Zizania latifolia is an aquatic plant, which grows in swamps or lakes. In the water, the stem of Zizania latifolia is parasitic with a fungus called Zizania latifolia. Under the stimulation of Zizania latifolia, the stem swells to produce Zizania latifolia, and when the weather is hot, there will be black centers or black spots, all of which are residual Zizania latifolia black spikes.
The black spot in Zizania latifolia is actually the spore of Zizania latifolia, which was originally a fungus living in the soil. When the underground roots of Zizania latifolia begin to sprout new buds, this Zizania latifolia will take the opportunity to drill into Zizania latifolia and continuously secrete indoleacetic acid.
Under the constant stimulation of indoleacetic acid, the stem of Zizania latifolia will continue to grow and swell, and finally grow into a plump, white and smooth Zizania latifolia. When the water bamboo becomes hard or the weather is hot, the smut fungus of water bamboo also begins to form black spores. Some of these spores fell into the soil, and some remained in the water bamboo. These spores left in the water bamboo are the black spots we saw after cutting the water bamboo. ?
Extended data:
morphological character
Yi is also known as Shuowen, Cao and (Tao Hongjing). Perennial herbs. There are rhizomes and thick fibrous roots; The culm is erect, with a height of 90 ~ 180 cm and adventitious roots on the basal nodes. Leaf sheaths are thick and longer than internodes, usually with transverse veins at the base; Ligule membranous, slightly triangular, long 15 mm.
The leaves are flat, linear-lanceolate, 30 ~ 100 cm long and 10 ~ 30 mm wide, with smooth bottom and rough top. Panicle is 30 ~ 60 cm long, and most branches are clustered, rising or developing at the base.
The tassel is usually born in the lower part of the inflorescence, with a short stalk, often purple, long 10 ~ 15 mm, the lemma with 5 veins, the apex acuminate or short awn, the palea with 3 veins, 6 stamens and 6 ~ 9 mm long anthers; Female spikelets are mostly located in the upper part of inflorescence, with a length of 15 ~ 25mm, a lemma with five thick veins and a awn length of 15 ~ 30mm, and a palea with three veins. Dianthus is cylindrical, about10mm long. Flowers bloom in autumn.
References:
Baidu encyclopedia-Zizania latifolia