scholarly journals Enhancement of Brassica napus Tolerance to High Saline Conditions by Seed Priming

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 403
Author(s):  
Panaiotis M. Stassinos ◽  
Massimiliano Rossi ◽  
Ilaria Borromeo ◽  
Concetta Capo ◽  
Simone Beninati ◽  
...  

Plants grown in saline soils undergo osmotic and oxidative stresses, affecting growth and photosynthesis and, consequently, the yield. Therefore, the increase in soil salinity is a major threat to crop productivity worldwide. Plant’s tolerance can be ameliorated by applying simple methods that induce them to adopt morphological and physiological adjustments to counteract stress. In this work, we evaluated the effects of seed priming on salt stress response in three cultivars of rapeseed (Brassica napus L.) that had different tolerance levels. Seed chemical priming was performed with 2.5 mM spermine (SPM), 5 mM spermidine (SPD), 40 mM NaCl and 2.5 mM Ca (NO3)2. Primed and not primed seeds were sown on saline and not saline (controls) media, and morphological and physiological parameters were determined. Since SPD treatment was effective in reducing salinity negative effects on growth, membrane integrity and photosynthetic pigments, we selected this priming to further investigate plant salt stress response. The positive effects of this seed treatment on growth and physiological responses were evident when primed plants were compared to not primed ones, grown under the same saline conditions. SPD priming ameliorated the tolerance towards saline stress, in a genotype-independent manner, by increasing photosynthetic pigments, proline amounts and antioxidant responses in all cultivars exposed to salt. These results may open new perspectives for crop productivity in the struggle against soil salinization.

2021 ◽  
Vol 329 ◽  
pp. 180-191
Author(s):  
Ulkar İbrahimova ◽  
Pragati Kumari ◽  
Saurabh Yadav ◽  
Anshu Rastogi ◽  
Michal Antala ◽  
...  

BMC Genomics ◽  
2012 ◽  
Vol 13 (1) ◽  
pp. 215 ◽  
Author(s):  
Guido Mastrobuoni ◽  
Susann Irgang ◽  
Matthias Pietzke ◽  
Heike E Aßmus ◽  
Markus Wenzel ◽  
...  

2007 ◽  
Vol 27 (22) ◽  
pp. 7771-7780 ◽  
Author(s):  
Paul E. Verslues ◽  
Giorgia Batelli ◽  
Stefania Grillo ◽  
Fernanda Agius ◽  
Yong-Sig Kim ◽  
...  

ABSTRACT SOS2, a class 3 sucrose-nonfermenting 1-related kinase, has emerged as an important mediator of salt stress response and stress signaling through its interactions with proteins involved in membrane transport and in regulation of stress responses. We have identified additional SOS2-interacting proteins that suggest a connection between SOS2 and reactive oxygen signaling. SOS2 was found to interact with the H2O2 signaling protein nucleoside diphosphate kinase 2 (NDPK2) and to inhibit its autophosphorylation activity. A sos2-2 ndpk2 double mutant was more salt sensitive than a sos2-2 single mutant, suggesting that NDPK2 and H2O2 are involved in salt resistance. However, the double mutant did not hyperaccumulate H2O2 in response to salt stress, suggesting that it is altered signaling rather than H2O2 toxicity alone that is responsible for the increased salt sensitivity of the sos2-2 ndpk2 double mutant. SOS2 was also found to interact with catalase 2 (CAT2) and CAT3, further connecting SOS2 to H2O2 metabolism and signaling. The interaction of SOS2 with both NDPK2 and CATs reveals a point of cross talk between salt stress response and other signaling factors including H2O2.


2021 ◽  
Author(s):  
Ashok Saddhe Ankush ◽  
Ajay Kumar Mishra ◽  
Kumar Kundan

2018 ◽  
Vol 132 (2) ◽  
pp. 323-346 ◽  
Author(s):  
Benedict C. Oyiga ◽  
Francis C. Ogbonnaya ◽  
Ram C. Sharma ◽  
Michael Baum ◽  
Jens Léon ◽  
...  

2017 ◽  
Vol 94 (4-5) ◽  
pp. 531-548 ◽  
Author(s):  
Hung-Chi Chen ◽  
Vicki Hsieh-Feng ◽  
Pei-Chun Liao ◽  
Wan-Hsing Cheng ◽  
Li-Yu Liu ◽  
...  

PROTEOMICS ◽  
2006 ◽  
Vol 6 (9) ◽  
pp. 2733-2745 ◽  
Author(s):  
Sabine Fulda ◽  
Stefan Mikkat ◽  
Fang Huang ◽  
Jana Huckauf ◽  
Kay Marin ◽  
...  

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