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1223. Settling moths as potential pollinators of Uncaria rhynchophylla (Rubiaceae)

Creator:
Funamoto, Daichi and Sugiura, Shinji
Format:
print, počítač, and online zdroj
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, motýli, píďalkovití, můrovití, butterflies, Geometridae, Noctuidae, Lepidoptera, Crambidae, Erebidae, floral visitors, generalized pollination system, nocturnal moths, 2, and 59
Language:
English
Description:
Nocturnal pollinators such as moths have received less attention than diurnal insects. To elucidate whether nocturnal moths are important pollinators, we observed both the diurnal and nocturnal visitors to the flowers of Uncaria rhynchophylla (Rubiaceae) in a warm-temperate forest in central Japan. The diurnal visitors included various taxonomic groups (e.g., bees, hoverflies and butterflies). The nocturnal visitors were exclusively moths (Geometridae, Erebidae, Noctuidae and Crambidae). Pollen grains of U. rhynchophylla were attached to both diurnal and nocturnal visitors. Although diurnal flower visitors carried pollen grains of other plant species, nocturnal moths did not carry heterospecific pollen grains. These results suggest that nocturnal moths, as well as diurnal insects, are important pollinators of U. rhynchophylla., Daichi Funamoto, Shinji Sugiura., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

1224. Seven new species of Resartor Gustafsson et Bush, 2017 (Phthiraptera: Ischnocera: Philopteridae) from Asian "babblers" (Passeriformes: Leiothrichidae, Paradoxornithidae)

Creator:
Gustafsson, Daniel Roland, Chu, Xingzhi, Sarah Elizabeth Bush, and Zou, Fasheng
Format:
print, počítač, and online zdroj
Type:
model:article and TEXT
Subject:
morfologie (biologie), morphology (biology), Čína, Malajsie, China, Malaysia, Brueelia-complex, species description, 2, and 59
Language:
English
Description:
Seven new species of chewing lice in the genus Resartor Gustafsson et Bush, 2017 are described and illustrated. They are: Resartor albofulvus sp. n. ex Heterophasia desgodinsi desgodinsi (Oustalet); Resartor apimimus sp. n. ex Heterophasia picaoides wrayi (Ogilvie-Grant); Resartor aterrimus sp. n. ex Minla ignotincta mariae La Touche; Resartor extraneus sp. n. ex Lioparus chrysotis swinhoii (Verreaux); Resartor guangxiensis sp. n. ex Trochalopteron milnei sinianum Stresemann; Resartor longisuturalis sp. n. ex Actinodura cyanouroptera wingatei (Ogilvie-Grant); Resartor seminudus sp. n. ex Leiothrix argentauris tahanensis (Yen). All species differ in the shape of the head, shape of the male genitalia and abdominal chaetotaxy. A checklist and a key to the species of Resartor are provided., Daniel Roland Gustafsson, Xingzhi Chu, Sarah Elizabeth Bush, Fasheng Zou., and Obsahuje bibliografii
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

1225. Severe water deficit-induced ethylene production decreases photosynthesis and photochemical efficiency in flag leaves of wheat

Creator:
Yang, W., Yin, Y., Jiang, W., Peng, D., Yang, D., Cui, Y., and Wang, Z.
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
fotosyntéza, ethylen, pšenice, photosynthesis, ethylene, wheat, 1-aminocyclopropane-1-carboxylic acid, chlorophyll fluorescence, net photosynthetic rate, severe water deficit, Triticum aestivum L., 2, and 581
Language:
Multiple languages
Description:
Wheat (Triticum aestivum L.) cv. Jimai22 was used to evaluate the effect of ethylene evolution rate (EER) and 1-aminocyclopropane-1-carboxylic acid (ACC) and their relations with photosynthesis and photochemical efficiency in plants well-watered (WW) and under a severe water deficit (SWD). SWD caused a noticeable reduction in the grain mass. The marked increases in both EER and the ACC concentration were observed under SWD; it was reversed effectively by exogenous spermidine (Spd) or amino-ethoxyvinylglycine (AVG). Thermal images indicated that SWD increased obviously the temperature of flag leaves, mainly due to the decrease in transpiration rate under SWD. Exogenous Spd or AVG decreased to some extent the temperature of the flag leaves. The strong decline in photosynthetic rate (PN) and stomatal conductance as well as the photodamage of PSII were also observed under SWD after 14 and 21 days after anthesis (DAA). Intercellular CO2 concentration was reduced at 7 DAA, but slightly increased at 14 and 21 DAA under SWD, indicating that the decreased PN at 7 DAA might result from stomatal limitations, while the decline after 14 and 21 DAA might be attributed to nonstomatal limitations. Correlation analysis suggested that EER and ACC showed negative relations to photosynthesis and photochemical efficiency. Data obtained suggested that the effects of SWD were mediated predominantly by the increase in EER and ACC concentration, which greatly decreased the leaf photosynthesis and photochemical efficiency, and, therefore, reduced the grain mass. Application of Spd or AVG reduced the EER and ACC, and thus positively influenced photosynthesis and photochemical efficiency under SWD., W. Yang, Y. Yin, W. Jiang, D. Peng, D. Yang, Y. Cui, Z. Wang., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

1226. Sexual dimorphism in the Drosophila melanogaster (Diptera: Drosophilidae) metabolome increases throughout development

Creator:
Ingleby, Fiona C. and Morrow, Edward H.
Format:
print, počítač, and online zdroj
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, dvoukřídlí, octomilkovití, ontogeneze, sexuální dimorfismus, Diptera, Drosophilidae, ontogeny, sexual dimorphism, Drosophila melanogaster, metabolome, transcriptome, 2, and 59
Language:
English
Description:
The expression of sexually dimorphic phenotypes from a shared genome between males and females is a longstanding puzzle in evolutionary biology. Increasingly, research has made use of transcriptomic technology to examine the molecular basis of sexual dimorphism through gene expression studies, but even this level of detail misses the metabolic processes that ultimately link gene expression with the whole organism phenotype. We use metabolic profiling in Drosophila melanogaster to complete this missing step, with a view to examining variation in male and female metabolic profiles, or metabolomes, throughout development. We show that the metabolome varies considerably throughout larval, pupal and adult stages. We also find significant sexual dimorphism in the metabolome, although only in pupae and adults, and the extent of dimorphism increases throughout development. We compare this to transcriptomic data from the same population and find that the general pattern of increasing sex differences throughout development is mirrored in RNA expression. We discuss our results in terms of the usefulness of metabolic profiling in linking genotype and phenotype to more fully understand the basis of sexually dimorphic phenotypes., Fiona C. Ingleby, Edward H. Morrow., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

1227. Seznam rostlin květeny české

Creator:
Opiz, Filip Maxmilián
Publisher:
Nákladem Českého museum and V kommissí u Fr. Řivnáče
Format:
print, text, regular print, and 216 s. ; 19 cm
Type:
model:monograph and TEXT
Subject:
581.9, (437.3), (048.8), 581, 2, flóra, flóra--Česko, and Obecná botanika
Language:
Czech
Description:
sepsal Filip Max. Opiz, Latinské názvosloví, and Converted from MODS 3.5 to DC version 1.8 (EE patch 2015/06/25)
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

1228. Sezonnost tropického deštného lesa z ptačí perspektivy

Creator:
Zenklová, Tereza
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Biologické vědy, tropické deštné lesy, ptáci, tropical rain forests, birds, 2, and 57/59
Language:
Czech
Description:
V naší studii se zabýváme zpěvní a hnízdní aktivitou ptáků v tropickém deštném lese Kamerunské hory v západní Africe. Ukázali jsme, že toto na první pohled stálé prostředí vykazuje výraznou sezonalitu v množství srážek ovlivňujících dostupnost potravy. Důsledkem je variabilní sezónní aktivita ptačího společenstva, zejména různých potravních guild. Sezonalita prostředí i ptačího společenstva se mění také s nadmořskou výškou., The aim of our study, conducted in the Re­public of Cameroon (Africa), was to examine the singing and breeding activity of birds in a tropical rain forest. We have shown that this otherwise stable environment exhibits a distinct seasonality in rainfall, resulting in seasonal activity of bird communities, especially of various feeding guilds. Seasonality of environment and breeding of bird communities also changed with the altitude (tested on the Mount Cameroon - Mongo ma Ndemi)., Tereza Zenklová a kolektiv autorů., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

1229. Short-term effects of surface dust: alleviating photoinhibition of cotton under high irradiance in the Tarim Basin

Creator:
Li, L. and Mu, G.
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
chlorofyl, chlorophyll, chlorophyll a fluorescence, dust retention, electron transport, photosynthetic rate, 2, and 581
Language:
Multiple languages
Description:
Dust deposition on leaf surfaces can impact the growth and physiological traits of plants. We carried out a field experiment to investigate short-term effects of light surface dust on photosynthesis of cotton in the Tarim Basin using chlorophyll fluorescence and gas-exchange techniques. JIP-test analysis of OJIP curves showed that the total performance index for leaves without dust decreased by 32% at noon compared to the morning value. High irradiance at noon reduced actual quantum yield of PSII and increased nonphotochemical quenching for leaves without dust, showing photoinhibition. It suggested that light surface dust alleviated photoinhibition of cotton to high irradiance on a short-term basis. For the leaves without dust, high irradiance induced photoinhibition not only with respect to the photochemistry reactions but the biochemical pathways of CO2 fixation. Mechanisms such as thermal dissipation and enhanced electron flux to PSI protected the photosynthetic apparatus under high irradiance., L. Li, G. Mu., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

1230. Šídlatky na dně šumavských jezer

Creator:
Martina Čtvrtlíková
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Biologické vědy, rostliny, jezera, plants, lakes, Šumava (pohoří), Šumava Mountains, 2, and 57/59
Language:
Czech
Description:
The Lake Quillwort (Isoëtes lacustris) and Spring Quillwort (I. echinospora) are submerged Lycopods and critically endangered species of Czech flora, each living in a sole lake in the Šumava Mountains (Bohemian Forest). Our 15-year scientific research has been focused on the resistance of these living fossils to the strong acidification of the lakes. Both populations were unable to reproduce for decades and are responding in a quite specific way to the current recovery of the lakes, although this does not quarantee the successful restoration of the quillwort stands. and Martina Čtvrtlíková.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

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