keyword
MENU ▼
Read by QxMD icon Read
search

Plant physiology

keyword
https://www.readbyqxmd.com/read/28330316/phytotoxicity-and-oxidative-stress-perspective-of-two-selected-nanoparticles-in-brassica-juncea
#1
Sunita Rao, Gyan Singh Shekhawat
This study elaborates the consequences of oxidative stress caused by copper oxide (CuO) and titanium dioxide (TiO2) nanoparticles (NPs) in Brassica juncea. Effect of these two NPs on plant physiology, reactive oxygen scavenging enzyme system (ascorbate peroxidase, catalase, superoxide dismutase), proline content and lipid peroxidation has been estimated in leaves as well as root tissues. Bioaccumulation of NPs has also been evaluated in the current study and the interrelated cascade of the enzymatic system with H2O2 production was identified...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330141/evaluation-of-biochemical-markers-during-somatic-embryogenesis-in-silybum-marianum-l
#2
Bilal Haider Abbasi, Huma Ali, Buhara Yücesan, Sabahat Saeed, Khalid Rehman, Mubarak Ali Khan
In present report effects of explants type, basal media and plant growth regulators (PGRs) were tested for induction of indirect somatic embryogenesis in medicinally important plant Silybum marianum L. Leaf, petiole and root explants were exploited in vitro on B5 (Gamborg), SH (Schenk and Hildebrandt) and MS (Murashige and Skoog) media for induction of embryogenic callus followed by somatic embryogenesis. Highest callus induction frequency (76 ± 4.8 %) was recorded when petiole explants of in vitro derived plantlets were cultured on B5 medium supplemented with 1...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330124/somaclonal-variations-and-their-applications-in-horticultural-crops-improvement
#3
REVIEW
Hare Krishna, Mahdi Alizadeh, Dhurendra Singh, Udayvir Singh, Nitesh Chauhan, Maliheh Eftekhari, Radha Kishan Sadh
The advancements made in tissue culture techniques has made it possible to regenerate various horticultural species in vitro as micropropagation protocols for commercial scale multiplication are available for a wide range of crops. Clonal propagation and preservation of elite genotypes, selected for their superior characteristics, require high degree of genetic uniformity amongst the regenerated plants. However, plant tissue culture may generate genetic variability, i.e., somaclonal variations as a result of gene mutation or changes in epigenetic marks...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330073/cladosporium-cladosporioides-from-the-perspectives-of-medical-and-biotechnological-approaches
#4
REVIEW
Manaf AlMatar, Essam A Makky
Fungi are important natural product sources that have enormous potential for the production of novel compounds for use in pharmacology, agricultural applications and industry. Compared with other natural sources such as plants, fungi are highly diverse but understudied. However, research on Cladosporium cladosporioides revealed the existence of bioactive products such as p-methylbenzoic acid, ergosterol peroxide (EP) and calphostin C as well as enzymes including pectin methylesterase (PME), polygalacturonase (PG) and chlorpyrifos hydrolase...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28325832/physiological-effects-of-temperature-do-not-explain-prevalence-of-females-in-populations-of-gynodioecious-lobelia-siphilitica-growing-in-warmer-climates
#5
Maia F Bailey, Andrea L Case, Christina M Caruso
PREMISE OF THE STUDY: Gynodioecy is a sexual polymorphism whereby female and hermaphroditic plants co-occur within populations. In many gynodioecious species, stressful abiotic environments are associated with higher frequencies of females. This association suggests that abiotic stress affects the relative fitness of females and hermaphrodites and, thus, the maintenance of gynodioecy. METHODS: To test whether abiotic stress affects the fitness of females and hermaphrodites, we grew open-pollinated Lobelia siphilitica families in temperature regimes characteristic of the southern portion of the species' range (where females are common) and the northern portion of the range (where females are rare)...
March 21, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28324842/phenotypical-physiological-and-biochemical-analyses-provide-insight-into-selenium-induced-phytotoxicity-in-rice-plants
#6
Mohammad Golam Mostofa, Mohammad Anwar Hossain, Md Nurealam Siddiqui, Masayuki Fujita, Lam-Son Phan Tran
The present study investigated the phenotypical, physiological and biochemical changes of rice plants exposed to high selenium (Se) concentrations to gain an insight into Se-induced phytotoxicity. Results showed that exposure of rice plants to excessive Se resulted in growth retardation and biomass reduction in connection with the decreased levels of chlorophyll, carotenoids and soluble proteins. The reduced water status and an associated increase in sugar and proline levels indicated Se-induced osmotic stress in rice plants...
March 11, 2017: Chemosphere
https://www.readbyqxmd.com/read/28324818/exogenous-malic-acid-alleviates-cadmium-toxicity-in-miscanthus-sacchariflorus-through-enhancing-photosynthetic-capacity-and-restraining-ros-accumulation
#7
Haipeng Guo, Houming Chen, Chuntao Hong, Dean Jiang, Bingsong Zheng
Malic acid (MA) plays an important role in the regulation of plant growth, stomatal aperture, nutrition elements homeostasis and toxic metals tolerance. However, little is known about the effects of exogenous MA on physiological and biochemical responses to toxic metals in plants. To measure the alleviation roles of exogenous MA against cadmium (Cd), we determined the effects of MA on plant growth, net photosynthetic rate (Pn), reactive oxygen species (ROS) accumulation and the activities of anti-oxidant enzymes in the leaves of Miscanthus sacchariflorus (M...
March 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28322092/physico-chemical-changes-in-karkade-hibiscus-sabdariffa-l-seedlings-responding-to-salt-stress
#8
Abdelnasser Galal
Salinity is one of the major abiotic stress factors affecting series of morphological, physiological, metabolic and molecular changes in plant growth. The effect of different concentrations (0, 25, 50, 100 and 150 mM) of NaCl on the vegetative growth and some physiological parameters of karkade (Hibiscus sabdariffa var. sabdariffa) seedling were investigated. NaCl affected the germination rate, delayed emergence and retarded vegetative growth of seedlings. The length of seedling as well as the leaf area was significantly reduced...
March 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28322087/physiological-role-of-exogenous-nitric-oxide-in-improving-performance-yield-and-some-biochemical-aspects-of-sunflower-plant-under-zinc-stress
#9
Samia Ageeb Akladious, Heba Ibrahim Mohamed
The present study was undertaken to examine the possible roles of sodium nitroprusside in protection against oxidative damage due to zinc toxicity in sunflower plants. Physiochemical parameters in sunflower plants exposed to Zn(2+) (100, 200 and 300 mg/kg soil) alone or combined with SNP were measured. The results showed that excess of Zn decreased plant growth, seed yield components and photosynthetic pigments content. On the other hand, Zn stress increased the level of non-enzymatic antioxidants (ascorbic acid and reduced glutathione) and enzymatic antioxidants (superoxide dismutase, ascrobate peroxidase and glutathione reductase), coupled with the appearance of novel protein bands...
March 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28321909/characterization-of-candidate-odorant-binding-proteins-and-chemosensory-proteins-in-the-tea-geometrid-ectropis-obliqua-prout-lepidoptera-geometridae
#10
Liang Sun, Teng-Fei Mao, Yu-Xing Zhang, Jian-Jian Wu, Jia-He Bai, Ya-Nan Zhang, Xing-Chuan Jiang, Kun-Shan Yin, Yu-Yuan Guo, Yong-Jun Zhang, Qiang Xiao
Insects rely heavily on their sophisticated chemosensory systems to locate host plants and find conspecific mates. Although the molecular mechanisms of odorant recognition in many Lepidoptera species have been well explored, limited information has been reported on the geometrid moth Ectropis obliqua Prout, an economically important pest of tea plants. In the current study, we first attempted to identify and characterize the putative olfactory carrier proteins, including odorant-binding proteins (OBPs) and chemosensory proteins (CSPs)...
March 21, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28321883/higher-photosynthesis-nutrient-and-energy-use-efficiencies-contribute-to-invasiveness-of-exotic-plants-in-a-nutrient-poor-habitat-in-northeast-china
#11
Ming-Chao Liu, De-Liang Kong, Xiu-Rong Lu, Kai Huang, Shuo Wang, Wei-Bin Wang, Bo Qu, Yu-Long Feng
The roles of photosynthesis-related traits in invasiveness of introduced plant species are still not well elucidated, especially in nutrient-poor habitats. In addition, little effort has been made to determine the physiological causes and consequences of the difference in these traits between invasive and native plants. To address these problems, we compared the differences in 16 leaf functional traits related to light-saturated photosynthetic rate (Pmax ) between 22 invasive and native plants in a nutrient-poor habitat in northeast China...
March 20, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28321518/identification-and-characterization-of-durum-wheat-micrornas-in-leaf-and-root-tissues
#12
Veronica Fileccia, Edoardo Bertolini, Paolo Ruisi, Dario Giambalvo, Alfonso Salvatore Frenda, Gina Cannarozzi, Zerihun Tadele, Cristina Crosatti, Federico Martinelli
MicroRNAs are a class of post-transcriptional regulators of plant developmental and physiological processes and responses to environmental stresses. Here, we present the study regarding the annotation and characterization of MIR genes conducted in durum wheat. We characterized the miRNAome of leaf and root tissues at tillering stage under two environmental conditions: irrigated with 100% (control) and 55% of evapotranspiration (early water stress). In total, 90 microRNAs were identified, of which 32 were classified as putative novel and species-specific miRNAs...
March 20, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28321263/the-tree-drought-emission-monitor-tree-demon-an-innovative-system-for-assessing-biogenic-volatile-organic-compounds-emission-from-plants
#13
Marvin Lüpke, Rainer Steinbrecher, Michael Leuchner, Annette Menzel
BACKGROUND: Biogenic volatile organic compounds (BVOC) emitted by plants play an important role for ecological and physiological processes, for example as response to stressors. These emitted compounds are involved in chemical processes within the atmosphere and contribute to the formation of aerosols and ozone. Direct measurement of BVOC emissions requires a specialized sample system in order to obtain repeatable and comparable results. These systems need to be constructed carefully since BVOC measurements may be disturbed by several side effects, e...
2017: Plant Methods
https://www.readbyqxmd.com/read/28320293/regulatory-peptides-in-plants
#14
REVIEW
B F Vanyushin, V V Ashapkin, N I Aleksandrushkina
Many different peptides regulating cell differentiation, growth, and development are found in plants. Peptides participate in regulation of plant ontogenesis starting from pollination, pollen tube growth, and the very early stages of embryogenesis, including formation of embryo and endosperm. They direct differentiation of meristematic stem cells, formation of tissues and individual organs, take part in regulation of aging, fruit maturation, and abscission of plant parts associated with apoptosis. Biological activity of peptides is observed at very low concentrations, and it has mainly signal nature and hormonal character...
February 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28319794/apoplastic-gamma-glutamyl-transferase-activity-encoded-by-ggt1-and-ggt2-is-important-for-vegetative-and-generative-development
#15
Sabrina Giaretta, Dinesh Prasad, Ilaria Forieri, Teofilo Vamerali, Anna Rita Trentin, Markus Wirtz, Rüdiger Hell, Antonio Masi
Gamma-glutamyl transferase (GGT; EC 2.3.2.2) is the only enzyme capable of degrading glutathione (GSH) in extra-cytosolic spaces. In plant cells, the GGT1 and GGT2 isoforms are located in the apoplast, bound respectively to the cell wall and the plasma membrane. GGT1 is expressed throughout plants, mainly in the leaves and vascular system, while GGT2 is more specifically expressed in seeds and trichomes, and weakly in roots. Their role in plant physiology remains to be clarified, however. Obtaining the ggt1/ggt2 double mutant can offer more clues than the corresponding single mutants, and to prevent any compensatory expression between the two isoforms...
March 10, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28319153/a-general-model-for-metabolic-scaling-in-self-similar-asymmetric-networks
#16
Alexander Byers Brummer, Van M Savage, Brian J Enquist
How a particular attribute of an organism changes or scales with its body size is known as an allometry. Biological allometries, such as metabolic scaling, have been hypothesized to result from selection to maximize how vascular networks fill space yet minimize internal transport distances and resistances. The West, Brown, Enquist (WBE) model argues that these two principles (space-filling and energy minimization) are (i) general principles underlying the evolution of the diversity of biological networks across plants and animals and (ii) can be used to predict how the resulting geometry of biological networks then governs their allometric scaling...
March 20, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28316047/exogenous-application-of-plant-growth-regulators-pgrs-induces-chilling-tolerance-in-short-duration-hybrid-maize
#17
Muhammad Ahmed Waqas, Imran Khan, Muhammad Javaid Akhter, Mehmood Ali Noor, Umair Ashraf
Chilling stress hampers the optimal performance of maize under field conditions precipitously by inducing oxidative stress. To confer the damaging effects of chilling stress, the present study aimed to investigate the effects of some natural and synthetic plant growth regulators, i.e., salicylic acid (SA), thiourea (TU), sorghum water extract (SWE), and moringa leaf extract (MLE) on chilling stress tolerance in autumn maize hybrid. Foliar application of growth regulators at low concentrations was carried out at six leaf (V6) and tasseling stages...
March 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28315793/highlighting-the-effects-of-coumarin-on-adult-plants-of-arabidopsis-thaliana-l-heynh-by-an-integrated-omic-approach
#18
Fabrizio Araniti, Monica Scognamiglio, Angela Chambery, Rosita Russo, Assunta Esposito, Brigida D'Abrosca, Antonio Fiorentino, Antonio Lupini, Francesco Sunseri, Maria Rosa Abenavoli
In this study, the effects of the allelochemical coumarin through a metabolomic, proteomic and morpho-physiological approach in Arabidopsis adult plants (25days old) were investigated. Metabolomic analysis evidenced an increment of amino acids and a high accumulation of soluble sugars, after 6days of coumarin treatment. This effect was accompanied by a strong decrease on plant fresh and dry weights, as well as on total protein content. On the contrary, coumarin did not affect leaf number but caused a reduction in leaf area...
March 1, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28315469/nitric-oxide-dioxygenase-and-peroxidase-activity-of-arabidopsis-phytoglobin3-and-its-potential-role-in-pathogen-defense
#19
Nitika Mukhi, Suman Kundu, Jagreet Kaur
Phytoglobin 3 appears to be ubiquitous in plants, yet there has been dearth of evidence for their potent physiological functions. Previous crystallographic studies suggest a potent NO dioxygenase activity of Arabidopsis phytoglobin 3 (AHb3). The present work examined the in vivo function of AHb3 in plant physiology and its role in biotic stress using Arabidopsis- Sclerotinia sclerotorium pathosystem. The gene was found to be ubiquitously expressed in all plant tissues, with moderately increased expression in roots...
March 14, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28315242/profiling-of-protein-n-termini-and-their-modifications-in-complex-samples
#20
Fatih Demir, Stefan Niedermaier, Jayachandran N Kizhakkedathu, Pitter F Huesgen
Protein N termini are a unique window to the functional state of the proteome, revealing translation initiation sites, co-translation truncation and modification, posttranslational maturation, and further proteolytic processing into different proteoforms with distinct functions. As a direct readout of proteolytic activity, protein N termini further reveal proteolytic regulation of diverse biological processes and provide a route to determine specific substrates and hence the physiological functions for any protease of interest...
2017: Methods in Molecular Biology
keyword
keyword
21620
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"