Cold Hardiness Assessment in Seven Commercial Fig Cultivars (Ficus Carica L.)

Karami, Hadis; Rezaei, Mehdi; Sarkhosh, Ali; Rahemi, Majid; Jafari, M.

doi:10.1007/s10343-018-0431-2

Cited by 14 publications

(9 citation statements)

References 21 publications

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“…When plants are subjected to cold stress, their cells ultimately experience osmotic stress due to the formation of ice crystals 13 . Under osmotic stress, the changes in the accumulation of compatible solutes are the most prominent alterations observed among the physiological and biochemical characteristics of plants 14 . Proline and soluble sugars, which act as compatible solutes that are involved in multiple metabolic pathways, are produced and accumulate under cold stress 15 .…”

Section: Introductionmentioning

confidence: 99%

The AaCBF4-AaBAM3.1 module enhances freezing tolerance of kiwifruit (Actinidia arguta)

Sun

et al. 2021

Hortic Res

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Beta-amylase (BAM) plays an important role in plant resistance to cold stress. However, the specific role of the BAM gene in freezing tolerance is poorly understood. In this study, we demonstrated that a cold-responsive gene module was involved in the freezing tolerance of kiwifruit. In this module, the expression of AaBAM3.1, which encodes a functional protein, was induced by cold stress. AaBAM3.1-overexpressing kiwifruit lines showed increased freezing tolerance, and the heterologous overexpression of AaBAM3.1 in Arabidopsis thaliana resulted in a similar phenotype. The results of promoter GUS activity and cis-element analyses predicted AaCBF4 to be an upstream transcription factor that could regulate AaBAM3.1 expression. Further investigation of protein-DNA interactions by using yeast one-hybrid, GUS coexpression, and dual luciferase reporter assays confirmed that AaCBF4 directly regulated AaBAM3.1 expression. In addition, the expression of both AaBAM3.1 and AaCBF4 in kiwifruit responded positively to cold stress. Hence, we conclude that the AaCBF-AaBAM module is involved in the positive regulation of the freezing tolerance of kiwifruit.

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Section: Introductionmentioning

confidence: 99%

The AaCBF4-AaBAM3.1 module enhances freezing tolerance of kiwifruit (Actinidia arguta)

Sun

et al. 2021

Hortic Res

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“…Common fig trees are usually planted for their fruit production, especially in Mediterranean, but it is also known for their horticultural cultivation in continental climate due to amazing vegetative growth, easy vegetative propagation and sensitivity to cold temperature (Badelj Mavsar et al, 2008; Flaishman, Rodov, & Stover, 2008; Prgomet & Bohač, 2003; Yamakura, Hosomi, & Hirayama, 2008). Being warm‐climate, thermophilic species, young fig trees and 1‐year‐old shoots are very sensitive to low temperatures, especially to frost and if tree tips get injured by chilling, the whole plant is in danger of dying (Karami, Rezaei, Sarkhosh, Rahemi, & Jafari, 2018; Martin, Ort, & Boyer, 1981; Yamakura et al, 2008). Unlike the most other woody species, young fig leaves initiate at the top of the canopy during the whole summer.…”

Section: Introductionmentioning

confidence: 99%

Antioxidative response and photosynthetic regulatory mechanisms in common fig leaves after short‐term chilling stress

Mlinarić

Cesar

Lepeduš

2021

Annals of Applied Biology

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Common fig (Ficus carica L.) is widely cultivated Mediterranean species. Such warm‐climate species are adapted to elevated temperatures and are susceptible to chilling stress (0–12°C). However, occasional short chilling periods are common during growing season in temperate areas that can affect functionality of the plant. The aim of this work was to investigate influence of short‐term chilling stress on antioxidative response and PSII photochemistry in developing leaves of two common fig varieties: Zamorčica and Green matalon. Leaves were detached from the trees, acclimated at room temperature in dark for 16 hr and then exposed to low temperature (10°C) at low irradiation (50 μmol m−2 s−1) for 4 hr. Dark adapted leaves were considered as the control. The damage to the membranes was determined as lipid peroxidation (thiobarbituric acid reactive substances) while the antioxidative response was evaluated by determining activities of the selected antioxidative enzymes. Photosynthetic performance was analysed by measuring in vivo chlorophyll a fluorescence (ChlF) increase. Relative accumulation of the main photosynthetic proteins (D1 and Rubisco LSU) was determined, as well. Due to efficient antioxidative activity, neither of investigated variety showed damage of the membrane lipids. Both varieties revealed functional antennae and its good connectivity to their reaction centres shown as negative L and K bands as well as stable D1 protein accumulation suggesting functional electron transport through photosystem II (PSII) and efficient primary photochemistry. Blocked electron flow further than QA resulted in limitation of the Photosystem I (PSI) functionality in both varieties. Due to differential relative accumulation of D1 and Rubisco LSU proteins upon the chilling stress, Zamorčica revealed greater decrease of the main photosynthetic parameters derived from in vivo ChlF induction (PItotal, PIABS and φP0) in comparison to Green matalon. In addition, increased specific energy fluxes through PSII in Zamorčica suggested its higher susceptibility to photoinhibition caused by chilling stress in comparison to Green matalon.

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“…Sugars protect proteins from denaturation during dehydration and also prevent ice formation inside cells. There is evidence that the hydrolysis of starch and the accumulation of water-soluble sugars (sucrose, glucose, fructose) in the cytoplasm under the action of low temperatures increases in frost-resistant varieties of woody and herbaceous plants [8][9][10]. In our studies, in the pre-winter period, in November, the smallest amount of water-soluble sugars was accumulated in the Ligol variety -5.52 mg/g dry weight, in other varieties it was 8.31-12.47 mg/g dry weight (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…There is evidence that a decrease in the amount of starch and an increase the sugar content of various plants during the winter is associated with frost resistance [8][9][10]. There is evidence that the content of soluble proteins in plant tissues increases during the period of autumn hardening.…”

Section: Introductionmentioning

confidence: 99%

Adaptive resistance of apple trees in the unstable climate of southern Russia

et al. 2021

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The purpose of these studies is to assess the adaptive resistance of the apple tree to winter stresses in terms of physiological and biochemical parameters, to identify the most resistant varieties for cultivation in the Krasnodar region. Objects of research are apple varieties of various origins: Orfey, Idared, Ligol, Prikubanskoe. It was found that the cryoprotective function of water-soluble sugars was maximally manifested in the varieties Orfey and Ligol, their content increased by 2.56 and 2.7 times, respectively. Soluble proteins made the greatest contribution to the formation of a protective response in Orfey and Prikubanskoye varieties in January, their content increased 1.8 and 1.9 times, respectively, compared to December. The protective function of anthocyanins was maximally manifested in December in the Orfey variety, in the bark of which their content increased by 5.6 times. Physiological and biochemical adaptation of apple varieties to low negative temperatures of the winter period is achieved by increasing the content of water-soluble sugars, proteins in anthocyanins in the bark and buds. According to the obtained data, the apple varieties Orfey and Prikubanskoye showed themselves to be more adaptive in comparison with other studied varieties and are recommended for cultivation in the Krasnodar region.

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Cold Hardiness Assessment in Seven Commercial Fig Cultivars (Ficus Carica L.)

Cited by 14 publications

References 21 publications

The AaCBF4-AaBAM3.1 module enhances freezing tolerance of kiwifruit (Actinidia arguta)

The AaCBF4-AaBAM3.1 module enhances freezing tolerance of kiwifruit (Actinidia arguta)

Antioxidative response and photosynthetic regulatory mechanisms in common fig leaves after short‐term chilling stress

Adaptive resistance of apple trees in the unstable climate of southern Russia

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