keyword
MENU ▼
Read by QxMD icon Read
search

Plant hormone

keyword
https://www.readbyqxmd.com/read/29150547/the-tomato-della-protein-procera-acts-in-guard-cells-to-promote-stomatal-closure
#1
Ido Nir, Hagai Shohat, Irina Panizel, Neil E Olszewski, Asaph Aharoni, David Weiss
Plants employ stomatal closure and reduced growth to avoid water deficiency damage. Reduced levels of the growth-promoting hormone gibberellin (GA) lead to increased tolerance to water deficit, but the underlying mechanism is unknown. Here, we show that the tomato (Solanum lycopersicum) DELLA protein PROCERA (PRO), a negative regulator of GA signaling, acts in guard cells to promote stomatal closure and reduce water loss in response to water deficiency by increasing abscisic acid (ABA) sensitivity. The loss-of-function pro mutant exhibited increased stomatal conductance and rapid wilting under water-deficit stress...
November 17, 2017: Plant Cell
https://www.readbyqxmd.com/read/29149676/high-salt-diet-decreases-reproductive-performance-in-rams-and-down-regulates-gene-expression-of-some-components-of-the-renin-angiotensin-system-in-the-testis
#2
Yi Fang, Rongzhen Zhong, Xuezhao Sun, Daowei Zhou
Although salt-tolerant plants can be used to combat dryland salinity, these plants contain high concentrations of salt (NaCl), which may have deleterious effects if fed to livestock. Twenty-four Merino rams (9 mo of age) with similar body weight were equally allocated to two groups and fed a normal- or high-salt diet (0.5 and 12% NaCl, respectively) for 3 mo. Rams fed the high-salt diet had lower live weight gains, higher water intake, smaller testes (466 ± 48.4 vs 604 ± 51.1 g) and reductions (P <0...
November 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/29149646/dependence-of-growth-inhibiting-action-of-increased-planting-density-on-capacity-of-lettuce-plants-to-synthesize-aba
#3
Lidiya B Vysotskaya, Tatyana N Arkhipova, Guzel R Kudoyarova, Stanislav Yu Veselov
Inhibition of lettuce plant growth under increased planting density was accompanied by accumulation of abscisic acid (ABA) in the shoots of competing plants. To check causal relationship between these responses we studied the effect of decreased synthesis of ABA on growth indexes and hormonal balance of lettuce plants under elevated density of their planting (one (single) or three (competing) plants per pot). Herbicide fluridone was used to inhibit ABA synthesis. Preliminary experiments with single plants showed that presence of fluridone in the soil solution at rather low concentration (0...
November 11, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29148981/walnut-leaf-extract-acts-as-a-fertility-agent-in-male-wistar-albino-rats-a-search-for-herbal-male-fertility-enhancer
#4
Seun F Akomolafe, Ganiyu Oboh
Background Walnut leaf is one of the many medicinal plants used in folklore as male fertility enhancers. The present work was therefore undertaken with an aim to scientifically validate this claim. As such, we evaluated the effect of the aqueous extract from walnut leaves on biomolecules related to fertility in adult male rats and its mode of action as fertility-enhancing agent. Methods Twenty-five rats were randomly divided into five groups of five animals each; Group 1 served as control and received normal (0...
November 17, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/29145720/phospholipase-d-and-its-essential-role-in-cancer
#5
Ju Hwan Cho, Joong-Soo Han
The role of Phospholipase D (PLD) in cancer development and management has been a major area of interest for researchers. The purpose of this mini-review is to explore PLD and its distinct role during chemotherapy including anti-apoptotic function. PLD is an enzyme that belongs to the phospholipase super family and is found in a broad range of organisms such as viruses, yeast, bacteria, animals, and plants. The function and activity of PLD are widely dependent on and regulated by neurotransmitters, hormones, small monomeric GTPases, and lipids...
November 16, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/29145642/arf2-4-and-arf5-are-essential-for-female-and-male-gametophyte-development-in-arabidopsis
#6
Zhenning Liu, Liming Miao, Ruxue Huo, Xiaoya Song, Johnson Cameron, Lijun Kong, Venkatesan Sundaresan, Xiaolin Yu
The plant hormone auxin plays critical roles in plant growth and development. Auxin response factors (ARFs) are a class of transcription factors which regulate auxin-mediated gene expression. While the functions of ARFs in sporophytic development have been well characterized, their functions specific to gametophytic development have not been studied extensively. In this study, Arabidopsis ARF genes were selectively down-regulated in gametophytes by mis-expression of targeted microRNAs (amiRARF234, amiRARFMP and MIR167a) to silence AtARF2-4, AtARF5, AtARF6 and AtARF8...
November 14, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29143658/a-key-enzyme-of-animal-steroidogenesis-can-function-in-plants-enhancing-their-immunity-and-accelerating-the-processes-of-growth-and-development
#7
George V Shpakovski, Svetlana G Spivak, Irina N Berdichevets, Olga G Babak, Svetlana V Kubrak, Alexander V Kilchevsky, Andrey V Aralov, Ivan Yu Slovokhotov, Dmitry G Shpakovski, Ekaterina N Baranova, Marat R Khaliluev, Elena K Shematorova
BACKGROUND: The initial stage of the biosynthesis of steroid hormones in animals occurs in the mitochondria of steroidogenic tissues, where cytochrome P450SCC (CYP11A1) encoded by the CYP11A1 gene catalyzes the conversion of cholesterol into pregnenolone - the general precursor of all the steroid hormones, starting with progesterone. This stage is missing in plants where mitochondrial cytochromes P450 (the mito CYP clan) have not been found. Generating transgenic plants with a mitochondrial type P450 from animals would offer an interesting option to verify whether plant mitochondria could serve as another site of P450 monooxygenase reaction for the steroid hormones biosynthesis...
November 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29143394/bactericera-cockerelli-vitellogenin-6-like-a-vitellogenin-without-a-direct-reproductive-function
#8
F Ibanez, X Tang, C Tamborindeguy
Vitellogenin-like proteins are members of the large lipid transfer proteins, a family of proteins involved in reproduction, lipid circulation and immune defences. In this study, we identified a new Bactericera cockerelli vitellogenin-like (Vg-like) transcript, and named it BcVg6-like based on its similarity to Acyrthosiphon pisum Vg6. In silico analyses predicted different conserved domains in BcVg6-like compared with the conventional Ba. cockerelli vitellogenin, BcVg1-like, previously described by our research group...
November 16, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/29142397/chemical-composition-antimicrobial-and-antitumor-potentiality-of-essential-oil-of-ferula-tingitana-l-apiaceae-grow-in-libya
#9
Waleed Elghwaji, Abeer Mohamed El-Sayed, Kadriya S El-Deeb, Aly M ElSayed
Background: Ferula tingitana L. (Apiaceae) has been considered to have abortive and menstruation-inducing properties. It used to treat sore throat, fever, indigestion, and pains. Objectives: The objective of this study is to establish the chemical composition of the essential oil of flower, leaves of F. tingitana, and to throw light on antimicrobial, cytotoxic activities of Libyan plant. Materials and Methods: The chemical composition of the essential oil of flower (0...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29141545/main-isoflavones-found-in-dietary-sources-as-natural-anti-inflammatory-agents
#10
Corina Danciu, Stefana Avram, Ioana Pavel, Roxana Ghiulai, Cristina Dehelean, Alexa Ersilia, Daliana Minda, Cristina Petrescu, Elena Moaca, Codruta Soica
BACKGROUND: Isoflavones are natural compounds belonging to the class of isoflavonoids, molecules with a chemical structure based on the 3-phenyl chromen-4-one backbone. As a particular element, the isoflavones are called also phytoestrogens, due to the structural similarity with 17-β estradiol, the primary female sex hormone, presenting both estrogen-agonist and estrogen-antagonist properties. This class of secondary plant metabolites has been extensively reported in the literature for a wide range of therapeutic activities including antioxidant, chemopreventive, anti-inflammatory, anti-allergic, antibacterial, cardio preventive effects...
November 9, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/29138433/transcriptomic-analysis-of-the-regulation-of-stalk-development-in-flowering-chinese-cabbage-brassica-campestris-by-rna-sequencing
#11
Xinmin Huang, Yuling Lei, Hongling Guan, Yanwei Hao, Houcheng Liu, Guangwen Sun, Riyuan Chen, Shiwei Song
Flowering Chinese cabbage is a stalk vegetable whose quality and yield are directly related to stalk development. However, no comprehensive investigations on stalk development have been performed. To address this issue, the present study used RNA sequencing to investigate transcriptional regulation at three key stages (seedling, bolting, and flowering) of stalk development in flowering Chinese cabbage. Anatomical analysis revealed that cell division was the main mode of stalk thickening and elongation at all key stages...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138416/plant-to-plant-communication-triggered-by-systemin-primes-anti-herbivore-resistance-in-tomato
#12
Mariangela Coppola, Pasquale Cascone, Valentina Madonna, Ilaria Di Lelio, Francesco Esposito, Concetta Avitabile, Alessandra Romanelli, Emilio Guerrieri, Alessia Vitiello, Francesco Pennacchio, Rosa Rao, Giandomenico Corrado
Plants actively respond to herbivory by inducing various defense mechanisms in both damaged (locally) and non-damaged tissues (systemically). In addition, it is currently widely accepted that plant-to-plant communication allows specific neighbors to be warned of likely incoming stress (defense priming). Systemin is a plant peptide hormone promoting the systemic response to herbivory in tomato. This 18-aa peptide is also able to induce the release of bioactive Volatile Organic Compounds, thus also promoting the interaction between the tomato and the third trophic level (e...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29135338/convergent-and-divergent-signaling-in-pamp-triggered-immunity-and-effector-triggered-immunity
#13
Yujun Peng, Rowan van Wersch, Yuelin Zhang
Plants use diverse immune receptors to sense pathogen attacks. Recognition of pathogen-associated molecular patterns (PAMPs) by pattern recognition receptors localized on the plasma membrane leads to PAMP-triggered immunity (PTI). Detection of pathogen effectors by intracellular or plasma membrane-localized immune receptors results in effector-triggered immunity (ETI). Despite the large variations in the magnitude and duration of immune responses triggered by different PAMPs or pathogen effectors during PTI and ETI, plasma membrane-localized immune receptors activate similar downstream molecular events such as MAP kinase activation, oxidative burst, ion influx and increased biosynthesis of plant defense hormones, indicating that defense signals initiated at the plasma membrane converge at later points...
November 14, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29132375/comparative-transcriptome-analysis-of-soybean-response-to-bean-pyralid-larvae
#14
Weiying Zeng, Zudong Sun, Zhaoyan Cai, Huaizhu Chen, Zhenguang Lai, Shouzhen Yang, Xiangmin Tang
BACKGROUND: Soybean is one of most important oilseed crop worldwide, however, its production is often limited by many insect pests. Bean pyralid is one of the major soybean leaf-feeding insects in China. To explore the defense mechanisms of soybean resistance to bean pyralid, the comparative transcriptome sequencing was completed between the leaves infested with bean pyralid larvae and no worm of soybean (Gantai-2-2 and Wan82-178) on the Illumina HiSeq™ 2000 platform. RESULTS: In total, we identified 1744 differentially expressed genes (DEGs) in the leaves of Gantai-2-2 (1064) and Wan82-178 (680) fed by bean pyralid for 48 h, compared to 0 h...
November 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29131853/transcriptome-analysis-of-crossostephium-chinensis-provides-insight-into-the-molecular-basis-of-salinity-stress-responses
#15
Haiyan Yang, Ming Sun, Shuangji Lin, Yanhong Guo, Yongjuan Yang, Tengxun Zhang, Jingxing Zhang
Soil salinization is becoming a limitation to the utilization of ornamental plants worldwide. Crossostephium chinensis (Linnaeus) Makino is often cultivated along the southeast coast of China for its desirable ornamental qualities and high salt tolerance. However, little is known about the genomic background of the salt tolerance mechanism in C. chinensis. In the present study, we used Illumina paired-end sequencing to systematically investigate leaf transcriptomes derived from C. chinensis seedlings grown under normal conditions and under salt stress...
2017: PloS One
https://www.readbyqxmd.com/read/29131127/pleiotropic-effects-of-white-willow-bark-and-1-2-decanediol-on-human-adult-keratinocytes
#16
Eleonora Bassino, Franco Gasparri, Luca Munaron
BACKGROUND: Acne vulgaris is a common skin defect, usually occurring during adolescence, but often it can persist in adults leaving permanent face scarring. Acne is usually treated with topical drugs, oral antibiotics, retinoids, and hormonal therapies, but medicinal plants are increasingly employed. OBJECTIVE: To investigate the protective role of white willow bark (WWB) and 1,2-decanediol (DD) on the damage caused by lipopolysaccharides (LPS) on human adult keratinocytes (HaCaT)...
November 8, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/29129288/overturning-dogma-tolerance-of-insects-to-mixed-sterol-diets-is-not-universal
#17
REVIEW
Spencer T Behmer
Insects cannot synthesize sterols de novo, but like all eukaryotes they use them as cell membrane inserts where they influence membrane fluidity and rigidity. They also use a small amount for metabolic purposes, most notably as essential precursors for steroid hormones. It has been a long-held view that most insects require a small amount of specific sterol (often cholesterol) for metabolic purposes, but for membrane purposes (where the bulk of sterols are used) specificity in sterol structure was less important...
October 2017: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/29129016/exploring-genes-involved-in-benzoic-acid-biosynthesis-in-the-populus-davidiana-transcriptome-and-their-transcriptional-activity-upon-methyl-jasmonate-treatment
#18
Seong-Bum Park, Jong Youn Kim, Jung Yeon Han, Chang-Ho Ahn, Eung-Jun Park, Yong Eui Choi
Benzoic acids (BAs) are important structural elements in a wide variety of essential compounds and natural products, and play crucial roles in plant fitness. BA is a precursor of diverse benzenoid compounds, including the hormone salicylic acid (SA) and the aglycone moiety of salicin, which is particularly important in the Salicaceae family. The biosynthetic pathways leading to BA formation in plants are largely unknown. Recently, the CoA-dependent β-oxidative BA biosynthesis pathway, which occurs in peroxisomes, has been characterized in petunia...
November 11, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/29127912/pesticides-contaminated-dust-exposure-risk-diagnosis-and-exposure-markers-in-occupational-and-residential-settings-of-lahore-pakistan
#19
Sidra Waheed, Crispin Halsall, Andrew J Sweetman, Kevin C Jones, Riffat Naseem Malik
There are few studies documenting the dust loaded with pesticides as a potential non-dietary exposure source for occupational worker and populations living near agricultural farms and pesticides formulation plants. In present study we have evaluated the pesticide concentration in dust from potential sites and relevant health risk from dust ingestion. Furthermore, the effect of currently used pesticides was investigated on blood and urine parameters of subjects: farmer, factory worker, urban resident and rural resident and controlled subjects with presumably different levels of exposure...
November 7, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29126242/differential-manipulation-of-leaf-angle-throughout-the-canopy-current-status-and-prospects
#20
Maria Betsabe Mantilla-Perez, Maria G Salas Fernandez
Leaf angle is defined as the inclination between the midrib of the leaf blade and the vertical stem of a plant. This trait has been identified as a key component in the development of high-yielding varieties of cereal species, particularly maize, rice, wheat, and sorghum. The effect of leaf angle on light interception efficiency, photosynthetic rate, and yield has been investigated since the 1960s, yet, significant knowledge gaps remain in understanding the genetic control of this complex trait. Recent advances in physiology and modeling have proposed a plant ideotype with varying leaf angles throughout the canopy...
November 6, 2017: Journal of Experimental Botany
keyword
keyword
48733
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"