Compound-specific responses of phenolic metabolites in the bark of drought-stressed Salix daphnoides and Salix purpurea

Köhler, Angela; Förster, Nadja; Zander, Matthias; Ulrichs, Christian

doi:10.1016/j.plaphy.2020.07.004

Cited by 13 publications

(9 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Drought stress significantly decreased the phenolic content in Salix viminalis , Salix dasyclados , Vitis vinifera and Salix myrsinifolia . In contrast, other studies showed that drought stress had no effect on total phenols [ 33 ].…”

Section: Introductionmentioning

confidence: 85%

The Photosynthetic Efficiency and Carbohydrates Responses of Six Edamame (Glycine max. L. Merrill) Cultivars under Drought Stress

Hlahla

Mafa

Merwe

et al. 2022

Plants

View full text Add to dashboard Cite

Vegetable-type soybean, also known as edamame, was recently introduced to South Africa. However, there is lack of information on its responses to drought. The aim of this study was to investigate the photosynthetic efficiency and carbohydrates responses of six edamame cultivars under drought stress. Photosynthetic efficiency parameters, including chlorophyll fluorescence and stomatal conductance, were determined using non-invasive methods, while pigments were quantified spectrophotometrically. Non-structural carbohydrates were quantified using Megazyme kits. Structural carbohydrates were determined using Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). Drought stress significantly increased the Fv/Fm and PIabs of AGS429 and UVE17 at pod filling stage. Chlorophyll-a, which was most sensitive to drought, was significantly reduced in AGS429 and UVE17, but chlorophyll-b was relatively stable in all cultivars, except UVE17, which showed a significant decline at flowering stage. AGS354 and AGS429 also showed reduced chlorophyll-b at pod filling. UVE17 showed a significant reduction in carotenoid content and a substantial reduction in stomatal conductance during pod filling. Drought stress during pod filling resulted in a significant increase in the contents of trehalose, sucrose and starch, but glucose was decreased. Chlorophyll-a positively correlated with starch. The FTIR and XRD results suggest that the cell wall of UVE14, followed by UVE8 and AGS429, was the most intact during drought stress. It was concluded that carotenoids, stomatal conductance, starch and hemicellulose could be used as physiological/biochemical indicators of drought tolerance in edamame. This information expands our knowledge of the drought defense responses in edamame, and it is essential for the physiological and biochemical screening of drought tolerance.

show abstract

Section: Introductionmentioning

confidence: 85%

The Photosynthetic Efficiency and Carbohydrates Responses of Six Edamame (Glycine max. L. Merrill) Cultivars under Drought Stress

Hlahla

Mafa

Merwe

et al. 2022

Plants

View full text Add to dashboard Cite

show abstract

“…For example, proline is often used as an penetrant, which can regulate redox balance and energy state ( Zheng et al., 2021 ); the serine family plays a role in sugarcane response to drought stress ( Diniz et al., 2020 ). There are also some phenolic acid metabolites that scavenge reactive oxygen species by activating the phenylpropanoid pathway ( Sharma et al., 2019 ; Köhler et al., 2020 ). It has also been demonstrated that a few transcription factors, such as AREB/ABF, DREBs, AP2/ERF, bZIP, NAC and MYB, are the primary players in water stress signals, which react to drought by altering stomatal movement or certain metabolic pathways ( Lata and Prasad, 2011 ; Baldoni et al., 2015 ; Joshi et al., 2016 ).…”

Section: Research Progress Of the Study Of Drought Stress Responsementioning

confidence: 99%

Current views of drought research: experimental methods, adaptation mechanisms and regulatory strategies

Wang,

Li,

Zhao

et al. 2024

Front. Plant Sci.

View full text Add to dashboard Cite

Drought stress is one of the most important abiotic stresses which causes many yield losses every year. This paper presents a comprehensive review of recent advances in international drought research. First, the main types of drought stress and the commonly used drought stress methods in the current experiment were introduced, and the advantages and disadvantages of each method were evaluated. Second, the response of plants to drought stress was reviewed from the aspects of morphology, physiology, biochemistry and molecular progression. Then, the potential methods to improve drought resistance and recent emerging technologies were introduced. Finally, the current research dilemma and future development direction were summarized. In summary, this review provides insights into drought stress research from different perspectives and provides a theoretical reference for scholars engaged in and about to engage in drought research.

show abstract

“…Eleven xerophytic (naturally drought‐tolerant) species include: (i) three grasses – Panicum hallii , Cleistogenes songorica and Setaria viridis . All of them are C4 plants with adaptations for water‐efficient carbon fixation and a prolific root system allowing efficient water absorption (Lovell et al., 2018; Valença et al., 2020); (ii) four trees – Populus euphratica , Populus deltoides , Populus trichocarpa and Salix purpurea that possess remarkable drought tolerance (Köhler et al., 2020; Monclus et al., 2006); (iii) two desert shrubs – Simmondsia chinensis (Wang et al., 2019) and Manihot esculenta (Muiruri et al., 2021) which possess great drought avoidance ability; and (4) two succulent species – Kalanchoe fedtschenkoi and Kalanchoe laxiflora . These plants belong to crassulacean acid metabolism type of photosynthesis and show high WUE, as well as an ability to grow on marginal or degraded land (Buckland et al., 2023).…”

Section: Targeting Root Sensing Mechanismsmentioning

confidence: 99%

Climate‐resilient crops: Lessons from xerophytes

Chen,

Zhao,

Yun

et al. 2023

The Plant Journal

View full text Add to dashboard Cite

SUMMARYDeveloping climate‐resilient crops is critical for future food security and sustainable agriculture under current climate scenarios. Of specific importance are drought and soil salinity. Tolerance traits to these stresses are highly complex, and the progress in improving crop tolerance is too slow to cope with the growing demand in food production unless a major paradigm shift in crop breeding occurs. In this work, we combined bioinformatics and physiological approaches to compare some of the key traits that may differentiate between xerophytes (naturally drought‐tolerant plants) and mesophytes (to which the majority of the crops belong). We show that both xerophytes and salt‐tolerant mesophytes have a much larger number of copies in key gene families conferring some of the key traits related to plant osmotic adjustment, abscisic acid (ABA) sensing and signalling, and stomata development. We show that drought and salt‐tolerant species have (i) higher reliance on Na for osmotic adjustment via more diversified and efficient operation of Na+/H+ tonoplast exchangers (NHXs) and vacuolar H+‐ pyrophosphatase (VPPases); (ii) fewer and faster stomata; (iii) intrinsically lower ABA content; (iv) altered structure of pyrabactin resistance/pyrabactin resistance‐like (PYR/PYL) ABA receptors; and (v) higher number of gene copies for protein phosphatase 2C (PP2C) and sucrose non‐fermenting 1 (SNF1)‐related protein kinase 2/open stomata 1 (SnRK2/OST1) ABA signalling components. We also show that the past trends in crop breeding for Na+ exclusion to improve salinity stress tolerance are counterproductive and compromise their drought tolerance. Incorporating these genetic insights into breeding practices could pave the way for more drought‐tolerant and salt‐resistant crops, securing agricultural yields in an era of climate unpredictability.

show abstract

Compound-specific responses of phenolic metabolites in the bark of drought-stressed Salix daphnoides and Salix purpurea

Cited by 13 publications

References 33 publications

The Photosynthetic Efficiency and Carbohydrates Responses of Six Edamame (Glycine max. L. Merrill) Cultivars under Drought Stress

The Photosynthetic Efficiency and Carbohydrates Responses of Six Edamame (Glycine max. L. Merrill) Cultivars under Drought Stress

Current views of drought research: experimental methods, adaptation mechanisms and regulatory strategies

Climate‐resilient crops: Lessons from xerophytes

Contact Info

Product

Resources

About