reduces photosynthetic carbon assimilation rate (Killi, Bussotti, Raschi, & Haworth, 2017;Ruiz-Vera, Siebers, Drag, Ort, & Bernacchi, 2015;Yadav et al, 2016), restricts photosynthetic electron transfer (Ruiz-Vera et al, 2015;Sinsawat et al, 2004) and aggravates oxidative damage (Gong, Li, & Chen, 1998;Sinsawat et al, 2004;Yadav et al, 2018;Yang, Huang, Ding, Lu, & Lu, 2017;Yang, Ma, et al, 2017) and photoinhibition of photosystem II (PSII; Mathur et al, 2018;Yadav et al, 2016Yadav et al, , 2018, decreasing yield in maize. However, the specific mechanism and primary site of damage to photosynthetic apparatus by HT remain unclear.…”

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confidence: 99%

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High temperature reduces photosynthesis in maize leaves by damaging chloroplast ultrastructure and photosystem II

Ren

et al. 2020

J Agronomy Crop Science

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Global warming has increased the frequency and duration of high temperature (HT) stress. Photosynthesis determines yield in maize and is extremely HT sensitive. The effects of HT on photosynthesis in maize leaves have been strongly examined under controlled conditions. Here, to explore the mechanism and primary inhibitory sites of HT to photosynthesis, the HT sensitivity of photosynthesis in XY335 and ZD958 maize hybrids was systematically studied in field by multiple methods. HT decreased leaf area and photosynthetic rate of unit leaf area and hence limited growth. HT disrupted chloroplast and mitochondrial membrane structure, possibly delaying photosynthetic recovery after HT. These changes were greater in XY335 than ZD958. Stomatal conductance decreased significantly under HT, and this did not restrict CO2 fixation but may weaken the heat dissipation through transpiration. HT caused photoinhibition of PSII but not PSI. HT damaged both the oxygen‐evolving complex, located at donor side of PSII, and electron transfer from QA to QB, located at acceptor side of PSII. Interference of electron transfer from QA to QB caused by degradation of QB‐binding (D1) protein was the primary site of PSII inhibition by HT in maize leaves. The different stomatal behaviour and photoinhibition sites under HT between maize and wheat were discussed.

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“…Under natural environments, plants are exposed to various environmental stresses simultaneously, e.g., changes in temperature, light spectrum and intensity, and various com-binations of macro-and micronutrients deficiency (Goltsev et al 2012(Goltsev et al , 2016Mathur et al 2016Mathur et al , 2018Kalaji et al 2018). Nutrients availability in growth medium is among the most important factors that affect plant growth and development.…”

Section: Introductionmentioning

confidence: 99%

Special issue in honour of Prof. Reto J. Strasser - Structural and functional response of photosynthetic apparatus of radish plants to iron deficiency

Samborska-Skutnik¹,

Kalaji²,

Sieczko³

et al. 2020

Photosynt.

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In this work, we tried to identify some specific chlorophyll a fluorescence (ChlF) parameters, that could enable detection of iron deficiency (Fedef) in radish plants (Raphanus sativus L.), before any visual symptoms appear. Changes in ChlF kinetics, JIP-test parameters, and chlorophyll content revealed that iron deficiency negatively affected PSII activity mainly via disruption of light absorption in light-harvesting complexes and by decreasing the activity of the primary quinone acceptor of PSII (Q A). Iron deficiency was clearly reflected in the changes of some JIP-test parameters, such as time to reach maximal fluorescence (FM), Area, normalized total area under the OJIP curve, and number of QA redox turnovers until FM is reached. The visible symptoms of Fedef appeared after 7 d of stress application, while ChlF measurements allowed us to detect iron deficiency during 1-3 d. Our results suggest that analysis of ChlF signals has a high potential for early detection of iron deficiency in radish plants.

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Improved photosynthetic efficacy of maize ( Zea mays ) plants with arbuscular mycorrhizal fungi (AMF) under high temperature stress

Cited by 182 publications

References 36 publications

Mycorrhizal Fungi Enhance Resistance to Herbivores in Tomato Plants with Reduced Jasmonic Acid Production

Mycorrhizal Fungi Enhance Resistance to Herbivores in Tomato Plants with Reduced Jasmonic Acid Production

High temperature reduces photosynthesis in maize leaves by damaging chloroplast ultrastructure and photosystem II

Special issue in honour of Prof. Reto J. Strasser - Structural and functional response of photosynthetic apparatus of radish plants to iron deficiency

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