Аннотация
Section Stenopoa is one of the most significant among the bluegrasses, and its proper identifying is important task. The epidermal characters, which determine the degree of roughness of the bluegrasses, are used widely in botanical literature, but the information on bluegrasses characters is controversial frequently. This work is devoted to the study of xeromorphic representatives of the section. The aim of this work was to assess the variability of the sculptural features of the epidermis, which determine the degree of roughness of the stems within xeromorphic bluegrass of the Stenopoa section, and the possibility of using these characters in taxonomy. The types of epidermal trychomes and their variability and frequencies within the populations of 12 species were researched using SEM and light microscope. As a result of the study, no species-specific types of epidermal structure were revealed. In all the studied species, with the exception of the Central Asian hybridogenic species Poa psilolepis, the epidermis of the stem and leaf sheaths contained crown cells and pricles or bristles in varying proportions. Under the panicle only crown cells or pricles directed upwards were observed. The most species showed high interpopulation and intrapopulation variability. At the same time, the Central Asian species were distinguished by less polymorphism and a small number of deviated individuals in the populations. The conducted studies cast doubt on the possibility of widespread use of epidermal sculpture as a discriminator for xeromorphic Stenopoa species, including for distinguishing between the Siberian P. stepposa and the European P. erythropoda.
Литература
Chung I-Ch (1965) Poa L. In Korean grasses. Taesutang Press, Seoul, 77–85. Edmondson JR (1980) Poa L. In: Flora Europaea 5: 159–167.
Ellis RP (1979) A procedure for standardizing comparative leaf anatomy in the Poaceae. II. The epidermis as seen in surfase view. Bothalia 12: 641–671. https://doi.org/10.4102/abc.v12i4.1441
Gamayunova АP (1956) Poa L. In: Flora of Kazakhstan 1: 221–238. [In Russian]
Koyama T (1987) Grasses of Japan and the neighboring regions. An identification Manual. Kodansha, Tokio, 570 pp.
Liu L (2003) Poa L. In: Flora Republicae Popularis Sinicae 9(2): 388–405. [In Chinese. English trans. by Dr. G.H. Zhu]
Metcalfe CR (1960) Anatomy of the Monocotyledons. Vol. 1. Gramineae. Clarendon Press, Oxford, 731 pp.
Nikolayevskaya, TS, Petrova LR (1989) Structure of the corn pericarpium and lemma of grasses. Nauka, Leningrad, 87 pp. [In Russian]
Ovchinnikov PN, Chukavina AP (1957) Poa L. In: Flora of Tajikistan 1: 135–189. [In Russian]
Peshkova G A (1979) Gramineae. In: Flora of Central Siberia 1: 69–139. [In Russian]
Probatova NS (1985) Poaceae. In: Vascular plants of the Soviet Far East 1: 89–382. [In Russian]
Prokudin YuN (1977) Grasses of Ukraine. Naukova dumka, Kiyev, 518 pp. [In Russian]
Reverdatto VV (1964) Flora of Krasnoyarsk district. Volume 2. Tomsk, 146 pp. [In Russian]
Roshevitz RY (1934) Myatlik – Poa L. In: Flora of the USSR 2: 366–426. [In Russian]
Serbanescu GH (1968) Poa stepposa (Krylov) Roshev. si relatiile ei taxonomice cu Poa sterilis M.B. Studi si cercetari de Biologie. Ser. Botanica 20 (2): 113–122 pp. [In Romanian]
Sergievskaya LP (1961) Poa L. In Flora of Western Siberia 12(1): 3102–3110 pp. [In Russian]
Sergievskaya LP (1969) Flora of Transbaikalia. Volume 2. Tomsk, 148 pp. [In Russian]
Tzvelev NN (1968) Plants of Central Asia. Volume 4. Nauka, Leningrad, 247 pp. [In Russian]
Tzvelev NN (1976) Grasses of the URSS. Nauka, Leningrad, 788 pp. [In Russian]
Tzvelev NN, Probatova NS (2019) Grasses of Russia. KMK, Moscow, 646 pp. [In Russian]
Авторы, публикующиеся в данном журнале, соглашаются со следующими условиями:
a. Авторы сохраняют за собой права на авторство своей работы и предоставляют журналу право первой публикации этой работы с правом после публикации распространять работу на условиях лицензии Creative Commons Attribution License, которая позволяет другим лицам свободно распространять опубликованную работу с обязательной ссылокой на авторов оригинальной работы и оригинальную публикацию в этом журнале.
b. Авторы сохраняют право заключать отдельные договора на неэксклюзивное распространение работы в том виде, в котором она была опубликована этим журналом (например, размещать работу в электронном архиве учреждения или публиковать в составе монографии), с условием сохраниения ссылки на оригинальную публикацию в этом журнале. с. Политика журнала разрешает и поощряет размещение авторами в сети Интернет (например в институтском хранилище или на персональном сайте) рукописи работы как до ее подачи в редакцию, так и во время ее редакционной обработки, так как это способствует продуктивной научной дискуссии и положительно сказывается на оперативности и динамике цитирования статьи