Facts about Plant
A form of budding called suckering is the reproduction or regeneration of a plant by shoots that arise from an existing root system.
A haploid plant of the gametophyte generation produces gametes by mitosis.
Some algae are also nonvascular, but these are no longer grouped in the plant kingdom.
The Division Lycopodiophyta (sometimes called Lycophyta), comprising the clubmosses, spikemosses, and quillworts, is the oldest extant (living) vascular plant division and includes some of the most "primitive" extant species.
The mostly ruined Black Pyramid dating from the reign of Amenemhat III, once had a polished granite pyramidion or capstone, now on display in the main hall of the Egyptian Museum in Cairo.
Epiphytes may indirectly harm their host plant by intercepting mineral nutrients and light that the host would otherwise receive.
A plant that persists in a location through vegetative reproduction of individuals over a long period of time constitutes a clonal colony.
The genus Ophioglossum has the highest chromosome counts of any known plant.
Ferns can be either terrestrial species growing in the soil or they can be epiphytes growing on another plant.
In Carolus Linnaeus' system, these became the Kingdoms Vegetabilia (later Plantae) and Animalia.
Most plant species that survive and significantly expand by vegetative reproduction would be perennial almost by definition, since specialized organs of vegetative reproduction, like seeds of annuals, serve to survive seasonally harsh conditions.
Water transport happens in either xylem or phloem: the xylem carries water and inorganic solutes upward toward the leaves from the roots, while phloem carries organic solutes throughout the plant.
Two gametes (originating from different organisms of the same species or from the same organism) combine to produce a zygote, which develops into a diploid plant of the sporophyte generation.
See articles on life cycle, gymnosperm, angiosperm, bryophyte, and fern for more complete discussion of plant reproduction.
Beyond these initial prosecutions, the ecclesia attacked Pericles himself by asking him to justify his ostensible profligacy with, and maladministration of, public money.
The pollen grain itself is the male gametophyte and the plant's embryo sac within the ovule is the female gametophyte.
The mostly ruined Black Pyramid dating from the reign of Amenemhat III, once had a polished granite pyramidion or capstone, now on display in the main hall of the Egyptian Museum in Cairo.
The Kingdom Plantae is at times taken to mean this monophyletic grouping.
Unlike the other vascular plants, the flowering plants and conifers, where the adult plant grows immediately from the seed, ferns reproduce from spores and an intermediate plant stage called a gametophyte.
Like many other plants, ferns can reproduce by sexual or asexual methods. But it is their unusual bi-generational life cycle that is characteristic of ferns. Depending on fern type, they can reproduce by spores, rhizomes, offsets or stems.
cytoplasm. The jellylike material that makes up much of a cell inside the cell membrane, and, in eukaryotic cells, surrounds the nucleus. The organelles of eukaryotic cells, such as mitochondria, the endoplasmic reticulum, and (in green plants) chloroplasts, are contained in the cytoplasm.
A tough plant "pioneer" that can grow in Martian soil. Like customizing a car, NASA-funded scientists are designing plants that can survive the harsh conditions on Mars. These plants could provide oxygen, fresh food, and even medicine to astronauts while living off their waste.May 16, 2005
Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins.
Parts of a plant. ... The roots absorb water and minerals from the soil and anchor the plant in the ground. The stem supports the plant above ground, and carries the water and minerals to the leaves. The leaves collect energy from the Sun and make food for the plant, using an amazing process called photosynthesis.
Definition of plant. 1 a : a young tree, vine, shrub, or herb planted or suitable for planting. b : any of a kingdom (Plantae) of multicellular eukaryotic mostly photosynthetic organisms typically lacking locomotive movement or obvious nervous or sensory organs and possessing cellulose cell walls.