It is the fourth or female whorl, arid its functional units are called carpels (= megasporophylls). A typical carel consists of ovary, style and stigma. Ovary is the swollen basal part of the carpel that contains one or more ovules. Each ovule connected to the ovary wall through a spec...
FlowerangiospermVarifructus lingyuanensisChinaLiaoningYIXIAN FORMATIONLIAONING PROVINCEARCHAEFRUCTUSPLECOPTERAINSECTAThe Yixian Formation (Barremian to Aptian, Lower Cretaceous) of China has yielded many fossils of early angiosperms, but not all of these angiosperms are completely understood. The seeds of ...
Despite the crucial importance of flower-visiting insects in modern ecosystems, there is little fossil evidence on the origins of angiosperm pollination. Most reports of pollination in the Mesozoic fossil record have been based on the co-occurrence of the purported pollinators with pollen grains and...
In Search of the First Flower: A Jurassic Angiosperm, Archaefructus, from Northeast China. (cover story) Reports on the first plausible fossil evidence of a Jurassic angiosperm, or Archaefructus. Implications of the finding for the origin of flowering plants;... Sun,Ge,Dilcher,... - 《...
The Apiaceae family belongs to the euasterid II clade, which includes important crops such as lettuce and sunflower8. Genome sequences of euasterid I species have been reported, but only two genomes9,10 have been published among the other euasterid II species. Here we report a high-...
3), which is typical for TLP from other plants, such as Vitis vinifera thaumatin-like proteins or the Ban-TLP from banana [14]. Proteins from this superfamily slightly vary in structure between domains, clefts between domains can be basic, neutral or acidic, but they can be featured as ...
Iorizzo M, Senalik D, Szklarczyk M, Grzebelus D, Spooner D, Simon P: De novo assembly of the carrot mitochondrial genome using next generation sequencing of whole genomic DNA provides first evidence of DNA transfer into an angiosperm plastid genome. BMC Plant Biol. 2012, 12: 61-10.1186...
Conidia generate typical structures known as appressoria and acervuli, which aid fungal penetration into host plant cells [77]. Control measures: Chemical spraying of either 2 g/L cholothalonil at 10–15 day intervals with 2 g/L Mancozebat at 10-day intervals, or carbendazim 1 g/L at ...
alpine; flowering phenology; flower longevity; growing season; Oxalis squamata; Relative Pollination Rate index; TBASE; thermal growth threshold; South American Andes1. Introduction Alpine plants face rapid elevational declines in temperature [1] and spatial variation in the depth and duration of snow ...
A typical sugarcane variety development program (Fig. 5) begins by making a large number of crosses among selected parental genotypes. The resulting seeds give rise to a large number of progeny (seedlings), which are needed to increase the chance of obtaining improved cultivars from superior genet...