scholarly journals Discovery of Second Gene for Solid Dark Green versus Light Green Rind Pattern in Watermelon

2011 ◽  
Vol 102 (4) ◽  
pp. 489-493 ◽  
Author(s):  
R. Kumar ◽  
T. C. Wehner
Keyword(s):  
2013 ◽  
Vol 357-360 ◽  
pp. 463-466
Author(s):  
Yu Xi Song

In recent years, with the accelerating global resources depletion and increasing environment deterioration,sustainable development has become common understanding of best strategy in long-term development of human being. Green building has been the hottest keyword in building industry. This paper expounds the updated research of green building situation and trend,and investigate the green building development of DongYing City. The results indicated that green building development in China was still in the primary stage,the evaluation of green building would become national popular,the number of certified green building would increase year by year,and the development of green building in China was in the stage from light green to dark green.


Author(s):  
Terence Ball

All the major political philosophies have been born of crisis. Green political philosophy is no exception to this general rule. It has emerged from that interconnected series of crises that is often termed ‘the environmental crisis’. As we enter the second decade of the twenty-first century it seems quite clear that the level and degree of environmental degradation and destruction cannot be sustained over the longer term without dire consequences for human and other animal species, and the ecosystems on which all depend. A veritable explosion in the human population, the pollution of air and water, the melting of the polar ice caps and the resulting rise in sea levels, the overfishing of the oceans, the destruction of tropical and temperate rain forests, the extinction of entire species, the depletion of the ozone layer, the build-up of greenhouse gases, global warming, desertification, wind and water erosion of precious topsoil, the disappearance of valuable farmland and wilderness for ‘development’ – these and many other interrelated phenomena provide the backdrop and justification for the ‘greening’ of much of modern political thinking. The task of outlining and summarizing the state of green political philosophy is made more difficult because there is as yet no agreement among ‘green’ political thinkers. Indeed there is, at present, no definitive ‘green political philosophy’ as such. The environmental or green movement is diverse and disparate, and appears in different shades of green. These range from ‘light green’ conservationists to ‘dark green’ deep ecologists, from ecofeminists to social ecologists, from the militant ecoteurs of Earth First!, to the low-keyed gradualists of the Sierra Club and the Nature Conservancy. These groups differ not only over strategy and tactics, but also over fundamental philosophy as well. While there is no single, systematically articulated and agreed-upon green political philosophy, however, there are nonetheless recurring topics, themes, categories and concepts that are surely central to such a political philosophy. These include the idea that humans are part of nature and members of a larger and more inclusive ‘biotic community’ to which they have obligations or duties. This community includes both human and nonhuman animals, and the conditions conducive to their survival and flourishing. Such a community consists, moreover, not only of members who are alive but those who are as yet unborn. A green political philosophy values both biological and cultural diversity, and views sustainability as a standard by which to judge the justness of human actions and practices. Exactly how these themes might fit together to form some larger, systematic and coherent whole is still being worked out.


1994 ◽  
Vol 49 (10) ◽  
pp. 1410-1414 ◽  
Author(s):  
Rolf W. Saalfrank ◽  
Oliver Struck ◽  
Karl Peters ◽  
Hans Georg von Schnering

Abstract Depolymerisation of a copper(II)/pyrrolidine-based 2D -polymer 2 by 4,4′-bipyridyl [molar ratio: 2 (CuL2) : 1 (Bipy)] and recrystallisation of the reaction product leads to two visually distinguishable crystal charges, composed of dark green octahedra meso-4 and light green rod-shaped crystals racem-5. Separation of the conglomerate of the morphologically different crystals is accomplished by pick out. The structure of the dinuelear complex racem-5 has been established unambigously by X-ray structure analysis. EPR and susceptibility measurements of mixtures of complex meso-4 and racem-5 indicate that there is no interaction be­tween the two copper(II) centres.


The morphology of neurosecretory neurones, the Dark Green Cells, Yellow Cells, Yellow-green Cells, Light Green Cells, Caudodorsal Cells and Canopy Cells, in the central nervous system of the snail, Lymnaea stagnalis , was investigated by the intracellular injection of Procion Yellow and, for the Yellow Cells only, of horseradish peroxidase. The cerebral ganglia neurosecretory cells (Light Green Cells, Caudodorsal Cells and Canopy Cells) had discrete neurohaemal organs and their axons projected exclusively to nerves and connectives close to the central nervous system. The Light Green Cells had single, undividing axons, which projected exclusively to the ipsilateral median lip nerve. Hormone release is thought to take place principally from the lateral edges of axons, at various points along their lengths, within the median lip nerve. The Caudodorsal Cells projected to the cerebral commissure, where their axons often branched before terminating at the edge of the neuropil. The degree of axonal branching and the location of the Caudodorsal Cell terminals varied widely in different cells. Axon terminals penetrated the perineurium and travelled for several hundred micrometres within the connective tissue sheath of the cerebral commissure. Again, release of neurosecretory material at various points along their lengths seems likely. The Canopy Cells (a pair of individually identifiable giant cells) had a single axon, which projected to the contralateral cerebral ganglion via the cerebral commissure. Axons of left and right Canopy Cells were closely apposed in the cerebral commissure and this is the likely site of the electrotonic junction known to connect them. Neurohaemal organs for the Caudodorsal Cells are the ipsilateral lateral lobe, cerebral commissure and contralateral median lip nerve. Neurosecretory neurones whose cell bodies were located in the pleural, parietal and visceral ganglia (Yellow Cells, Yellow-green Cells and Dark Green Cells) had extensive non-localized neurohaemal areas in the connective tissue sheath surrounding the central ganglia as well as peripheral nerve projections. The Yellow Cells had one or two axons, which, in neurones located in the visceral and right parietal ganglia, projected extraganglionically to the central sheath or to the intestinal and internal right parietal nerves. These nerve projections are appropriate for the innervation of the kidney, the peripheral target organ of the Yellow Cells. Yellow Cells, located in the pleural ganglia, only had axonal projections to the central sheath. Yellow Cells and Yellow-green Cells had well developed dendritic branching terminating in the central neuropil. Yellow-green Cells project mainly to the anal and external right parietal nerves. Pleural ganglia Dark Green Cells had a few terminals located beneath the perineurium of the pleural ganglia but most of their axonal projections were to peripheral nerves. All Dark Green Cells projected to the ipsilateral pedal ganglion and then to pedal nerves. In addition, some pleural Dark Green Cells had further projections to the internal and external right parietal nerves and median lip nerve of the cerebral ganglion. The widespread distribution of Dark Green Cell axons was consistent with their supposed role in regulating ion and water transport across the skin of the foot and mantle. The electrotonic junctions known to connect Dark Green Cells whose cell bodies are close together on the pleural ganglion surface are located in the pleural ganglion, pleuro-pedal connective and pedal ganglion.


2016 ◽  
Vol 67 (15) ◽  
pp. 4697-4709 ◽  
Author(s):  
Rebecca A. Slattery ◽  
Aleel K. Grennan ◽  
Mayandi Sivaguru ◽  
Rosangela Sozzani ◽  
Donald R. Ort

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 618a-618
Author(s):  
Azza A. Tawfik ◽  
Paul E. Read ◽  
Susan L. Cuppett

Callus of Rosmarinus officinalis L. 'Lockwood de forest' was induced from stem segments (3 mm long) using different concentrations of thidiazuron (TDZ). The original stem segments used as explants were found to have a higher level of linalool than was found for leaf segments. Linalool is one of the monoterpenes identified in rosemary plants and it has a pleasant aroma. TDZ has a significant effect on callus formation and callus texture. The callus formed was light green to yellow and/or had some meristimatic dark green cells. TDZ had a significant linear effect on the callus fresh weight. The meristimatic green cells formed on all calli except those proliferated on the lowest concentration of TDZ (0.5 mg/l). No callus was induced from stem segments cultured on TDZ-free medium. The fresh calli from other treatments were soaked in hexane as a solvent for monoterpene analysis using GC/MS. No monoterpenes could be detected in the callus induced on the medium containing the lowest concentration of TDZ. Comparing to the stem segments taken from the parent plants only 4 of 10 monoterpenes identified were found in the callus: α-pinene, β-pinene, 1,8-cineole, and camphor.


2019 ◽  
Vol 68 (1-2) ◽  
pp. 29-36
Author(s):  
S. Robbert Gradstein ◽  
Anna Luiza Ilkiu-Borges

Abstract We describe the new liverwort species Lejeunea ryszardii from montane rainforest in the Central Cordillera of Colombia (Dept. Quindío) and Rectolejeunea halinae from submontane rainforest in the Western Cordillera (Dept. Risaralda). Both species stand out by copious vegetative reproduction via caducous leaves. Lejeunea ryszardii resembles the Caribbean L. paucidentata in the leaf lobes with toothed margins and a narrow base but strikingly differs from the latter species in: 1) leaf margins with mamillose cells, which are sometimes crowned by a small papilla, and with scattered rhizoids with or without a tooth-like base; 2) lobules with narrowly elongate, curved, sharp tooth; 3) stem epidermis brownish and somewhat thick-walled; 4) copious production of caducous leaf lobes. Moreover, L. ryszardii is dark green to brown in color and probably dioicous while L. paucidentata is light green and autoicous. Rectolejeunea halinae resembles the neotropical R. flagelliformis in having ciliate caducous leaves but clearly differs from the latter in the pointed leaf tips, the presence of ocelli in underleaves, and the flagelliform shoots with flat, entire-margined underleaves. The discovery of these new species adds two further endemic taxa to the rich bryophyte flora of the Colombian Andes.


2019 ◽  
Vol 41 (4) ◽  
pp. 498-505
Author(s):  
Brenna Rafaella Veríssimo dos Santos ◽  
Clarisse Pereira Benedito ◽  
Salvador Barros Torres ◽  
Caio César Pereira Leal ◽  
Tatianne Raianne Costa Alves

Abstract: The purpose of this research was to verify the efficiency of physical and biochemical indices in determining the physiological maturity of Tabebuia aurea seeds, as well as to evaluate the post-harvest storage of fruits with different maturation stages on germination and vigor. For this, 200 fruits were classified as dark green (stage I), light green (stage II), and light brown (stage III) epicarp. Freshly harvested fruits were evaluated for length, width, and weight and their seeds for length, width, thickness, thousand-seed weight, water content, electrical conductivity, and chemical composition. Subsequently, a factorial consisting of three maturation stages and four storage periods of fruits (0, 5, 10 and 15 days) were used, and water content, germination, germination speed index, root length, shoot length, and seedling dry matter were evaluated. Physical and biochemical indices can be used as maturation indicators in T. aurea seeds, except fruit length, seed thickness, electrical conductivity, and protein content. The maximum germination and vigor of T. aurea seeds were obtained in fruits at stages I (dark green) or II (light green) associated with post-harvest storage of fifteen days.


Zootaxa ◽  
2020 ◽  
Vol 4768 (1) ◽  
pp. 112-128
Author(s):  
ZENING CHEN ◽  
JIANPING YU ◽  
GERNOT VOGEL ◽  
SHENGCHAO SHI ◽  
ZHAOBIN SONG ◽  
...  

The white-lipped tree viper, Trimeresurus albolabris Gray, is one of the most common species of the genus Trimeresurus with a wide distribution from India eastwards to China and southwards to Indonesia. However, this species was previously split into five geographical clades with significant genetic divergence. Recent surveys in Yingjiang County, Yunnan Province, China resulted in the discovery of one cryptic species of the subgenus Trimeresurus. Combining molecular, morphological and ecological data, we describe it as a new species Trimeresurus caudornatus sp. nov. The new species differs from other Trimeresurus species by a combination of the following characteristics: (1) Head and body generally dark green, postocular stripes absent in both genders, upper labials light green; (2) ventrolateral stripe faint green yellow, present on the first row of DSR in both genders; (3) iris golden yellow in both genders; (4) dorsal tail mostly dark red, lateral and ventral green; an orange red stripe along the ventral part of the tail; (5) DSR 21/22 –21–15, VEN 161–163, SC 52–72; (6) first upper labial partially fused to the nasal. The new species was shown to be a strongly supported monophyletic group (BPP 100%) and sister to T. septentrionalis. The uncorrected pairwise distances of mitochondrial gene Cytb between the new species and other species of the subgenus Trimeresurus, ranging from 0.059 (T. septentrionalis) to 0.134 (T. kanburiensis). 


1988 ◽  
Vol 66 (11) ◽  
pp. 2331-2337 ◽  
Author(s):  
Jennifer M. Shay ◽  
A. J. Macaulay ◽  
K. A. Frego

Sixty stands of Scirpus acutus Muhl. and S. validus Vahl from five areas in southern Manitoba were examined to determine (i) whether the two were morphologically distinguishable within the region studied and, if so, (ii) which morphological characters were the most useful to separate them. Thirteen characters were measured on pressed and living specimens. From these, six bimodally distributed characters were objectively selected to calculate a biometric index for each specimen. Mean indices for 56 stands were separable into two groups, indicating that they contained pure populations of one taxon. Three stands had mixed populations, and one contained morphologically intermediate individuals. The two taxa can be consistently identified using a combination of six characters. Scirpus acutus has an inflorescence < 47 mm long, less than seven primary rays, no secondary rays, clusters of more than five spikelets, aerenchymal lacunae < 0.9 mm in diameter, and dark green culms in fresh specimens. In contrast, S. validus has inflorescences > 80 mm long, more than 13 primary rays, secondary, tertiary, and occasionally quaternary rays present, spikelets generally in clusters of one to three, aerenchymal lacunae > 1.5 mm in diameter, and light green culms in fresh specimens. Data from Manitoba populations support their status as separate species.


Sign in / Sign up

Export Citation Format

Share Document