The usage of silicon fertilisation in order to mitigate the oxidative stress and to improve the resilience of barley subjected to drought
Authors
Golob, AleksandraOjdanič, Nik
Živanović, Bojana

Germ, Mateja
Milić Komić, Sonja

Sedlarević Zorić, Ana

Milić, Dejana
Pantelić, Ana
Mavrič Čermelj, Anja
Samardžić, Jelena
Veljović-Jovanović, Sonja

Vidović, Marija

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Drought causes huge agricultural and economic losses worldwide. Silicon (Si) is considered a
beneficial element for plants. It mitigates stress caused by salinity, drought, and high and low temperatures
by promoting antioxidant production. However, the underlying mechanisms are still not
elucidated. We investigated Si fertilisation effect on photosynthetic parameters, trichome number,
leaf optical properties, as well as profiles of amino acids and polyphenols in barley exposed to
water shortage. Silicon was applied in three growth stages: (i) before the flag leaf emergence;
(ii) prior to the grain filling phase; (iii) at the grain filling phase start. Drought negatively impacts
photochemical efficiency, stomatal conductance, photosynthetic pigment content, and leaf reflective
and transmissive properties. Si application between flag leaf emergence and grain filling
had the strongest effect on light reflectance. Among all analyzed phenolics, saponarin was the
most abundant in a...ll samples, irrespective of water regime and Si supply. Caffeoyl ester was the
only hydroxycinnamic acid showing significant accumulation with the latest applied Si compared
to no added Si upon drought. The major amino acids in barley leaves were glutamate, glutamine,
aspartate, asparagine, and serine. Aspartate content was the highest in leaves exposed to drought
without Si addition, while lysine was the most accumulated in the leaves supplemented by Si at
the grain filling phase start. Proline was 2.5 times more abundant in the leaves exposed to drought
regardless of Si treatment. Taken together, although Si did not mitigate drought stress effects, its
effect was dependent on the barley growth phase prior to supplementation.
Keywords:
amino acids / proline / polyphenols / optic leaf properties / photosynthesisSource:
Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade, 2022, 67-Publisher:
- Serbian Plant Physiology Society
- Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade
- Faculty of Biology, University of Belgrade
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Institution/Community
Institut za multidisciplinarna istraživanjaTY - CONF AU - Golob, Aleksandra AU - Ojdanič, Nik AU - Živanović, Bojana AU - Germ, Mateja AU - Milić Komić, Sonja AU - Sedlarević Zorić, Ana AU - Milić, Dejana AU - Pantelić, Ana AU - Mavrič Čermelj, Anja AU - Samardžić, Jelena AU - Veljović-Jovanović, Sonja AU - Vidović, Marija PY - 2022 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1872 AB - Drought causes huge agricultural and economic losses worldwide. Silicon (Si) is considered a beneficial element for plants. It mitigates stress caused by salinity, drought, and high and low temperatures by promoting antioxidant production. However, the underlying mechanisms are still not elucidated. We investigated Si fertilisation effect on photosynthetic parameters, trichome number, leaf optical properties, as well as profiles of amino acids and polyphenols in barley exposed to water shortage. Silicon was applied in three growth stages: (i) before the flag leaf emergence; (ii) prior to the grain filling phase; (iii) at the grain filling phase start. Drought negatively impacts photochemical efficiency, stomatal conductance, photosynthetic pigment content, and leaf reflective and transmissive properties. Si application between flag leaf emergence and grain filling had the strongest effect on light reflectance. Among all analyzed phenolics, saponarin was the most abundant in all samples, irrespective of water regime and Si supply. Caffeoyl ester was the only hydroxycinnamic acid showing significant accumulation with the latest applied Si compared to no added Si upon drought. The major amino acids in barley leaves were glutamate, glutamine, aspartate, asparagine, and serine. Aspartate content was the highest in leaves exposed to drought without Si addition, while lysine was the most accumulated in the leaves supplemented by Si at the grain filling phase start. Proline was 2.5 times more abundant in the leaves exposed to drought regardless of Si treatment. Taken together, although Si did not mitigate drought stress effects, its effect was dependent on the barley growth phase prior to supplementation. PB - Serbian Plant Physiology Society PB - Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade PB - Faculty of Biology, University of Belgrade C3 - Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade T1 - The usage of silicon fertilisation in order to mitigate the oxidative stress and to improve the resilience of barley subjected to drought SP - 67 UR - https://hdl.handle.net/21.15107/rcub_rimsi_1872 ER -
@conference{ author = "Golob, Aleksandra and Ojdanič, Nik and Živanović, Bojana and Germ, Mateja and Milić Komić, Sonja and Sedlarević Zorić, Ana and Milić, Dejana and Pantelić, Ana and Mavrič Čermelj, Anja and Samardžić, Jelena and Veljović-Jovanović, Sonja and Vidović, Marija", year = "2022", abstract = "Drought causes huge agricultural and economic losses worldwide. Silicon (Si) is considered a beneficial element for plants. It mitigates stress caused by salinity, drought, and high and low temperatures by promoting antioxidant production. However, the underlying mechanisms are still not elucidated. We investigated Si fertilisation effect on photosynthetic parameters, trichome number, leaf optical properties, as well as profiles of amino acids and polyphenols in barley exposed to water shortage. Silicon was applied in three growth stages: (i) before the flag leaf emergence; (ii) prior to the grain filling phase; (iii) at the grain filling phase start. Drought negatively impacts photochemical efficiency, stomatal conductance, photosynthetic pigment content, and leaf reflective and transmissive properties. Si application between flag leaf emergence and grain filling had the strongest effect on light reflectance. Among all analyzed phenolics, saponarin was the most abundant in all samples, irrespective of water regime and Si supply. Caffeoyl ester was the only hydroxycinnamic acid showing significant accumulation with the latest applied Si compared to no added Si upon drought. The major amino acids in barley leaves were glutamate, glutamine, aspartate, asparagine, and serine. Aspartate content was the highest in leaves exposed to drought without Si addition, while lysine was the most accumulated in the leaves supplemented by Si at the grain filling phase start. Proline was 2.5 times more abundant in the leaves exposed to drought regardless of Si treatment. Taken together, although Si did not mitigate drought stress effects, its effect was dependent on the barley growth phase prior to supplementation.", publisher = "Serbian Plant Physiology Society, Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Faculty of Biology, University of Belgrade", journal = "Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade", title = "The usage of silicon fertilisation in order to mitigate the oxidative stress and to improve the resilience of barley subjected to drought", pages = "67", url = "https://hdl.handle.net/21.15107/rcub_rimsi_1872" }
Golob, A., Ojdanič, N., Živanović, B., Germ, M., Milić Komić, S., Sedlarević Zorić, A., Milić, D., Pantelić, A., Mavrič Čermelj, A., Samardžić, J., Veljović-Jovanović, S.,& Vidović, M.. (2022). The usage of silicon fertilisation in order to mitigate the oxidative stress and to improve the resilience of barley subjected to drought. in Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade Serbian Plant Physiology Society., 67. https://hdl.handle.net/21.15107/rcub_rimsi_1872
Golob A, Ojdanič N, Živanović B, Germ M, Milić Komić S, Sedlarević Zorić A, Milić D, Pantelić A, Mavrič Čermelj A, Samardžić J, Veljović-Jovanović S, Vidović M. The usage of silicon fertilisation in order to mitigate the oxidative stress and to improve the resilience of barley subjected to drought. in Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade. 2022;:67. https://hdl.handle.net/21.15107/rcub_rimsi_1872 .
Golob, Aleksandra, Ojdanič, Nik, Živanović, Bojana, Germ, Mateja, Milić Komić, Sonja, Sedlarević Zorić, Ana, Milić, Dejana, Pantelić, Ana, Mavrič Čermelj, Anja, Samardžić, Jelena, Veljović-Jovanović, Sonja, Vidović, Marija, "The usage of silicon fertilisation in order to mitigate the oxidative stress and to improve the resilience of barley subjected to drought" in Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade (2022):67, https://hdl.handle.net/21.15107/rcub_rimsi_1872 .