Explanation of relict plant terms, explanation of original plant plant terms

Relict plants, also known as living fossil plants, have a long origin, with a wide distribution in the Tertiary or earlier of the Cenozoic Era. Most of them have become extinct due to geological and climatic changes, and only exist in a small range. The shape of these plants is essentially the same as that found in fossils, while also retaining the original shape of their ancient ancestors.

Most of the relatives of relict plants are extinct, so they are also relatively isolated and slow to evolve. [1]

Ginkgo, water pine, and dove tree are all relict plants endemic to China.

The original plant nouns are explained as follows:

Proto-plant plant: The structure of the plant body is relatively simple, which is a single-celled or multicellular filament or phylloid, without the differentiation of roots, stems and leaves, which is called a proto-plant. Lower plants are also called proto-plant plants.

Protofilaments are a structure of tangerine in the life history of bryophytes. It is made up of green clumps of filamentous filaments or flakes formed after germination. Pseudoroots and buds are produced on the protofilament, and the bud body develops into a green plant body with pseudoroots and stems and leaves (or sheets) - gametophytes.

One of the major categories of plants, is the stem and leaf body of the plant corresponding words, because of the difference in the morphological structure of the living individual as the most fundamental point of distinction, so with the phyllodes of the search base to the group. It was founded by the first.

Fungi and algae fall into this category, and it is consistent that the sporangia and gametocysts that form germ cells are unicellular (some brown algae are polycellular) and do not have infertility.

However, judging from the structure of flagella and the formation of chloroplasts, they are large clusters of the opposite sex, not natural groups, and it is more appropriate to regard them as a stage of evolution.

Morphological characteristics:

Proto-implants are filamentous or flaky, ranging in size from small ones with only a few cells to large ones with complex morphology like trees. The cells that can carry out photosynthesis and support are in a linear structure, but the original plant has no differentiation of roots, stems, and leaves, and no conduction tissue. Most of the original plants are now classified as complex protists.

Explanation of calyx.

calyx]

The outer layer of the mosaic leaves, which make up the outer part of the flower, and is composed of sepals that are separated or commisfused, are usually green and leaf-like, but often have a detailed explanation of the color like the corolla also known as "flower shooter". 1.One of the components of the flower, which is composed of several sepals, is encased in the outer petals, and holds the corolla when the flower opens.

Abbreviated as calyx. It is also sometimes referred to as a flower. Southern Dynasty Song Bao Zhao "Picking Mulberry" poem:

Milk swallows chase grass insects, and nest bees pick up flowers. Southern Dynasty Liang Liu Xian's "Wenxin Carving Dragon, Sentiment": The husband is watery and devoid of water, the wood is solid and the calyx is vibrating, and the text is also of quality.

Ming Xie Yan "Four Joys: Flower Pavilion Couple": The calyx shakes gently, and a flower song is boring. "The Travels of the Old Remnant" Chapter 11:

In the past ten years, the nail has gradually dissolved, and the armor has been completed. Yin is a wood, for the calyx elephant. ” 2).

Poetry, Xiaoya, Chang Di: Chang Di's Hua Zen Yin, Hu Bu Weiwei. Anyone today is like a brother.

Hua, calyx and flower have the same branch, and have the effect of protecting the petals, so Chang He Xing later used "calyx" as a metaphor for the harmony and friendship between brothers or brothers. Tang Yang Jiong, "Tang Right General Wei Zhe Shinto Monument": The door is passed on ten thousand stones, the court is lined with double beads, the calyx is glorious, and the Zhilan is beautiful.

See " Calyx House ".

Word decomposition Explanation of flowers Flower ā The reproductive organ of a plant, typically composed of "receptacle", "calyx", "corolla", "pistil group" and "stamens group", comes in various shapes and colors, generally looks beautiful, some have fragrance, withered and bears fruit. Plants for ornamentation: Flowers and trees.

Flowers. Gardener. Flower things (You Chun look at the explanation of the calyx Calyx è A circle of leaf-like green patches in the lower part of the petals:

Calyx. Sepal. Calyx tarsus (a calyx and ovary; b Brother Yu).

Calyx green (another name for jasmine). Radical : 艹.

The answer to this question about the explanation of botanical terms is as follows:

Botany is a comprehensive science that studies plant morphological anatomy, growth and development, physiology and ecology, phylogenetic evolution, classification, and its relationship with humans, and is a sub-discipline of biology.

1. Mycorrhizal biology and biotechnology: Combining theory and practice in this direction, we will actively carry out interdisciplinary research, focusing on the theory and application of the symbiotic relationship between plants and microorganisms. The symbiosis mainly studied the diversity and ecological distribution of arbuscular mycorrhizal fungi in terrestrial ecosystems, and the mechanism and application of mycorrhizal symbionts in vegetation restoration, plant growth and development. the correlation between arbuscular mycorrhizal symbionts and the growth and metabolism of active ingredients in authentic Chinese herbal medicines; and research and development of mycorrhizal biotechnology.

2. Plant diversity and phyloevolution: In this direction, the phylogenetic classification and evolutionary biology of different plant groups are carried out at the level of species diversity and genetic diversity, and the technologies and methods of pollenology, phytochemistry, cytogenetics, molecular biology and other disciplines are used to deepen the genetic relationship and phylogenetic status of plant taxa.

It provides a basis for the establishment of a natural classification system and the sustainable use of resources. It focuses on the collection, conservation, phylogenetic evolution and sustainable utilization of angiosperm germplasm resources such as legumes and Asteraceae.

3. Sustainable utilization of authentic Chinese herbal medicine resources: Based on medicinal botany and modern technology of Chinese herbal medicines, this direction carries out research on the conservation of germplasm resources, nutrient metabolism regulation, active ingredient detection and evaluation, environmental modification and other aspects of authentic Chinese herbal medicine resources in Hebei Province, and combines them with related disciplines to serve the rational development and sustainable utilization of medicinal plant resources in China, especially in Hebei Province, and the development of the modern technology system of Chinese herbal medicines.

4. Resource phytochemistry: Based on organic chemistry and botany, this direction uses chemical and modern analytical methods to carry out research on the separation and purification, structural determination, biological activity and function, structural modification and synthesis of plant chemical components, and combines with related disciplines to focus on the research in the fields of plant-derived drugs and biopesticides, bioactive ingredients and natural lead compounds.

5. Plant molecular biology: This direction is committed to the research of exogenous gene cloning and transfer and expression to plants by using the principles and technologies of molecular biology and genetic engineering, and cultivating plant strains with transferred gene traits with transgenic plants and suitable cultivated or wild species as breeding materials. It focuses on the research in the fields of screening, cloning and expression of excellent genes of crops and medicinal plants.

Botanical explanations.

The science of studying the morphology, classification, physiology, ecology, distribution, occurrence, genetics, evolution, etc. of plants. Early botany, with a bias towards morphological and taxonomic observation and description. Modern botany has changed from the individual level of plants to the group and cellular and molecular levels, respectively, to the occurrence and development of plant life, so as to facilitate the control and transformation of plants.

Word decomposition Explanation of plant Plant í Plant: planting. Cultivate.

Planting. Tree planting. Establish:

Planting. Zhizhi (aspire). Kill the Jane Hall and erect the auspicious Yin:

Ear grafts. A large group of living things, cereals, flowers, plants, trees, etc.: plants.

Vegetation of the hall. Plant. The generals who supervised the fortifications in the ancient army:

Huayuan is planted, patrolling. Strokes.