Chlorophyll fluorescence as a diagnostic tool for abiotic stress tolerance in wild and cultivated strawberry species

Na, Young-Wang; Jeong, Ho Jeong; Lee, Sun-Yi; Choi, Hyo-Won; Kim, Seok-Hyeon; Rho, Il Rae

doi:10.1007/s13580-014-0006-9

Cited by 38 publications

(25 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Water potential is a direct index to reflect the plant water status or water deficit and can be used to estimate the drought-resistant ability of plants under drought stress (Na et al, 2014). The study found that the water potential of strawberries leaves decreased with drought stress intensity increased, which is consistent with previous research (Yang et al, 2006).…”

Section: Discussionsupporting

confidence: 90%

Proline, Sugars, and Antioxidant Enzymes Respond to Drought Stress in the Leaves of Strawberry Plants

Sun¹,

Li²,

Hu³

et al. 2015

HST

View full text Add to dashboard Cite

Drought is a severe abiotic stress that affects global crop production. A drought model was created for 'Toyonoka' Fragaria × ananassa, and the effects of drought stress on contents of proline, sugars, and antioxidant enzyme activities were investigated. Strawberry transplants with identical growth were chosen for the experiments and the randomized design included four replications (10 plants per block). The experimental sets differed in the moisture level of the culture medium relative to the range of moisture content as follows: control, 70-85%; mild drought stress, 50-60%; moderate drought stress, 40-50%; and severe drought stress, 30-40%. Drought stress was imposed by limiting irrigation. Plants were sampled and physiological parameters were measured on 0, 2, 4, 6, 8, and 10 days after the commencement of drought stress. The water potential of strawberry leaves decreased in the plants under mild, moderate, and severe stress during the course of the water stress treatment and exhibited a significant difference from the control. Strawberry leaves subjected to drought stress had higher accumulation of proline, sugars, and malondialdehyde, and higher activities of superoxide dismutase, peroxidase, and catalase than leaves of control plants. Malondialdehyde levels increased in parallel with the severity and duration of drought stress. By contrast, antioxidant enzyme activity displayed dynamic responses to drought stress, first increasing and subsequently decreasing as the severity and duration of drought stress increased. These results suggest that strawberry plants respond to drought stress by altering the activities of antioxidant enzymes and the levels of osmotically active metabolites. These biochemical response changes may confer adaptation to drought stress and improve the capacity of plants to withstand water-deficit conditions.

show abstract

Section: Discussionsupporting

confidence: 90%

Proline, Sugars, and Antioxidant Enzymes Respond to Drought Stress in the Leaves of Strawberry Plants

Sun¹,

Li²,

Hu³

et al. 2015

HST

View full text Add to dashboard Cite

show abstract

“…Fv/Fm is a normalized ratio created by dividing variable ChlF by maximum ChlF and represents the maximal efficiency of PSII to photochemistry (Baker, 2008). While Fv/Fm values in the range of 0.79–0.84 are regarded optimal for many plant species, decreased values are frequently observed when plants are exposed to various stress conditions such as high light, chilling, and salinity (Jamil et al, 2007; Na et al, 2014; Rapparini et al, 2015). In this study, it was noted that strawberry plants grown under BF condition of low light and low temperature showed higher Fv/Fm ratios than those plants grown under UT, UF, and BT conditions (Figures 2, 3).…”

Section: Discussionmentioning

confidence: 99%

Correlation between Strawberry (Fragaria ananassa Duch.) Productivity and Photosynthesis-Related Parameters under Various Growth Conditions

2016

View full text Add to dashboard Cite

In the present study, we investigated changes in chlorophyll fluorescence, photosynthetic parameters and fruit yields, as well as fruit phytochemical accumulation of strawberry (Fragaria ananassa Duch.) that had been cultivated in a greenhouse under different combinations of light intensity and temperature. In plants grown with low light (LL) photosystem II chlorophyll fluorescence was found to increase as compared with those grown under high light (HL). When strawberry plants were grown with temperature higher than 5°C in addition to LL, they showed decrease in non-photochemical quenching (NPQ), photochemical quenching (qP), as well as chlorophyll fluorescence decrease ratio (RFd) when compared with other combinations of light and temperature. Moreover, fruit yield of strawberry was closely correlated with chlorophyll fluorescence-related parameters such as NPQ, qP, and RFd, but not with the maximum efficiency of PS II (Fv/Fm). Although plant groups grown under different combinations of light and temperature showed almost comparable levels of photosynthesis rates (Pr) when irradiated with low-intensity light, they displayed clear differences when measured with higher irradiances. Plants grown under HL with temperature above 10°C showed the highest Pr, in contrast to the plants grown under LL with temperature above 5°C. When the stomatal conductance and the transpiration rate were measured, plants of each treatment showed clear differences even when analyzed with lower irradiances. We also found that fruit production during winter season was more strongly influenced by growth temperature than light intensity. We suggest that fruit productivity of strawberry is closely associated with chlorophyll fluorescence and photosynthesis-related parameters during cultivation under different regimes of temperature and light.

show abstract

“…The opposite trend of Pn and Ci indicated that the decreases in Pn of runner plants under 30 and 210 µmol m −2 s −1 were due to the decrease of photosynthetic activity of mesophyll cells, instead of stomatal limitation [30]. The F v /F m was used as a stress indicator of strawberry leaves for its sensitivity to early stress responses [31]. No significant difference in F v /F m of the leaves of runner plants under 30 and 90 µmol m −2 s −1 was found ( Figure 4F); however, it decreased significantly under 150 and 210 µmol m −2 s −1 .…”

Section: Root Development and Leaf Photosynthetic Activity Of Unrootementioning

confidence: 99%

Effect of Light Intensity on Rooting and Growth of Hydroponic Strawberry Runner Plants in a LED Plant Factory

Zheng

et al. 2019

Agronomy

View full text Add to dashboard Cite

To rapidly produce strawberry (Fragaria × ananassa Duch. cv. Benihoppe) transplants from cuttings, suitable light intensities for unrooted runner plants at the rooting stage and rooted runner plants at the seedling stage were determined in a plant factory under LED lighting. At the rooting stage, unrooted runner plants at the 3-leaf stage were hydroponically rooted for 6 days under light intensity of 30, 90, 150, and 210 µmol m −2 s −1 , respectively. At the seedling stage, rooted runner plants were hydroponically grown for 18 days under light intensity of 90, 180, 270, and 360 µmol m −2 s −1 , respectively. The tube LED lights consisting of white and red LED chips were used as sole light source, and photoperiod was controlled as 16 h d −1 . The results showed that the maximum root number (7.7) and longest root length (14.8 cm) of the runner plants were found under 90 µmol m −2 s −1 at the rooting stage. Photosynthetic activity in runner plant leaves under 90 µmol m −2 s −1 were higher than that under 30, 150, and 210 µmol m −2 s −1 . Higher light intensity at the range of 90-270 µmol m −2 s −1 increased the stomatal conductance of newly formed leaves of rooted runner plants, thus improving the net photosynthetic rate and growth of rooted runner plants at the seedling stage. The crown diameter, shoot and root dry weights, and root to shoot ratio of rooted runner plants increased by 9.7%, 38.8%, 106.1%, and 48.7%, respectively, when the light intensity increased from 90 to 270 µmol m −2 s −1 . However, there was no further improvement of runner plant growth under 360 µmol m −2 s −1 . Furthermore, no significant difference of increased dry biomass per mole of photons delivered was found between 180 and 270 µmol m −2 s −1 . In consideration of transplant quality and economic balance, light intensity of 90 µmol m −2 s −1 at the rooting stage and 270 µmol m −2 s −1 at the seedling stage were suggested for rapidly producing hydroponic strawberry transplants based on unrooted runner plants in the LED plant factory.

show abstract

Chlorophyll fluorescence as a diagnostic tool for abiotic stress tolerance in wild and cultivated strawberry species

Cited by 38 publications

References 16 publications

Proline, Sugars, and Antioxidant Enzymes Respond to Drought Stress in the Leaves of Strawberry Plants

Proline, Sugars, and Antioxidant Enzymes Respond to Drought Stress in the Leaves of Strawberry Plants

Correlation between Strawberry (Fragaria ananassa Duch.) Productivity and Photosynthesis-Related Parameters under Various Growth Conditions

Effect of Light Intensity on Rooting and Growth of Hydroponic Strawberry Runner Plants in a LED Plant Factory

Contact Info

Product

Resources

About