scholarly journals First Report of Amphiplatyspora striata Kundu and Haldar, 1984 from Chondracisrosea (Order: Orthoptera) of Manipur, India.

The present communication deals with the complete life history of a Septate Gregarine (Protozoa:Sporozoa) found in Grasshoppers. Gregarines found in the mid-gut region of Grasshoppers were collected and examined for parasites. A species belonging to the genus Amphiplatysporawas obtained from Chondracisrosea. The morphology of the gregarine and its affinities with the other genera of the family Amphiplatysporidae are discussed. The morphological details of the different stages supported with photomicrographs are also provided.

1898 ◽  
Vol 63 (389-400) ◽  
pp. 56-61

The two most important deviations from the normal life-history of ferns, apogamy and apospory, are of interest in themselves, but acquire a more general importance from the possibility that their study may throw light on the nature of alternation of generations in archegoniate plants. They have been considered from this point of view Pringsheim, and by those who, following him, regard the two generations as homologous with one another in the sense that the sporophyte arose by the gradual modification of individuals originally resemblin the sexual plant. Celakovsky and Bower, on the other hand, maintaint the view tha t the sporophyte, as an interpolated stage in the life-history arising by elaboration of the zygote, a few thallophytes.


2007 ◽  
Vol 59 (3) ◽  
pp. 227-231 ◽  
Author(s):  
S. Zivkovic ◽  
M. Devic ◽  
B. Filipovic ◽  
Z. Giba ◽  
D. Grubisic

The influence of high NaCl concentrations on seed germination in both light and darkness was examined in the species Centaurium pulchellum, C. erythraea, C. littorale, C. spicatum, and C. tenuiflorum. Salt tolerance was found to depend on the life history of the seeds. To be specific, seeds of all five species failed to complete germination when exposed to continuous white light if kept all the time in the presence of 100-200 mM and greater NaCl concentrations. However, when after two weeks NaCl was rinsed from the seeds and the seeds were left in distilled water under white light for an additional two weeks, all species completed germination to a certain extent. The percent of germination not only depended on NaCl concentration in the prior medium, but was also species specific. Thus, seeds of C. pulchellum, C. erythraea, and C. littorale completed germination well almost irrespective of the salt concentration previously experienced. On the other hand, seeds of C. tenuiflorum completed germination poorly if NaCl concentrations in the prior media were greater than 200 mM. When seeds after washing were transferred to darkness for an additional 14 days, they failed to complete germination if previously imbibed on media containing NaCl concentrations greater than 400 mM. However, the seeds of all species, even if previously imbibed at 800 mM NaCl, could be induced to complete germination in darkness by 1 mM gibberellic acid. .


Author(s):  
Patricia M. Lambert

In 1989, a pioneer cemetery associated with the 19th-century Latter-Day Saints colony in San Bernardino, California, was discovered during the construction of a baseball field. Among the remains of 12 individuals recovered from the cemetery were those of a young man of about 22 years, whose burial treatment differed notably from the other intact interments at the site. Unlike these coffin burials, Burial 5 was found in a sprawling position, apparently tossed unceremoniously into the grave pit. Dental morphological traits identified the genetic affinities of this man as Native American, perhaps a member of the local Cahuilla or Serrano tribes, whereas the other individuals appeared to be of European ancestry, an interpretation consistent with records kept by community members. A possible identity for this individual came from a journal account describing the shooting of an “Indian” by the local sheriff, who was then brought to the fort, died, and was buried before his fellow tribesmen arrived to determine what had transpired and perhaps to claim his remains. This chapter explores the identity and life history of this young man in the context of the history of the valley and the pioneer community in which he met his death.


1902 ◽  
Vol 23 ◽  
pp. 319-358
Author(s):  
R. Stewart MacDougall

In the case of any harmful insect of economic importance, in order to war against it, or apply remedial measures at all intelligently, a knowledge of the life-history of the pest is necessary. This proposition will, I think, meet with such ready acceptance as to render proof unnecessary, but I might in illustration mention two cases which came under my own observation, where in the one case a knowledge of the round of life of the attacking insect saved a whole forest, and in the other proved of great importance.


2017 ◽  
Vol 11 (3) ◽  
Author(s):  
Mark Gamsa

AbstractThis article has two goals. It reflects on the recent developments and agenda of an approach to historical writing that is now becoming known by the name global microhistory, and it analyses the attention which this approach pays to individual lives. It also explores some of the challenges in writing the biography of a city alongside the life history of a person. The city is Harbin, a former Russian-managed railway hub in Manchuria, today a province capital in Northeast China. The person is Baron Roger Budberg (1867–1926), a physician of Baltic German origin who arrived in Harbin during the Russo-Japanese war and remained there until his death, leaving published works and unpublished correspondence in German and Russian. My forthcoming book about Budberg and Harbin challenges the distinction between writing “biography”, on the one hand, and “history”, on the other, while navigating between the “micro” and “macro” layers of historical enquiry.


2007 ◽  
Vol 92 (1) ◽  
pp. 77-85 ◽  
Author(s):  
DAVID REZNICK ◽  
TOMAS HRBEK ◽  
SUNNY CAURA ◽  
JAAP DE GREEF ◽  
DEREK ROFF

1975 ◽  
Vol 2 (3) ◽  
pp. 299-333 ◽  
Author(s):  
T. M. S. Priestly

Summary The first family-tree diagram in August Schleicher’s (1821–68) published work appeared in 1853, seven years after his first printed discussion of the family-tree concept. In 1853 there also appeared Čteni o srovnavaci mluvnici slovanské by the Czech scholar František Ladislav Čelakovský (1799–1852); this book also contained a family-tree diagram. Since Čelakovský and Schleicher were contemporaries in Prague for over two years, their interrelationship is of interest: was this rivalry of collaboration? At first sight, a coincidence seems improbable. In the available work on and by Schleicher, Čelakovský is never mentioned; in the writings on and by Čelakovský, Schleicher’s name is never linked to his. However, the two had very many common interests. Apart from being colleagues at Charles University, they shared the same friends and enemies, were both interested in music and botany, and so on. Moreover, both were working on Slavic Historical Linguistics during the period in question. On the other hand, their personalities were such that the possibility of a mutual antipathy must not be excluded. Given the background to Čelakovský’s life and work, including the legends of the common origin of the Slavs and the obviously close interrelationships of the Slavic languages; the burgeoning of interest in Slavic history and linguistics, and in Panslavicism; the popularity of genealogy; and the developments in classificatory techniques along natural scientific lines, it is argued that Čela-kovský’s depiction of a family-tree for the Slavic languages could be quite naturally expected from him at this point in time, without any influence from Schleicher. On the other hand, Schleicher’s first family-tree diagrams were the next logical step in his own development. Moreover, the actual form of the diagrams in question suggests that they may indeed have been developed independently. This puzzle in the history of linguistics remains unsolved: collaboration, rivalry, and coincidence are all possible.


1993 ◽  
Vol 6 (5) ◽  
pp. 377 ◽  
Author(s):  
AK Wells ◽  
RS Hill

It is known that epiphyllous microorganisms have the potential to provide important information about palaeoclimates and palaeohabitats. Previous studies have shown one of the major candidates, fungal 'germlings', to be possibly climatically sensitive. In this study we demonstrate that at least two organisms are present as germlings, one an epiphyte and the other a saprophyte. While there is some evidence to support the hypothesis that grades of germlings represent a sequence of developmental steps, most data either refute this hypothesis or neither refute nor support it. We show that grade 1 and 2 germlings are unlikely to be reliable for predictive purposes, since their presence is not consistent among host species, and they may represent saprophytes as well as epiphytes. The ecology and life history of germlings is complex, and more data are required on these factors before they can be used for predictive purposes.


Parasitology ◽  
1929 ◽  
Vol 21 (1-2) ◽  
pp. 220-225 ◽  
Author(s):  
Oliver R. McCoy

A cotylocercous cercaria occurring in the marine snail, Astraea americana, at Tortugas, Florida, was found to encyst in small fish as second intermediate hosts.Fish experimentally infested with the cysts were fed to the gray snapper, Neomaenis griseus, and adult worms developed in the intestine and pyloric caeca which were identified as Hamacreadium mutabile Linton, 1910, a member of the sub-family Allocreadiinae.A general relationship of the cotylocercous cercariae to the family Allocreadiidae is discussed.


Crustaceana ◽  
2016 ◽  
Vol 89 (5) ◽  
pp. 625-638 ◽  
Author(s):  
Tae Won Jung ◽  
Chang Ho Yi ◽  
Seong Myeong Yoon

Polycheria acercaudasp. nov., an amphipod symbiotic with sponges and ascidians in Korean waters, is established herein as a new species, along with a detailed description and illustrations. This new species is closely related to the following three known species of the genus from the Far East:Polycheria amakusaensisHirayama, 1984,P. japonicaBulycheva, 1952, andP. orientalisHirayama, 1984. However,Polycheria acercaudasp. nov. can be distinguished from the other congeners by the following combination of characteristics: (1) on antenna 2, the anterior margin of peduncular article 4 is pubescent; (2) on gnathopod 2, the palm is clearly distinct; (3) on uropod 3, the inner ramus is lined with plumose setae; and (4) on the telson, the apices are acute. This is the first report of the genusPolycheriaHaswell, 1879 belonging to the family Dexaminidae Leach, 1814 from Korean waters.


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