Comparative Study of Drought Stress Effects on Traditional and Modern Apple Cultivars

Mihaljević, Ines; Vuletić, Marija Viljevac; Šimić, Domagoj; Tomaš, Vesna; Horvat, Daniela; Josipović, Marko; Dugalić, Krunoslav; Vuković, Dominik

doi:10.3390/plants10030561

Cited by 46 publications

(37 citation statements)

References 74 publications

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“…A stronger decline of these parameters during the drought period in modern cultivar New Star confirmed its higher drought sensitivity compared with autochthonous cultivar. In our previous research, we also observed that autochthonous apple cultivar had better photosynthetic efficiency compared to modern apple cultivar under drought conditions (Mihaljević et al 2021).…”

Section: Discussionmentioning

confidence: 73%

PSII photochemistry responses to drought stress in autochthonous and modern sweet cherry cultivars

Mihaljević¹,

Vuletić²,

Tomaš³

et al. 2021

Photosynt.

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Abbreviations: ABS/RC -absorption flux (of PSII antenna Chl) per RC; Chl -chlorophyll; DAS -days after stress (drought application); ET0/ABS (φE0) -quantum yield of electron transport from QAto PQ; DI0/RC -dissipation flux per RC; DM -dry mass; ET0/RC -electron transport flux per RC; ET0/TR0 (ψE0) -probability that a trapped exciton moves an electron into the electron transport chain beyond QA; F0 -minimum fluorescence, when all PSII RCs are open; FM -fresh mass; Fm -maximum fluorescence, when all PSII RCs are closed; Fv -maximal variable fluorescence; Fv/F0 -the ratio between the trapping flux and energy dissipation flux of PSII; Fv/Fm -maximum quantum yield of PSII photochemistry; M0 -approximated initial slope of the fluorescence transient; MDA -malondialdehyde content; OEC -oxygen-evolving complex; PIABS -performance index for energy conservation from photons absorbed by PSII until the reduction of intersystem electron acceptors; PItotal -performance index for energy conservation from photons absorbed by PSII until the reduction of PSI end acceptors; PQ -plastoquinone; PQH2 -plastoquinol; RC -reaction centre; RE0/ABS (φR0) -quantum yield of electron transport from QAto final PSI acceptors; RE0/ET0 (δR0) -efficiency with which an electron can move from the reduced intersystem electron acceptors to the PSI end electron acceptors; RE0/RC -electron flux reducing end electron acceptors at the PSI acceptor side per reaction centre; ROS -reactive oxygen species; Sm -normalized total complementary area above the OJIP transient (reflecting single-turnover QA reduction events); TR0/RC -trapping flux per PSII RC; VI -relative variable fluorescence at 30 ms (I-step); VJ -relative variable fluorescence at 2 ms (J-step); VOP -relative variable fluorescence between O-and P-steps; WC -water content; WOJ -relative variable fluorescence between O-and J-steps; WOK -relative variable fluorescence between O-and K-steps.

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Section: Discussionmentioning

confidence: 73%

PSII photochemistry responses to drought stress in autochthonous and modern sweet cherry cultivars

Mihaljević¹,

Vuletić²,

Tomaš³

et al. 2021

Photosynt.

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“…Jia et al [ 38 ] also found that PSI and PSII activities declined with drought stress duration in maize. A decline in PIabs at pod filling suggests an inactivation of the PSII reaction centers (RCs) [ 18 ]. Therefore, increased PIabs in AGS429 and UVE17 under drought stress shows that these cultivars may have maintained their PSII RCs and avoided photo-inhibition of both photosystems [ 38 ].…”

Section: Discussionmentioning

confidence: 99%

“…An increase in the accumulation of carotenoids (CRDs) of drought-stressed transgenic tobacco ( Nicotiana tabacum ), alfalfa ( Medicago sativa ) and sweet potato ( Ipomoea batatas ) plants improved membrane stability and enhanced antioxidant activity [ 15 , 16 , 17 ]. Reduction of the photosynthetic efficiency in drought-stressed apple ( Malus pumila ) trees was associated with low Fv/Fm (which represents quantum efficiency of photosystem II), performance index absorbance (PIabs) and total performance index (PItotal) [ 18 ]. In barley cultivars, Fv/Fm only decreased under severe drought stress, but PIabs was not affected [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

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

Hlahla

Mafa

Merwe

et al. 2022

Plants

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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.

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“…These types of treatments also enhance the antioxidant capacity of the shoot extracts and may be the primary function of these cold-inducible flavonoids. Furthermore, investigation conducted by Mihaljevic et al [10] showed that traditional apple cultivar are more resistant to drought when compared with commercial one.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Patulin and Polyphenol Profile of Croatian Traditional and Conventional Apple Cultivars during Storage

Skoko

Vilić

Tomas

et al. 2022

Foods

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Apples and apple-based products are among the most consumed fruits around the world. However, they are susceptible to infection with the fungi Penicilium expansum. In addition to the reduction of apple quality, secondary metabolism of this fungus produces a mycotoxin patulin that has a negative effect on human health. Currently, there is no available research in the literature on the resistance of Croatian traditional apple cultivars to contamination with P. expansum, and consequently, on the patulin content in apples and apple juice produced from those apples. Although the mechanism of apple resistance to fungal diseases has not yet been sufficiently investigated, some studies have shown that polyphenolic compounds have some impact on fungi growth. In order to contribute with new knowledge, this research deals with monitoring the growth of P. expansum on apples, patulin detection by LC/MS-MS, determination of polyphenol profile by validated HPLC method, and determining the effect of polyphenolic compounds on fungi growth and patulin production during apple storage. The results of this study have shown that Croatian traditional apple cultivars harvested from family farm Horvatić contain higher concentration of polyphenolic compounds and higher antioxidant activity. At the same time, they showed more resistance to infection by P. expansum than conventional ones. The higher content of dihydrochalcones and flavanols encouraged the biosynthesis of patulin in examined cultivars. However, the higher content of non-flavonoids such as 2-6 dimethoxybenzoic acid, 4-hydroxycinnamic acid and chlorogenic acid leads to decrease in content of patulin. In conclusion, it seems that content of polyphenols and patulin production are correlated.

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Comparative Study of Drought Stress Effects on Traditional and Modern Apple Cultivars

Cited by 46 publications

References 74 publications

PSII photochemistry responses to drought stress in autochthonous and modern sweet cherry cultivars

PSII photochemistry responses to drought stress in autochthonous and modern sweet cherry cultivars

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

Occurrence of Patulin and Polyphenol Profile of Croatian Traditional and Conventional Apple Cultivars during Storage

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