A testimony of inter-plant communication through electrophysiological signal analysis

Communications in Plant Sciences, vol 7, issues 1-2, p.34-43, 2017 (2017006)

DOI: http://dx.doi.org/10.26814/cps2017006

Authors: Kavya Sai Yaddanapudia, Neetu Soodb, and Indu Sainic

Abstract: Plant responses to changes in environment are allied with electrical excitability, signaling and are observed by their electrophysiological signals. Similarly communication in between various plants is noticed by continuous monitoring of their electrophysiological signals at same instant comparatively. Signal acquisition is done with help of BIOPAC®MP36 set up. Two plants of different species connected to two different channels at a time clearly visualized the amplitudes and frequencies with which plants pulsated during their sensory perception, communication and adaptation to eventual stimuli. The variation in signal potentials of plants depend upon intensity of stimulus perceived either from environment or neighboring plant. They communicate with each other through electrical signals using air as a medium; they are conscious enough to aware neighborhood about hazards and threats. This paper presents in detail the potential and frequency variations that plants illustrate during Inter-plant communication.

Highlighted Conclusion
The meticulous sensory perception of plants when they endure mechanical, heat and chemical stimuli clearly revealed that plants are highly sensitive to environmental changes. The communication in plants is not only intra-specific but from experimental results it is concluded that plants are good enough in stress/danger perception and self-defense clearly inter-plant communication exists.

Keywords: Action potential, Variation potential, Amplitude, Frequency, Depolarization, Hyperpolarization.

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Path analysis and traits correlation in soybean

Communications in Plant Sciences, vol 7, issues 1-2, p.27-33, 2017 (2017005)

DOI: http://dx.doi.org/10.26814/cps2017005

Full title: Path analysis and traits correlation in soybean

Authors: Fabiano Faria Bisinotto, Osvaldo Toshiuki Hamawaki, Ana Paula Oliveira Nogueira, Raphael Lemes Hamawaki, Jacqueline Siqueira Glansenapp, and Cristiane Lemes Hamawaki

Abstract: This work aimed to study agronomic traits of soybean genotypes by path analysis and correlation estimates. We have used a randomized complete block design to assess 35 soybean genotypes with three replications, which 31 lines were from the breeding program of the Federal University of Uberlândia, Brazil, plus four commercial cultivars. We have assessed features number of days to the blooming, plant height at blooming, number of days to maturity, plant height at maturity, first pod height, number of nodes on the main stem at maturity, number of pods with one, two and three seeds per plant, total number of pods per plant, number of seeds per pod and grain yield. The features plant height at maturity and number of nodes at maturity have presented significant correlations phenotypic and genotypic positive. 100-seed weight was positively correlated with grain yield shown high direct phenotypic and genotypic effects being, therefore, useful for indirect selection aiming the grain yield increase.

Highlighted Conclusion
The approaches correlation and path analysis of agronomic traits of major importance in soybean lines are efficient in assessing interconnections between yield and other agronomic traits in soybean. The features plant height at maturity and number of nodes are positively correlated. 100-seed weight is positively correlated to grain yield, and correlations between the number of days to the blooming and average weight of 100 seeds are negative.

Keywords: Glycine max, Grain yield, Agronomic traits.

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Plant phenolic compounds and health benefits

Communications in Plant Sciences, vol 7, issues 12-, p.20-26, 2017 (2017004)

DOI: http://dx.doi.org/10.26814/cps2017004

Authors: Oluwole Oladeji and Funmilayo Adelowo

Abstract: The growing rate of the activities of microbes increases every day. Virtually everything that surrounds man are contaminated and polluted with these microbes. These contaminations have led to some infectious and contagious diseases some of which are curable and others deadly. The advancement in Science and Technology have helped reduced this problems to certain level. In doing this, different researches have been carried out on medicinal plants in order to combat these problems.  In this research, phenolic compounds were found broadly distributed in the plant kingdom and are the most abundant secondary metabolites of plants. They are reactive metabolites in a wide range of plant-derived foods and mainly divided in four groups: phenolic acids, flavonoids, stilbenes and tannins. They work as terminators of free radicals and chelators of metal ions that are capable of catalyzing lipid oxidation. Therefore, this review examines the functional properties of phenolics and their health benefits.

Highlighted Conclusion
The introduction of natural antimicrobial and antioxidant agents that are environmental friendly and non-pollutant or contaminate the environment are inevitable.

Keywords: Chelators, Free radicals, Lipid oxidation, Microbes, Phenolics, Phenolic compounds, Secondary metabolites.

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Induction of indirect somatic embryogenesis in Borneo ironwood

Communications in Plant Sciences, vol 7, issues 1-2, p.15-19, 2017 (2017003)

DOI: http://dx.doi.org/10.26814/cps2017003

Authors: Gibson Entuni and Rebicca Edward

Abstract: Induction of indirect somatic embryogenesis in Eusideroxylon zwageri, an endangered and hardest timber tree species in Borneo tropical rainforest, was initiated from immature leaves. Embryogenic callus cultures were induced on Murashige and Skoog medium (MS) containing 3% sucrose, 0.24% Gelrite, and various concentrations and combinations of BAP, NAA and GA3 after 4 weeks of culture in darkness. A higher response (76%) of embryogenic callus was induced on MS medium with 1.0 mg L-1 BAP, 0.5 mg L-1 NAA and 1.0 mg L-1 GA3. Higher numbers of globular- (31), heart- (30), torpedo-(28), and cotyledon-stage (25) embryos per explant were obtained by culturing embryogenic callus on MS with 3% sucrose, 0.24% Gelrite without plant growth regulators after 8 weeks culture in darkness. These results on the induction of indirect somatic embryo in E. zwageri could be used for mass propagation and to select useful traits of this tree species at the cellular level. However, further work needs to be done on the conversion of the regenerated embryos.

Highlighted Conclusion
Murashige-Skoog medium is effective for the induction of indirect somatic embryogenesis in Eusideroxylon zwageri by using leaf as the main source of the explant.

Keywords: Eusideroxylon zwageri, Embryogenic callus, Timber, Somatic embryos.

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Anatomical variations in stomatal attributes of selected species of family Asteraceae

Communications in Plant Sciences, vol 7, issues 1-2, p.10-14, 2017 (2017002)

DOI: http://dx.doi.org/10.26814/cps2017002

Authors: Muhammad Asif Tahir, Rizwan Sarwar, Sajid Safeer, Imran Hamza, and Muhammad Faraz Khan

Abstract: In order to document stomatal characters which are significant in taxonomy, a detailed microscopic study on leaf epidermis of the selected taxa from Asteraceae was carried out. The plant species were Sonchus oleraceus, Bidens bipinnata, Centaurea iberica, Conyza bonariensis, Helianthus annuus, Lectuca serriola, Parthenium hysterophorus, Tagetes erecta, Cosmos sulphureus, Launaea procumbens, Zinnia elegan, Galinsoga parviflora and Conyza canadensis. All the species were amphistomatic and four types of stomata i.e., tetracytic, anomocytic, anisocytic and tricytic were recognized. Tetracytic stomatal type was dominant followed by anomocytic. Stomatal density was high on abaxial epidermis than adaxial epidermis except in Conyza bonariensis and Conyza canadensis. Highest stomatal density was in Tagetes erecta while lowest in Conyza canadensis. In lower epidermis stomatal index was higher in Sonchus oleraceus followed by Bidens bipinnata and Tagetes erecta while in upper epidermis highest index was shown by Cosmos sulphureus. Stomatal aperture and guard cell size and density were also significant features in these species.

Highlighted Conclusion
The study indicates the significance of micromorphological characters in identification of plant species.

Keywords: Stomata, Asteraceae, Epidermis, Taxa, Pakistan.

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A review on Tridax procumbens: a weed with immense phytochemical and pharmacological activities

Communications in Plant Sciences, vol 7, issues 1-2, p.1-9, 2017 (2017001)

DOI: http://dx.doi.org/10.26814/cps2017001

Authors: Funmilayo Adelowo and Oluwole Oladeji

Abstract: Medicinal plants have provided mankind a large variety of potent drugs to alleviate or eradicate infections and suffering from diseases in spite of advancement in synthetic drugs, some of the plant-derived drugs still retained their importance and relevance. The use of plant-based drugs all over world is increasing. Natural products derived from plants for the treatment of diseases have proved that nature stands a golden mark to show the relationship between the interrelationship between man and his environment. The researches and utilization of herbal medicine in the treatment of diseases increases every day. There have been records of advances made in the modern medicine there are still a large number of ailments or diseases for which suitable drugs are yet to be found. This has brought an urgent need to develop safer drugs for the treatment of inflammatory disorders, diabetes, liver diseases, and gastrointestinal disorder. Tridax procumbens is a highly valuable drug and well known for number of pharmacological activities like wound healing, antidiabetic activity, hypotensive effect, immune-modulating property amongst other. Therefore, the phytochemical and pharmacological activities should be investigated.

Highlighted Conclusions
1. Tridax procumbens is commonly regarded as weed in most part of Africa continents and are known for its pharmacological activity.
2. The application of the plant are immense such as pharmacological activities, hepatoprotective effect, immunomodulating property, wound healing activity, antidiabetic, antimicrobial, anti-inflammatory and antioxidant, bronchial catarrh, diarrheal and dysentery.
3. Analysis revealed the presence of the biomolecules such as anthraquinone, catachol, flavonoids, phenolic compounds, saponins, steroids, tannins and terpernoids.
4. Tridax procumbens also desire development of novel therapeutic agents from the various types of compounds with diverse pharmacologic properties isolated from it.
5. Therefore, more work (study) should be encourage in direction of more pharmacological activities of Tridax procumbens and to elucidate the structures of the phytochemicals responsible for the therapeutic properties of the plant.

Keywords: Herbal medicine, Medicinal plant, Natural product, Pharmacological, Phytochemical, Synthetic drugs.

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Genetic study for yield and quality traits in infra-specific mapping population of melon

Communications in Plant Sciences, vol 6, issues 3-4, p.61-65, 2016

Full title: Genetic study for yield and quality traits in infra-specific mapping population of melon

Authors: Smita Singh, Sudhakar Pandey, Richa Raghuwanshi, and Major Singh

Abstract: Heritability, inter-relationship and path coefficient studies were performed in an infra-specific cross between Snapmelon (Cucumis melo var. momordica) and muskmelon (Cucumis melo L.) to produce an array of 249 F3 families. A pattern of moderate to high, broad sense heritability was estimated for yield attributing fruit traits. Fruit weight exhibited highest heritability (90.3%) while ovary length and diameter showed lowest heritability. Positive and significant correlation of yield was found with fruit weight, number of fruits per plant, Fruit quality traits ascorbic acid content (Vitamin C) and fruit flesh pH showed positive correlation. Path analysis showed significant positive direct effect of number of fruits per plant and fruit weight on yield. Study on allelic interaction of fruit traits during early generation will allow selection of better inbred lines and variety development reducing the cost of advancement, space and time required for inbreeding large size population.

Keywords: Cucumis melo var. momordica, Ascorbic acid, Fruit weight, Path analysis, Correlation, Yield traits, Infra-specific cross, Population, TSS.

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Correlation analysis for yield and fiber quality traits in upland cotton

Communications in Plant Sciences, vol 6, issues 3-4, p.55-60, 2016

Full title: Correlation analysis for yield and fiber quality traits in upland cotton

Authors: Muhammad Yaqoob, Sajid Fiaz, and Babar Ijaz

Abstract: Yield and fiber quality are most important and complex trait as they depend on interaction of genetic architecture of plant and environment. To achieve this objective, two parents FH153, KZ191 and their F2 population were evaluated for the existence of inter-relationship of characters under study during 2014-2015, at University of Agriculture, Faisalabad. The experiment was carried out in a randomized complete block (RCB) design with three replications. Data were recorded for Plant height (cm), number of sympodial branches, number of monopodial branches, pedicel length (mm), number of bolls per plant, number of seed per boll, boll weight (g), ginning out turn (%), fiber fineness (μ/inch), staple length (mm), fiber strength (g/tex), seed cotton yield (g). The obtained data were analyzed through correlation analysis at 0.01 and 0.05 significance level. The traits under study showed considerable range of phenotypic variability. The parent FH153 had maximum mean value for all traits under observation expect fiber strength. The parent KZ191 showed maximum fiber strength (21.1 g/tex). The F2 population of parents (FH153×KZ191) had minimum results for all traits. The results also showed positive association of characters with each other except staple length showed negative association with monopodial branches per plant, fiber strength and seed cotton yield.

Keywords: Gossypium hirsutum, Correlation, Cotton, Fiber quality, Yield.

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Studies on weed diversity and its associated phytosociology under direct dry seeded rice systems

Communications in Plant Sciences, vol 6, issues 3-4, p.47-54, 2016

Full title: Studies on weed diversity and its associated phytosociology under direct dry seeded rice systems

Authors: Mantosh Kumar Sinha and Arnab Banerjee

Abstract: Chhattisgarh is commonly known as Bowl of rice where rice is grown as monocrop in the entire state whether soil is bhata, matasi, kanhar or black soil. Present study is based on the study of biodiversity of weeds  under Direct Dry Seeded Rice Systems in Koria District (C.G.) Study was conducted to assess the phytosociological studies of weed species in paddy  field at Baikunthpur, Koriya district, Chattisgarh. A total of 43 genera and 9 families of Dicotyledonae and 3 families of monocots and 1 Pteridophytes was also observed and 43 weed species were identified Ratio of Sedges: (Grasses:Broad-leaved weeds was calculated as 9:12:18 Ratio) under direct dry seeded rice systems. The results obtained indicated that Echinochloa colona, Cyperus iria and Cynodon dactylon were the most frequent in 2007; E. colona and C. iria were the most frequent in 2008 and 2009. The importance value index (IVI) revealed that the most important weeds within the community were Poaceae and Cyperaceae. Out of 12 angiosperm families the predominance was shown by monocot families Cyperaceae and Poaceae having and weed species, respectively. The pteridophyta family Marsileaceae was represented by 1 weed species.

Keywords: Weed, Paddy cropping system, Diversity, Koriya-Chattisgarh.

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Irrigation optimized of Cedrella fissilis seedlings

Communications in Plant Sciences, vol 6, issues 3-4, p.39-45, 2016

Full title: Irrigation optimized of Cedrella fissilis seedlings

Authors: Ângela Simone Freitag Lima, Toshio Nishijima, Weslley Wilker Corrêa Morais, and Antônio Natal Gonçalves

Abstract: The aim of this study was to evaluate the influence of irrigation intensity in development of Cedrella fissilis seedlings in the greenhouse. The statistical design was randomized blocks, arranged in a  bi-factorial design with split plot with three replications. As main plot was characterized for irrigation frequencies (treatments): T1 – one time irrigation daily (at 11h00min); T2 – two times irrigation daily (at 11h00min and 19h00min); T3 – three times irrigation daily (at 07 h00min, 11h00min, and 19h00min) and T4 – four times irrigation daily (at 07h00min, 11h00min, 15h00min, and 19h00min) and as a sub-portion eight times week assessment, and an eighth hardening phase. For the experiment was used a system of localized irrigation, consisting of: pump, irrigation nozzles, tubes and valves. The seedlings were grown in plastic containers (tubes) suspended for PVC trays. Data were collected weekly, obtaining the height and diameter of the seedlings, dry mass production and the number of sheets in each evaluation. After the analysis it was concluded that the frequency of the three irrigations per day showed the C. fissilis seedlings with better development and able to go to the field.

Keywords: Cedar, Water, Optimization, Biomass, Development.

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