Cellular oxidative damage and impairment on the photosynthetic apparatus caused by Asian Soybean Rust on soybeans are alleviated by nickel

One of the most severe diseases affecting soybean is the Asian Soybean Rust (ASR) caused by Phakopsora pachyrhizi H. Sydow & P. Sydow. The oxidative damage in cellular constituents and the disruption in the photosynthetic apparatus are the major negative effects of ASR on soybean plants. Conside...

Full description

Saved in:
Bibliographic Details
Published in:Acta physiologiae plantarum 2020-07, Vol.42 (7), Article 115
Main Authors: Einhardt, Andersom M., Ferreira, Sandro, Souza, Gabriel M. F., Mochko, Ana C. R., Rodrigues, Fabrício A.
Format: Article
Language:English
Subjects:
Accumulation
Agriculture
Alkali-silica reactions
Antioxidants
Biomedical and Life Sciences
Carbon dioxide
Chlorophyll
Conductance
Damage
Electron transport
Enzymes
Hydrogen peroxide
Impairment
Infections
Life Sciences
Malondialdehyde
Nickel
Original Article
Photochemicals
Photosynthesis
Photosynthetic apparatus
Photosynthetic pigments
Photosystem II
Pigments
Plant Anatomy/Development
Plant Biochemistry
Plant Genetics and Genomics
Plant metabolism
Plant Pathology
Plant Physiology
Plant tissues
Reactive oxygen species
Resistance
Soybeans
Stomata
Stomatal conductance
Sugar
Superoxide
Transpiration
Transport rate
Water vapor
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:One of the most severe diseases affecting soybean is the Asian Soybean Rust (ASR) caused by Phakopsora pachyrhizi H. Sydow & P. Sydow. The oxidative damage in cellular constituents and the disruption in the photosynthetic apparatus are the major negative effects of ASR on soybean plants. Considering the importance of nickel (Ni) on plant metabolism, this study evaluated the effect of foliar Ni-supply on ASR control, reactive oxygen species (ROS) accumulation, activities of antioxidant enzymes, parameters related to photosynthesis, and sugars levels on soybean plants. ASR severity decreased by 34% due to Ni supply. Infected and Ni-supplied (+ Ni) plants showed lower malondialdehyde level and superoxide (O 2− ) and hydrogen peroxide (H 2 O 2 ) accumulation in contrast to infected leaf tissues of non-Ni-supplied (− Ni) plants. The antioxidant enzymes activities were inefficient to avoid the high ROS accumulation for − Ni inoculated plants. The photosynthetic pigments, maximum photochemical efficiency of photosystem II (PSII), effective yield of PSII, electron transport rate, rate of net carbon assimilation, stomatal conductance to water vapor, and transpiration rate values were higher and the yield for other non-regulated losses and internal CO 2 concentration values were lower for + Ni inoculated plants compared to − Ni inoculated plants. High ROS production and the greater damage to the photosynthetic apparatus caused by P. pachyrhizi infection on − Ni plants affected the synthesis of the sugars. The infection also decreased the plant’s energetic reserves faster in − Ni plants compared to + Ni plants. In conclusion, the cellular oxidative damage and the impairment on the photosynthetic apparatus of soybean plants caused by P. pachyrhizi infection were alleviated by supplying Ni foliarly.
ISSN:0137-5881
1861-1664
DOI:10.1007/s11738-020-03108-x