Write the main characteristics of Kingdom Plantae.

Explanation

Kingdom plantae includes all eukaryotic chlorophyll containing organisms commonly called plants.
A few members are partially heterotrophic such as the insectivorous plants or parasites.
Bladderwort and Venus fly trap are examples of insectivorous plants and cuscuta is a parasite.
The plant cells have an eukaryotic structure with prominent chloroplasts and cell wall mainly made of cellulose.
Plantae includes algae, bryophytes, pteridophytes, gymnosperms and angiosperms.
Alternation of generation : Life cycle of plants has two distinct phases - the diploid sporophytic and the haploid gametophytic that alternate with each other.
The lengths of the haploid and diploid phase and whether these phases are free living or dependent on others, vary among different groups in plants.
This phenomenon is called alternation of generation.
In general, viruses the infect plants have single stranded RNA and viruses that infect animals have either single or double stranded RNA or double stranded DNA.
Bacterial viruses or bacteriophages (viruses that infect the bacteria) are usually double stranded DNA viruses.
The protein coat called capsid made of small subunits called capsomeres, protects the nucleic acid.
These capsomeres are arranged in helical or polyhedral geometric form.
Diseases caused by virus :
Viruses cause diseases like mumps, small pox, herpes and influenza.
AIDS in humans is also caused by a virus.
In plants the symptoms can be mosaic formation, leaf rolling and curling, yellowing and vein clearing, dwarfing and stunted growth.