Morphophysiological and nutritional characteristics of Crambe abyssinica Hochst under hydric restriction in different phenological stages

Boiago, Nayara Parisoto; Fortes, Andréa Maria Teixeira; Coelho, Sílvia Renata Machado; Cassol, Flávia Danieli Rech; Pilatti, Daiane Maria

doi:10.1007/s11738-018-2678-8

Cited by 3 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ionov et al (2013) also considers crambe seeds as moderately tolerant to salinity, and Qi et al (2018) describes that this crop can grow in saline soil and can tolerate salty irrigation water. Boiago et al (2018) describes crambe as sensitive to water restriction conditions at different stages of its development.…”

Section: Resultsmentioning

confidence: 99%

Tolerance of crambe (Crambe abyssinica Hochst) to salinity and water stress during seed germination and initial seedling growth

et al. 2019

View full text Add to dashboard Cite

Crambe is an oilseed plant whose oil is suitable for various industrial purposes, such as production of biodiesel, plastics, rubbers, and cosmetics. There are reports of the rusticity of this species and its potential for growth in arid and semi-arid environments, where water scarcity and soil salinity are common. However, studies regarding the tolerance of its seeds to these stresses and the physiological responses triggered during germination and seedling establishment under these conditions are incipient. The objective of this study was to evaluate the tolerance of crambe seeds to water deficit and salt stress during germination and early seedling development, as well as to investigate the role of antioxidant enzymes on tolerance to these conditions. The seeds were exposed to water and salt stresses and their performance was analyzed. Seed water content, imbibition rate, percentage and speed of germination, and the base water potential for seed germination were evaluated. In the seedlings, the following measurements were made: root and shoot length, fresh and dry matter of roots and shoots, moisture content, and activity of the enzymes superoxide dismutase (SOD), catalase (CAT), and peroxidase (POX). Water deficit and salt stress reduce the water uptake rate of the seeds, the germination and growth of seedlings. The crambe seeds had higher tolerance to salt stress than to water deficit. Absorption of salt and the action of the SOD and CAT antioxidant enzymes are part of the tolerance mechanisms of crambe seeds to salt stress.

show abstract

Section: Resultsmentioning

confidence: 99%

Tolerance of crambe (Crambe abyssinica Hochst) to salinity and water stress during seed germination and initial seedling growth

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Therefore, identification and selection of genotypes with morphophysiological attributes that show drought-tolerance responses during certain plant development stages, such as the flowering stage, can be promising in the maintenance of crops' production (Santos et al 2012, Anjum et al 2017. Boiago et al (2018) observed a decrease in the uptake of potassium (K) and sodium (Na) of crambe plants (cultivar Brilhante) under WD at the flowering stage, resulting in lesser growth of the plants.…”

Section: Introductionmentioning

confidence: 99%

Morphophysiological responses of Crambe abyssinica Hochst. lineages submitted to water deficit during flowering

Braga¹,

Martins²,

Bonomo³

et al. 2021

Photosynt.

View full text Add to dashboard Cite

Abbreviations: ABS/RC -absorption flux per RC; Chl -chlorophyll; CI -continuously irrigated plants; DI0/RC -dissipated energy flux per RC; ET0/RC -electron transport flux per RC; F0 -minimal fluorescence yield of the dark-adapted state; FI -fluorescence intensity at 30 ms; FJ -fluorescence intensity at 2 ms; FK -fluorescence intensity at 0.3 ms; Fm -maximal fluorescence yield of the dark-adapted state; FV/F0 -ratio of photochemical to nonphotochemical quantum efficiencies (PSII potential activity); gs -stomatal conductance; GSI -germination speed index; M0 -number of closed and/or inactive reaction centers; OEC -oxygen-evolving complex; PI(ABS) -performance index based on absorption; PI(TOTAL) -overall performance index, which measures the performance up until the final electron acceptors of PSI; RC -reaction center; RC/ABS -total number of active reaction centers per absorption; S1CI -control plants -progeny of continuously irrigated plants; S1WD -progeny of plants submitted to WD for 12 d; Sm -assumed proportional to the number of reduction and oxidation of one QAmolecule during the fast OJIP transient, and therefore related to the number of electron carriers per electron transport chain; TR0/RC -trapping flux per RC; WD -water deficit; WR -water resumption; %G -germination percentage; φD0 -quantum yield of energy dissipation; φE0 -quantum yield of electron transport; φP0 -maximum quantum yield of primary photochemistry; ψE0 -probability that a trapped exciton moves an electron into the electron transport chain beyond QA -.

show abstract

Root traits in Crambe abyssinica Hochst and Raphanus sativus L. plants are associated with differential tolerance to water deficit and post-stress recovery

Moura

Costa

Vital

et al. 2022

PeerJ

View full text Add to dashboard Cite

Background Previous studies have shown that Crambe abyssinica and Raphanus sativus are physiologically tolerant to water deficits; however, there is a lack of information on the mechanisms responsible for their tolerance regarding root morphological characteristics. This study aimed to characterize morphological changes in the root system of C. abyssinica and R. sativus subjected water deficit, as well as to identify the responses that improve tolerance and post-stress recovery capacity of these plants. Methods Independent experiments for each specieswere performed in a controlled greenhouse, where plants were randomly set in a randomized block design with five replicates. Plants of C. abyssinica and R. sativus were cultivated in pots and exposed to well-watered treatment (WW; 90% water holding capacity–WHC of the substrate) or water deficit (WD; 40% WHC) conditions, at 28 days after planting. The plants were kept under WD for 7, 14, or 21 days with rehydration soon after each episode of water deficit. Assessment of water relations, biomass allocation, leaf and root system morphological characteristics and gas exchange were performed after each period of water deficit and 48 h after rehydration. Results The water deficit reduced the water status of both species, and morphological and biomass allocation were not recovered after rehydration. Photosynthesis of C. abyssinica decreased with prolonged water deficit, which was also not recovered after rehydration. In R. sativus, photosynthesis was not altered by WD for 21 days, and a higher WUE was recorded. Root morphology of R. sativus was mainly affected at 14 days of WD, while the traits related to very fine roots increased at 21 days of WD, when compared to WW plants. Thus, R. sativus has shown greater tolerance to water deficits mainly due to the presence of very fine roots throughout the period of stress, when compared to C. abyssinica in which the fine roots predominated.

show abstract

Morphophysiological and nutritional characteristics of Crambe abyssinica Hochst under hydric restriction in different phenological stages

Cited by 3 publications

References 23 publications

Tolerance of crambe (Crambe abyssinica Hochst) to salinity and water stress during seed germination and initial seedling growth

Tolerance of crambe (Crambe abyssinica Hochst) to salinity and water stress during seed germination and initial seedling growth

Morphophysiological responses of Crambe abyssinica Hochst. lineages submitted to water deficit during flowering

Root traits in Crambe abyssinica Hochst and Raphanus sativus L. plants are associated with differential tolerance to water deficit and post-stress recovery

Contact Info

Product

Resources

About