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It is the usual method of reproduction in the bryophytes. The male and female sex organs in some species of liverworts are borne on different plants. The examples of this kind areMarchantia, Pelliaetc. Such species are called dioecious. There are others in which both kind of sex organs are...
Preliminary protonemal stage: Moss plants arise as lateral buds from the extensively branched primary protonema. The protonema originating from single spore may possess several buds that later develops into leafy shoots. The connecting portions of protonema decays which results in the separation of leafy...
Vol. 172: 215-223, 1998 l MARINE ECOLOGY PROGRESS SERIES Mar Ecol Prog Ser Published October 22 Reproduction of Littorina brevicula in Korean waters Min Ho Son, Sung Yun Hong* Department of Marine Biology, Pukyoung National University, Pusan 608-737, Korea ABSTRACT: Littorina brevicula (...
Animals exhibit an extraordinary diversity of life history strategies. These realized combinations of survival, development and reproduction are predicted to be constrained by physiological limitations and by trade-offs in resource allocation. However, o
FishesOregonLengthSizes(Dimensions)Statistical dataTables(Data)ReprintsNo abstract available.Stein, D. LOregon State Univ.Stein, DL. (1980) Aspects of Reproduction of Liparid Fishes from the Continental Slope and Abyssal Plain off 709 Oregon, with Notes on Growth. Copeia 4:687-699...
Masting, the synchronous and highly variable production of seeds by a population of plants, may periodically synchronize over large portions of a species distribution range1,2,3, with major cascading effects on ecosystems functioning4. Large-scale masting events rely on the spatial synchronization (...
Correct anther development is essential for male fertility and subsequently agricultural yield. Defects in anther development range from the early stage of stamen formation until the late stage of tapetum degeneration. In particular, the specification of the four distinct somatic layers and the inner sp...
Sexual reproduction requires the production of haploid gametes that fuse to form a diploid zygote. Reproduction in flowering plants has evolved to use pollen tubes to deliver sperm cells to female gametes (Johnson et al.2019). Shortly after pollination, the pollen grain is hydrated. The pollen tu...
female plants produce relatively large amounts of auxin and transducers, which are needed to enhance the production of female flowers. The cytokinin oxidaseCKX7gene (Cucsa.299790) is also highly expressed in females. How these hormones influence sex determination in plants has not been determined,...