scholarly journals Physiological and biochemical characteristics of some therophyllous species of the Ficus genus in water stress conditions

2021 ◽  
Vol 38 ◽  
pp. 00041
Author(s):  
Oksana Grebennikova ◽  
Ruslana Pilkeviсh
Keyword(s):  
Water Stress ◽  
Polyphenol Oxidase ◽  
Drought Resistance ◽  
Biochemical Parameters ◽  
Functional Relation ◽  
Proline Content ◽  
Tissue Water ◽  
Physiological And Biochemical Characteristics ◽  
Combined Action ◽  
Physiological And Biochemical

The relevance of the search for physiological and biochemical parameters associated with the implementation of plant adaptation mechanisms to the combined action of high temperatures and water stress is dictated by frequent summer droughts in southern regions. For this purpose, every month during the dry period under the conditions of a laboratory experiment a number of physiological and biochemical parameters were determined in the leaves of species F. palmata, F. virgata, and F. carica (Sabrutsia Rozovaya variety) that grow in the collection plots of the Nikitsky Botanical Gardens. In studied genotypes were assessed leaves tissue water сut, water deficit, moisture retaining ability, resistance to dehydration, proline content, peroxidase and polyphenol oxidase activity. It was defined that during the summer season physiological and biochemical parameters in the leaves of the studied species varied unequally. There was revealed the functional relation between the activity of peroxidase, polyphenol oxidase, proline content and the level of drought resistance of the studied species of the Ficus genus. The drought resistance of these varieties is most closely related to the proline content.

Morphological, Physiological and Biochemical Responses of Poplar Plants to Drought Stress

2018 ◽  
Vol 5 (03) ◽  
Author(s):  
ARADHNA KUMARI ◽  
IM KHAN ◽  
ANIL KUMAR SINGH ◽  
SANTOSH KUMAR SINGH
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Biochemical Parameters ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Field Capacity ◽  
Drought Event ◽  
Total Biomass ◽  
Biochemical Responses ◽  
Physiological And Biochemical

Poplar clone Kranti was selected to assess the morphological, physiological and biochemical responses under drought at different levels of water stress, as it is a common clone used to be grown in Uttarakhand for making paper and plywood. The cuttings of Populus deltoides L. (clone Kranti) were exposed to four different watering regimes (100, 75, 50 and 25% of the field capacity) and changes in physiological and biochemical parameters related with drought tolerance were recorded. Alterations in physiological (i.e. decrease in relative water content) and biochemical parameters (i.e. increase in proline and soluble sugar content and build-up of malondialdehyde by-products) occurred in all the three levels of water stress, although drought represented the major determinant. Drought treatments (75%, 50% and 25% FC) decreased plant height, radial stem diameter, harvest index, total biomass content and RWC in all the three watering regimes compared to control (100% FC). Biochemical parameters like proline, soluble sugar and MDA content increased with severity and duration of stress, which helped plants to survive under severe stress. It was analyzed that for better wood yield poplar seedlings should avail either optimum amount of water (amount nearly equal to field capacity of soil) or maximum withdrawal up to 75% of field capacity up to seedling establishment period (60 days). Furthermore, this study manifested that acclimation to drought stress is related with the rapidity, severity, and duration of the drought event of the poplar species.

scholarly journals Effect of SiO2 nanoparticles on drought resistance in hawthorn seedlings

2015 ◽  
Vol 76 (4) ◽  
pp. 350-359 ◽  
Author(s):  
Peyman Ashkavand ◽  
Masoud Tabari ◽  
Mehrdad Zarafshar ◽  
Ivana Tomášková ◽  
Daniel Struve
Keyword(s):  
Drought Stress ◽  
Drought Resistance ◽  
Crop Production ◽  
Plant Biomass ◽  
Proline Content ◽  
Carotenoid Content ◽  
Biochemical Basis ◽  
Positive Effects ◽  
Drought Conditions ◽  
Physiological And Biochemical

Abstract Drought is a significant factor limiting crop production in arid regions while hawthorns (Crataegus sp.) are an important component of such region’s forests. Therefore, treatments that increase hawthorn drought resistance may also increase transplanting success. Thus, the physiological and biochemical responses of hawthorn seedlings to a factorial combination of different concentrations of silica nanoparticles (SNPs at 0, 10, 50 and 100 mg L−1) and three soil moisture treatments (without stress, moderate stress and severe stress) were investigated. Seedlings were irrigated with one of the four concentrations of SNPs for 45 days before exposing them to drought stress. Photosynthesis parameters, malondialdehyde (MDA), relative water content (RWC), membrane electrolyte leakage (ELI) as well as chlorophyll, carotenoid, carbohydrate and proline content were determined. At the end of the experiment, positive effects by SNP pre-treatment on physiological indexes were observed during drought stress. Under drought conditions, the effect of SNPs on photosynthetic rate and stomatal conductance was evident. Although the SNPs increased plant biomass, xylem water potential and MDA content, especially under drought conditions, RWC and ELI were not affected by the SNP pre-treatments. Seedlings pre-treated with SNPs had a decreased carbohydrate and proline content under all water regimes, but especially so under drought. Total chlorophyll content and carotenoid content did not change among the treatments. Generally, the findings imply that SNPs play a positive role in maintaining critical physiological and biochemical functions in hawthorn seedlings under drought stress conditions. However, more studies are needed before the physiological and biochemical basis of induced drought resistance can be determined.

Morphological, physiological, biochemical characteristics and bud success responses of myrobolan 29 c plum rootstock subjected to water stress

2016 ◽  
Vol 96 (3) ◽  
pp. 485-493 ◽  
Author(s):  
Ibrahim Bolat ◽  
Murat Dikilitas ◽  
Ali Ikinci ◽  
Sezai Ercisli ◽  
Tahsin Tonkaz
Keyword(s):  
Water Stress ◽  
Shoot Length ◽  
Cross Sectional Area ◽  
Pot Experiment ◽  
Sectional Area ◽  
Cross Sectional ◽  
Biochemical Characteristics ◽  
Physiological And Biochemical Characteristics ◽  
Stress Levels ◽  
Physiological And Biochemical

Water stress treatments on some morphological, biomass, physiological, biochemical characteristics and budding success of apricot and plum cultivars/Myrobolan 29 C plum rootstock have been studied in a pot-experiment trial. Three different water stress levels (control-100 %, medium-75 %, and severe-50 % of the pot capacity) were applied. The results showed that measured morphological, biomass, physiological and biochemical characteristics as well as budding success of cultivars on the rootstocks were affected by water stress. Water stress, both moderate and severe, significantly decreased the relative shoot length, diameter and shoot stem cross sectional area, plant total fresh and dry weights. Increases in water stress led to increases in peroxidase activities, phenol and proline contents in plum rootstock. Increases in water stress also resulted in reduction in budding success in both Formosa (plum cv)/Myrobolan 29 C (90.00 % and 48.33 %) and San Castrese (apricot cv)/Myrobolan 29 C (87.50 % and 42.83 %).

scholarly journals Physiological and biochemical parameters of Ficus species and cultivars under dehydration conditions on the Southern coast of the Crimea

2020 ◽  
pp. 71-77
Author(s):  
O. A. Grebennikova ◽  
T. B. Gubanova
Keyword(s):  
Chlorophyll Fluorescence ◽  
Polyphenol Oxidase ◽  
Oxidase Activity ◽  
Fluorescence Induction ◽  
Proline Content ◽  
Chlorophyll Fluorescence Induction ◽  
Polyphenol Oxidase Activity ◽  
Drought Tolerant ◽  
The Crimea ◽  
Physiological And Biochemical

The results of the studies of proline content, peroxidase, catalase, polyphenol oxidase activity and chlorophyll fluorescence induction (ChFI) parameters in leaves of Ficus species and cultivars under controlled dehydration conditions are presented. It was shown that the ChFI parameters, the most sensitive to the lack of water availability, are the characteristics of the chlorophyll fluorescence fast phase. Proline content, peroxidase and polyphenol oxidase activity can be used to addition diagnose of drought resistance of the plants of the genus Ficus. The cultivars Sabrutsiya Rozovaya, Sary Stambulskij and the species F. palmata are relatively drought tolerant.

scholarly journals Effects of drought stress and rehydration on physiological and biochemical of four oak species in China

2021 ◽  
Author(s):  
Shifa Xiong ◽  
Yangdong Wang ◽  
Yicun Chen ◽  
Ming Gao ◽  
Yunxiao Zhao ◽  
...  
Keyword(s):  
Drought Stress ◽  
Treatment Group ◽  
Membership Function ◽  
Drought Resistance ◽  
Soluble Sugar ◽  
Control Group ◽  
Quercus Acutissima ◽  
Biochemical Characteristics ◽  
Physiological And Biochemical Characteristics ◽  
Physiological And Biochemical

Abstract Background: Quercus fabri Hance, Quercus serrata Thunb, Quercus acutissima Carruth, and Quercus variabilis BL are four Chinese oak species commonly used for forestation. In recent years, with the global warming caused by the greenhouse effect, seedlings in mountainous areas after afforestation often suffer seasonal drought stress, which seriously affects their survival and growth. In order to ensure the survival of seedlings, we need to select oak species with strong drought resistance. Therefore, we first need to understand the differences in drought resistance of the four oak tree species at the seedling stage, and comprehensively evaluate their drought resistance capabilities by studying the changes in the physiological and biochemical characteristics of the seedlings under continuous drought and rehydration conditions.Methods: The four oak seedlings were divided into drought-rewatering treatment group and normal watering control group. For the seedlings of the drought-rewatering treatment group, drought stress lasting 31 days was used, and then re-watering and recovering for 5 days. The water parameters, osmotic adjustment substance content, antioxidant enzyme activity and photosynthesis parameters of the seedlings in the two groups were measured every 5 days. Principal component analysis, correlation analysis and membership function were used to analyze the physiological and biochemical characteristics of the seedlings of the four oak in two groups.Results and conclusions: Compared with the control group, the relative water content, water potential, net photosynthetic rate, transpiration rate, and stomatal conductance levels of the four oaks all showed a downward trend under continuous drought stress, and showed an upward trend after rehydration. The soluble protein, soluble sugar, proline, peroxidase, superoxide dismutase and catalase content of the four oaks increased first and then decreased under drought stress, and then increased after rehydration. The content of glycine betaine and malondialdehyde continued to increase, and gradually decreased after rehydration. The weight of each index was calculated by PCA, and then the comprehensive evaluation of each index was carried out through the membership function method. The drought resistance levels of the four oak species were as follows: Q. serrata > Q. fabri > Q. variabilis > Q. acutissima.

scholarly journals The Effect of Water Stress on Some Morphological, Physiological, and Biochemical Characteristics and Bud Success on Apple and Quince Rootstocks

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Ibrahim Bolat ◽  
Murat Dikilitas ◽  
Sezai Ercisli ◽  
Ali Ikinci ◽  
Tahsin Tonkaz
Keyword(s):  
Water Stress ◽  
Shoot Length ◽  
Biochemical Characteristics ◽  
Stress Control ◽  
Physiological And Biochemical Characteristics ◽  
Relative Water ◽  
Leaf Relative Water Content ◽  
The Impact ◽  
Santa Maria ◽  
Physiological And Biochemical

The effects of different water stress (control, medium, and severe) on some morphological, physiological, and biochemical characteristics and bud success of M9 apple and MA quince rootstocks were determined. The results showed that water stress significantly affected most morphological, physiological, and biochemical characteristics as well as budding success on the both rootstocks. The increasing water stress decreased the relative shoot length, diameter, and plant total fresh and dry weights. Leaf relative water content and chlorophyll index decreased while electrolyte leakage increased with the increase of water stress in both rootstocks. An increase in water stress also resulted in reduction in budding success in Vista Bella/M9 (79.33% and 46.67%) and Santa Maria/MA (70.33% and 15.33%) combinations. However, the water stress in Santa Maria/MA was more prominent. The increase in water stress resulted in higher peroxidase activities as well as phenol contents in both rootstocks. Although catalase activity, anthocyanin, and proline contents increased with the impact of stress, this was not statistically significant. The results suggest that the impact of stress increased with the increase of water stress; therefore, growers should be careful when using M9 and MA rootstocks in both nursery and orchards where water scarcity is present.

scholarly journals Morphological, Physiological, and Biochemical Characterization of Drought-Tolerant Wheat (Triticum spp.) Varieties

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Alemayehu Tefera ◽  
Mulugeta Kebede ◽  
Kassu Tadesse ◽  
Tsegaye Getahun
Keyword(s):  
Water Stress ◽  
Plant Height ◽  
Bread Wheat ◽  
Biochemical Parameters ◽  
Agricultural Research ◽  
Field Capacity ◽  
Wheat Varieties ◽  
Triticum Spp ◽  
Relative Water ◽  
Physiological And Biochemical

Wheat is one of the most important cereal crops and extensively cultivated in wide ranges of altitudes in Ethiopia. With an alarming population growth in the era of climatic change, there is a need for further crop improvement for sustainable production. In this regard, the study was carried out at the Kulumsa Agricultural Research Center (KARC) in a rainout shelter to investigate the responses of durum and bread wheat varieties to soil water stress in terms of selected morphological, physiological, and biochemical parameters. The 2 factors were combined factorially and arranged in a randomized complete block design with 3 replications. The 12 wheat varieties, 6 bread wheat and other 6 durum wheat, were sown in pots under well-watered (100% field capacity) and water-stressed (30% field capacity) conditions. Results revealed that water stress resulted in 26%, 9%, 23%, 16%, and 11% reductions in plant height, spike length, number of spikelets spike−1, relative water, and chlorophyll contents, respectively. The tested wheat varieties under water stress produced 28% and 6% more proline content and total soluble sugar, respectively, as mitigation strategies against drought. Results further exhibited that wheat varieties significantly differed in all of the measured traits except for the plant height and relative water content. The present study verified that the biochemical parameters needs to be considered as better traits to select wheat (Triticum spp.) varieties for drought tolerance under water stress conditions.

scholarly journals Dynamics of physiological and biochemical indicators of apricot cultivars under water stress

2021 ◽  
pp. 69-76
Author(s):  
R. A. Pilkevich ◽  
I. N. Paliy ◽  
A. E. Paliy
Keyword(s):  
Water Stress ◽  
Prunus Armeniaca ◽  
Summer Drought ◽  
Research Information ◽  
Physiological And Biochemical Characteristics ◽  
The Crimea ◽  
Leaf Surface Area ◽  
Leaf Tissues ◽  
High Level ◽  
Physiological And Biochemical

The results of the study of drought resistance of 4 cultivars Prunus armeniaca Lam bred in the Nikitsky Botanical Gardens are presented. The dynamics of indicators of the water regime of leaves, the content of photosynthetic pigments and phenolic compounds in them has been studied. As a result of the research, information was obtained on the physiological and biochemical characteristics of apricot against the background of adaptation to stressful conditions created by moisture deficit during the summer drought on the Southern Coast of the Crimea. Significant differences were revealed in the ability to retain moisture during wilting, the ability to restore tissue turgor after critical dehydration, the concentration of chlorophylls and phenolic substances in the cultivars of different resistance to water stress. The promising drought-resistant genotypes 'Professor Smykov' and 'Kazachok' have been identified, demonstrating a relatively high level of water-retaining forces of leaf tissues and reparation of the leaf surface area.

scholarly journals Pengaruh Cekaman Kekeringan Terhadap Kandungan Klorofil dan Prolin Daun Kedelai

2016 ◽  
Vol 15 (2) ◽  
pp. 172-179
Author(s):  
Pienyani Rosawanti
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Drought Resistance ◽  
Accumulation Rate ◽  
Physiological Responses ◽  
Proline Content ◽  
Effect Of Water

The study of physiological responses of soybean to drought stress could be a useful tool to the understanding of the mechanisms of drought resistance. Study was conducted to evaluate the effect of water stress on chlorophyll and prolin accumulation rate. This study was conducted in the Cikabayan greenhouse IPB using ten genotypes of soybean (Ratai, Seulawah, Slamet, Tanggamus, Wilis, GC 22-10, PG 57-1, SC 21-5, SC 39-1, SP 30-4) and PEG (0%, 20%). The result showed that drought stress with PEG simulation significant effect on chlorophyll and proline content.

Sign in / Sign up

Export Citation Format

Share Document