Laboratório de Farmacobotânica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, CCS, Cidade Universitária, Rio de Janeiro, Brazil.
Plant Biol (Stuttg). 2014 Mar;16(2):467-75. doi: 10.1111/plb.12060. Epub 2013 Jul 25.
Galls are anomalies in plant development from parasitic origin, and affect cellular differentiation or growth of plants. This parasite-plant interaction occurs in many environments and typically in vegetative organs of plants. The existence of galls in reproductive organs and their effects on the host plant are seldom described in the literature. In this paper, we present a novel study of galls in plants of the neotropical region. Galls of Bruggmmaniella byrsonimae develop in the flower buds of Byrsonima sericea DC. (Malpighiaceae) and affect development of the reproductive organs and the reproductive effort of these plants. The sepals and petals show hypertrophy of parenchyma tissues after differentiation, and the stamens exhibit degeneration of the sporogenic tissue. The gynoecium is not entirely developed; ovary and ovules are often absent. Changes in vascular tissues are also frequent, which may indicate high demand for nutrient resources by the new tissues initiated by the larva. We compared the amount of inflorescences, galls and fruits to evaluate possible effects on host reproduction. The results suggest that the Cecidomyiidae galls in flower organs affect fruit set and the reproductive success of B. sericea.
虫瘿是由寄生源引起的植物发育异常，影响植物的细胞分化或生长。这种寄生虫与植物的相互作用发生在许多环境中，通常发生在植物的营养器官上。在生殖器官中存在虫瘿及其对宿主植物的影响在文献中很少有描述。在本文中，我们对新热带地区植物的虫瘿进行了一项新的研究。Bruggmmaniella byrsonimae 在 Byrsonima sericea DC.（Malpighiaceae）的花蕾中发育，影响生殖器官的发育和这些植物的生殖力。萼片和花瓣在分化后表现出薄壁组织的肥大，雄蕊表现出生殖组织的退化。雌蕊没有完全发育；子房和胚珠常常缺失。血管组织的变化也很常见，这可能表明幼虫启动的新组织对营养资源的高需求。我们比较了花序、虫瘿和果实的数量，以评估对宿主繁殖的可能影响。结果表明，花器官中的瘿螨科虫瘿影响果实的结实和 B. sericea 的生殖成功。
